KR0116207Y1 - Cement mixer - Google Patents

Abstract

The cement mixer is pivotally mounted at the connection of the arm assembly of a large machine (eg an excavator or shovel machine). The cement mixer is a cylinder, a stirrer assembly used to pivot in a cylinder and used to stir the material to be mixed in the cylinder, a mounting beam connecting the cylinder to the connection, a mounting beam mounted on the mounting beam and positioned directly above the cylinder to mix A funnel used for receiving and a weighing device used to weigh the material provided on the mounting beam and received in the funnel.

Description

Cement mixer

1 is a side view of a cement mixer according to the present invention in which the mixer is mounted to the arm assembly connection of a large machine (eg, an excavator or an inserted machine).

Figure 2 is a side cross-sectional view showing the internal structure of the cement mixer according to the present invention.

3 is a partial cross-sectional front view of the cement mixer according to the present invention.

4 is a side view showing that the cement mixer according to the present invention is mounted on an excavator and performs a sand dumping operation.

FIG. 5 is a view similar to FIG. 4 but with a side view showing that the cement mixer of the present invention operates to measure the weight of sand carried in FIG.

6 is a view similar to that of FIG. 4, but showing a pair of funnels of the cement mixer of the present invention opened to empty unnecessary sand from the funnel.

7 is a side view showing that the cement mixer of the present invention is moving under a conveyor belt to receive gravel.

8 is a side view showing that an excavator equipped with a cement mixer of the present invention is moving near a water and cement reservoir to receive water and cement.

9 is a side view showing that the excavator is moving near the casting site to pour concrete to be mixed.

10 is a front view showing another embodiment of the cement mixer of the present invention mounted to the arm assembly connection of a large machine.

Figure 11 is a front view showing another embodiment of the cement mixer of the present invention mounted to the arm assembly connection of a large machine.

12 is a cross-sectional view of FIG. 11 showing the internal structure of a cement mixer embodiment.

Figure 13 is a partially cutaway front view showing another embodiment of the cement mixer of the present invention, in which the funnel is equipped with a spiral induction device.

14 is a front cross-sectional view showing another embodiment of a funnel equipped with a conveyor belt.

FIG. 15 is an enlarged view of FIG. 12, with some cross-sectional enlarged views detailing the flexible blade.

＊ Explanation of symbols for main parts of drawing

10 cylinder 12 carrier

13 mounting sheet 14 reinforcement beam

14 ': beam 15: pair of L-shaped induction rails

17: hydraulic cylinder 18: base frame

19: protective surface 19 ': protective surface

20: stirrer assembly 21: shaft

22: spiral blade 23: movable motor

24: flexible wiper 31: funnel

32: a pair of mounting beam 33: hydraulic cylinder

34: weighing device 35: vertical mounting beam

36: put side 37: sand removal plate

38, 38 ': Spiral induction device 39: Small conveyor belt

40: excavator 41, 42: rear arm, front arm

43: arm assembly connection 43 ': connection

46: steel rope 50: pile of sand

60: conveyor belt 70, 72: cement, water supply warehouse

80: casting position 102: adjustment chamber

104: upper hole 105, 16: first, second valve

106: lower hole 108: bow-shaped guide groove

122: pair of bearing carriers 142: two inclined sides

152: Induction Groove 162: Ear Shaped Stuff

172: connecting lugs 192: two parallel strips

232: speed reduction device 242: frame part

244: strong spring 246: rubber cover

248: wiping plate 314: inner edge

316: door 322: hole

324 bolts 326 a pair of bolts

332: entrance 334: the funnel exit

352: universal joint 372: a pair of sticks

The present invention relates to a cement mixer, and more particularly to a cement mixer capable of pouring material to be mixed, such as sand or gravel, into the mixer. In addition, the mixer is mounted on a large machine, such as an excavator or shovel machine, and is configured to enhance the mobility of the mixer in order to facilitate the action of loading the required materials into the mixer and pouring the mixed concrete into the casting position.

At the construction site, concrete can be supplied by three methods. Workers first mix cement, sand, gravel and water manually using suitable tools such as shovels from plates or boards. Secondly, the concrete is prepared by a cement mixer and then poured into a suitable device (such as a wheelbarrow that can deliver the concrete to the casting site). Thirdly, the concrete is prepared in advance in the mixing device, sent to the construction site by the mixer truck, and finally delivered to the casting position by the concrete delivery pump and pipe. All of the above methods of providing concrete have their respective drawbacks. In particular, the first and second methods are laborious, have low work efficiency, and the third requires high expenditure on equipment, although the work is more effective.

It is an object of the present invention to provide a cement mixer which can have a high working effect of mixing cement and pouring concrete to be mixed into the casting site and has a low cost in terms of equipment.

Another object of the present invention is to provide a cement mixer adapted to be mounted on a large machine (for example an excavator or shovel machine to facilitate the mobility of the mixer).

It is a further object of the present invention to provide a cement mixer which can pump the material to be mixed (eg sand and gravel) into the mixer.

Another object of the present invention is to provide a cement mixer capable of measuring the weight of the mixed material and removing unnecessary material.

Further objects and advantages of the present invention will become apparent from a careful understanding of the detailed description provided hereinafter with reference to the accompanying drawings.

The cement mixer of the present invention, referred to in FIGS. 1 and 4, has a pair of mounting beams pivotably connected to the arm assembly connection 43 of a large machine (e.g., an excavator 40 as shown in the present application). (32), the cylinder 10 mounted on the beam 32 via the mounting sheet 13, the weighing device 34 mounted between the beam 32 and the mounting sheet 13, pivoting on the beam 32 It consists primarily of a filling assembly 30, which is mounted so as to be capable of being positioned directly above the cylinder 10, and an agitator assembly 20, which is pivotally mounted on the cylinder 10.

The beam 32 is pivotally mounted to the connecting portion 43 via a pair of bolts 326 extending beyond the beam 32 and the hole 322 of the connecting portion 43. The filling assembly includes a pair of funnels 31, each funnel 31 being beamed by a pair of bolts 324 extending past the wall of the funnel 31 and the hole 312 of the beam 32. (32) is pivotally mounted.

Each funnel 31 includes an inlet 322 for filling the funnel 31 with a material to be mixed with sand, water, cement and gravel and an outlet 334 for the material to flow out. The funnel located on the left side of the drawing is mounted on a protective surface 19 made of abrasion resistant material to protect the shovel surface 36 and the left side funnel 31 to facilitate the loading of the cement mixer. do. In addition, the left side of the cylinder 10 is also mounted to a protective surface 19 ′ that protects the cylinder 10 from abrasion when the present cement mixture is operated to pour sand or gravel in the funnel 31.

The two pairs of hydraulic cylinders 33 are bolts 324 such that the funnel 31 reaches a point shown by the dashed line in FIG. 1 when the cylinder 33 is expanded by the flow stress from the excavator 40. It is mounted so as to be connected to the beam 32 and the funnel 31, respectively, to have a pivoting motion with respect to.

On the right side of the figure, the steel rope 46 is mounted to be connected to the beam 32 and the funnel 31 respectively so as to have a pivoting movement with respect to the bolt 326.

On the right side of the figure, steel rope 46 connects cylinder 10 to a device that exerts a pull stress on steel rope 46 to rotate the present cement mixture against bolt 326.

A pair of shock absorbers and support framework 18 are mounted to the bottom of cylinder 10 to help the present cement mixture be supported on the ground.

The movable motor 23 is powered by an excavator that is mounted on one side of the cylinder 10 and that drives the rotating stirrer assembly 20. The stirrer assembly 20 is a pair of bearing carriers 122 mounted on the cylinder 10, mounted on the carriers 12.

It is attached to a pair of bearings 122, the shaft 21 mounted on the bearing 122 and the rotating shaft 21 to engage the speed reduction device 232, and the device 232 and the shaft 21, respectively. It is sent to shaft 21 through portions 234 and 212.

The blades 22 are connected to the shaft by three ribs 11 having the same space from each other. Thus, when the shaft 21 is actuated by the motor 23, the blade 22 will rotate.

The conditioning chamber 102 is confined to the cylinder 10 receiving the mixed material stirred by the blades 22.

The chamber 102 has two upper holes 104 which receive material to be mixed from the filling assembly 30 and a lower hole 106 through which the mixed concrete flows down. The first valve 105 and the second valve 16 are provided to adjust opening and closing of the holes 104 and 106, respectively. Each hole 104 and 106 is provided with a seal around the hole to prevent leakage. A pair of L-shaped induction rails 15 are provided next to the second valve 16 and each of the induction grooves 152 that engages one side of the second valve 16 of the valve 16 having a sliding motion. To qualify. The side of the second valve 16 in engagement with the guide groove 152 has a protective portion extending past the bow-shaped guide groove 108 in the cylinder 10 and has a connecting lug 172 at its tip.

Lug 172 is tightly connected with ear shaped object 162 of second valve 16 and slides along guide rail 15 to close or open lower hole 106 when cylinder 17 expands or contracts. The valve 16 can be actuated.

At the top of the cylinder 10, there is provided an entirely reinforcement beam 14. Beam 14 has a triangular cross section with two sloped sides 142. The beam 14 extends along the length of the cylinder 10 and is firmly connected to the mounting beam 32 next to the two tips that reinforce the connection strength between the cylinder 10 and the beam 32 and the stiffness of the present cement. The funnel 31 has an inner edge 314 corresponding to the inclined surfaces 142. When the cylinder 33 is retracted to prepare to fill the chamber 102 with the material to be mixed, the inner edge 314 may assist the outlet 334 of the funnel 31 centered with the top hole 104. Each will be located on the inclined sides 142.

Referring to FIG. 4, the cement mixer is mounted to the tip of the arm assembly of the excavator 40 and operated to pour a pile of sand 50 to fill the funnel 31 with sand. The arm assembly of the excavator 40 includes three hydraulic cylinders 44, a rear arm 41, a front arm 42 and a connection 43, each controlled by a hydraulic cylinder 44. Before starting the pouring, the steel rope 46 is pulled to rotate the cement mixer in the horizontal direction as shown by the solid line.

Then, as indicated by the dashed line, the arm assembly is operated with known operation of the excavator 40 to pour sand 50 into the funnel 31.

Referring to FIG. 5, when the sand assembly is finished pouring funnel 31 into the funnel 31 and the cement mixer has reached the vertical position shown, it is located between the mounting beam 32 and the mounting sheet 13. The weighing device 34 is operated to measure the sand weight. The stress imposed by the sand weight now actually acts on the cylinder 10. Here, the weighing device 34 may be of mechanical or electrical form. However, in the present invention, the electrical weighing device is given priority. As shown by the dashed line, it is possible to mount the weighing device 34 on the connection 43 for weighing the sand and it will be easily understood by those skilled in the art.

Referring to FIG. 6, when the weight of sand filled in funnel 31 is measured and found to exceed a predetermined value, funnel 31 operates cylinder 33 to empty unnecessary sand from funnel 31. Slightly open by The funnel 31 closes when the predetermined value of the sand weight is reached by being sensed by the weighing device 34 and the first valve 105 then closes the top hole 104 such that the sand falls into the adjustment chamber 102. It is operated to open. Thereafter, the upper hole 104 is closed again.

Referring to FIG. 7, when sand is loaded into the present cement mixer, the excavator 40 is moved to the gravel feed site to receive gravel from the conveyor belt 60. When the gravel is filled, the cement mixer is positioned in the vertical direction so that the weighing device 34 can continuously detect the weight of the gravel filled in the funnel 31. When the selected amount of gravel is filled in the funnel 31, the conveyor belt 60 is stopped to stop the filling of the gravel. Thereafter, the first valve 105 mentioned above is actuated to open the upper hole 104 such that gravel falls into the adjustment chamber 102.

Then, as shown in FIG. 8, the excavator 40 is moved near the cement water supply reservoirs 70 and 72 to receive cement and water continuously in the cement mixer in the same manner as the operation of receiving gravel.

When all of the required materials (i.e. sand, gravel, cement, water) have been filled in the adjustment chamber 102 in the predetermined amount, the movable motor 23 rotates the spiral blade 22 which sufficiently agitates these materials. Is activated. At the same time, the excavator 40 is moved near the casting position 80 as shown in FIG. The arm assembly of the excavator 40 is then activated to lift the present cement mixer located directly above the casting position 80.

Finally, the second valve 16 is activated to open the lower hole 106 to pour the concrete to be sufficiently mixed into the casting position 80. 10 shows a modified embodiment of the present cement mixer, in which a horizontal connecting beam 14 ′ is provided on top of the cylinder 10. The vertically mounted beam 35 connects the beam 14 'to the connection 43' of the excavator 40 via a grinding tool or universal joint 352. Here, the connecting portion 43 ′ has a different form from that of the connecting portion 43. The weighing device 34 is mounted on the vertical mounting beam 35 and is located between the grinding tool connection point 352 and the horizontal connection beam 14. In this embodiment, the funnel 31 no longer rotates by actuation of the cylinder 33. Rather, in this embodiment, the funnel provides doors 316 on their walls. The doors 316 are generally closed by known means and have a prognosis, a spring load device.

A pair of rods 372 extends horizontally through the funnel 31, respectively. A pair of sand transfer plates 37 are each provided to the funnel 31 and slideably mounted to the rods 372. After the sand has been filled in the funnel 31 of the present embodiment in the same manner as described in FIGS. 4 and 5, the sand transfer plates 37 follow a rod 372 and a pair of hydraulic cylinders connected to the plates 37. And actuated to move towards doors 316 by operation of (not shown). The sand filled in the funnel 31 in turn by the pushing force of the plates 37 will push the doors and open them. Thus, unnecessary sand in the funnel 31 will be empty.

11 and 12 show another embodiment of the present cement mixer, where the stirrer assembly 20 is oriented perpendicular to the speed reduction device 232 and the movable motor 23 mounted on top of the cylinder 10. Are arranged. The spiral blade 22 extends perpendicular to the cylinder 10. In addition, in this embodiment, the stirrer assembly 20 further provides a number of flexible wipers 24 securely fixed to the shaft 21 and is arranged differently with the helical blade 22. Detailed description of the flexible blades 24 will be described in conjunction with FIG.

In particular, referring to FIG. 11, the protection plates 19 and 19 'of FIG. 1 in this embodiment are cylindrical 10 from the tread plate 36 to protect the funnel 31 and the cylinder 10. FIG. It is replaced by two parallel strips 192 extending and mounted up to the middle of the head.

13 and 14 show two devices each capable of function similar to that of the sand removal plates 37 of FIG. 10.

FIG. 13 shows that the helical direction rotates with two shafts 38 and 38 'mounted on the funnel 31 with two helical guide devices 38 and 38'. The shafts 38 and 38 'can be rotated by known means (such as a motor through a transmission gear). When the helical inductions 38 and 38 'are rotated, the sand in the funnel 31 will be moved into the helical passageway of the subsequent inductions 38, 38' to be released towards the door 316. As a result, the door 316 is opened to empty unnecessary sand from the funnel 31.

14 shows that a small conveyor belt 39 is mounted underneath (same as the left funnel) of the right funnel 31. The conveyor belt 39 is actuated by known means (e.g. a motor through a transmission gear) to move sand in the funnel toward the door 316, whereby the door 316 is opened and from the funnel 31 Emptying unnecessary sand.

FIG. 15 is a detailed description of one of the flexible days 24 of FIG. Each flexible blade 24 comprises a base frame portion 242 securely fixed to the shaft 21 by known means (such as screwing or welding). The strong spring 244, the cover 246 formed of plastic or rubber, and the wrapped spring 244 are firmly attached to the wiping plate 248 formed of the tip and the wear-resistant plastic firmly mounted on the base frame 242. Has another tip. As shown in FIG. 12, the wiping plate 248 is located near the inner wall of the cylinder 10. The flexible blades 24 aim to wipe off the concrete attached to the inner wall of the cylinder 10, whereby the efficiency of mixing is enhanced. In addition, the shape of the flexible blades 24 has the following additional advantages. It produces little noise when it is operating, and the flexible blades 24 still function well even if there is a small depression in the cylindrical wall of the cylinder 10 due to the impact.

Although the present invention has been described with some specificity, the present specification has been described by way of example only to illustrate the present invention, and changes in detail and combinations and arrangements of the components are to be regarded as the scope of the subsequent utility model registration claims. It can be done in many ways without departing from the spirit and scope.

Claims (15)

10. A cement mixer mounted on and used at the connection of the arm assembly of a large machine (e.g., excavator or shovel machine), the cement mixer comprising: a cylinder having an upper hole for receiving material to be mixed and a lower hole for discharging material to be mixed; A first valve and a second valve mounted on the cylinder to control opening and closing of the upper and lower holes, respectively; An assembly rotatably mounted on the cylinder and used to agitate the material to be mixed in the cylinder; A mounting beam for connecting the cylinder to the connecting portion; A filling assembly mounted on the mounting beam and positioned over the cylinder to receive the material to be mixed and convey a predetermined amount of the material to be mixed into the cylinder through the upper hole; A cement mixer characterized by comprising a weighing device provided on the mounting beam and used to weigh the material introduced into the filling assembly. The cement mixer of claim 1 comprising control means for controlling the direction of the cement mixer with respect to the connection. 3. The cement mixer of claim 2, wherein the control means consists of a steel rope configured such that one end is connected to the cylinder and the other end to the rotation generator. The at least one funnel of claim 1, wherein the filling assembly is used to receive the material to be mixed and is pivotally mounted to the mounting beam and has an inlet and an outlet, and the outlet of the funnel is connected to the mounting beam and the funnel so that the outlet of the funnel is at the top of the cylinder. With at least one hydraulic cylinder to pivot the funnel against the mounting beam between the first position aligned with the hole and the outlet of the funnel with a second position that is not aligned with the upper hole of the cylinder to empty the material received in the funnel from the cement mixer. Cement mixer, characterized in that The filling assembly of claim 1, wherein the filling assembly is used to receive the material to be mixed and is securely mounted to the mounting beam, the inlet, the outlet aligned with the upper hole of the cylinder, the door normally closed, and the at least one sand removal plate. A cement mixer, wherein the sand removal plate is slidably mounted in the funnel so that the material received in the funnel is emptied from the cement mixer through the door when the sand removal plate is moved to the door. 2. The filling assembly of claim 1, wherein the filling assembly is used to receive the material to be mixed and is securely mounted to the mounting beam, the inlet, the outlet aligned with the top hole of the cylinder, and the door normally closed, and at least one pivotable A cement mixer characterized by comprising at least one funnel with a spiral induction device, wherein when the spiral induction device is rotated the material received in the funnel is emptied from the cement mixer through the door 2. The filling assembly of claim 1, wherein the filling assembly is at least equipped with an inlet, an outlet aligned to the mounting beam and aligned to the upper hole of the cylinder, and a door normally closed, with at least one conveyor belt, to receive the material to be mixed. It is composed of a funnel, the cement mixer characterized in that when the conveyor belt is operated to empty the material received in the funnel from the cement mixer through the door 3. The cement mixer of claim 2, wherein the filling assembly is comprised of a pouring plate to introduce material to be mixed in the filling assembly. 9. The cement mixer of claim 8, formed of a material resistant to abrasion and comprising a shield plate provided in the filling assembly and a cylinder to protect them from abrasion when the cement mixer performs the throwing mechanical action. 2. A valve according to claim 1, wherein the second valve is guided to a pair of L-shaped induction rails provided next to the second valve, each induction rail having an induction tube that engages one side of the second valve for a valve having a sliding motion. The second valve face has a portion designed to extend through the bow-shaped guide groove in the cylinder and is formed with an ear-shaped member at its tip, and the cement mixer is pivotally mounted on the cylindrical face and its piston It consists of a hydraulic cylinder having a lug connected to one end, the lug being the lug tightly connected to the ear member of the second valve, which moves along the guide rail to close or open the lower bore when the cylinder is extended or retracted. Cement mixer, characterized in that to operate the valve The cement mixer of claim 1, wherein the stirrer assembly consists of a shaft extending through the cylinder and a rigid spiral blade securely attached to the shaft. 12. The cement mixer of claim 11, comprising a plurality of flexible blade assemblies mounted differently between the spiral blades. 13. The flexible blade assembly of claim 12, wherein each flexible blade assembly comprises a base frame portion securely attached to the shaft and a cover made of strong spring and plastic or rubber, and a tip plate securely mounted to the base frame and a wiping plate formed of wear resistant plastic, The wiping tube is a cement mixer characterized in that it consists of a sine spring with another tip firmly attached to the cylinder). 2. The cement mixer of claim 1, comprising a pair of shock absorbers and a support base mounted to the bottom of the cylinder to assist the cement mixer as supported by the ground. The cement mixer of claim 1, wherein the weighing device is provided at the connecting portion.