CN104772826A - Concrete ingredient conveying and mixing device - Google Patents

Abstract

The invention discloses a concrete conveying and batching device for underground grouting operations, which comprises a fixed-ratio unloading vehicle and a mixing and feeding machine. The fixed-ratio unloading vehicle includes a cement box and a gravel box, and a cement box and a gravel box The volume is set according to the proportion of cement and gravel in the concrete. The cement box and the gravel box are respectively equipped with screw conveying devices for conveying raw materials out of the box. The respective speeds of the two screw conveyors are set according to the volume ratio of the cement box and the gravel box. The concrete conveying and batching device provided by the invention works in an automatic unloading mode, and directly unloads the raw materials without the direct participation of manpower. Therefore, it is possible to unload cement and gravel according to the required ratio. Not only does it not require manpower to unload and mix the raw materials, but also the raw materials of the concrete prepared by the technical solution provided by the present invention are mixed. The accuracy is also better.

Description

Concrete batching device

technical field

The invention relates to the technical field of concrete construction equipment in a special environment, and more specifically relates to a concrete conveying and batching device for downhole spraying.

Background technique

At present, in the construction process of tunneling roadway and pioneering rock roadway in coal mines, anchor shotcrete support is mostly used, and the anchor rod, shotcrete and surrounding rock jointly form a bearing structure, which restricts the free development of surrounding rock deformation and prevents the rock mass from loosening and falling. To achieve the purpose of maintaining roadway safety. Among them, before the concrete spraying, the concrete raw materials need to be transported to the underground, and directly operated by a series of manpower, see below for details.

At present, the preparation process before grouting in coal mines generally includes the following steps. The specific process is: when the sand and gravel mixture and the cement truck arrive at the construction site, at least two people use shovels to shovel the two materials from the mine truck in proportion. Go to another container, and use at least one person to mix it evenly in the container to become a cement mixture, and then transport the cement mixture to the shotcrete machine, and manually use a shovel to shovel it into the shotcrete machine for the third time. According to the height of the excavation footage, each class uses about 7 to 12 cubic meters of materials, and the capacity of about 4 to 6 1.5-ton mine cars. In this process, mixing, mixing, and feeding are all done manually with shovels. During this process, a lot of manual labor is consumed, and the proportioning and mixing of the sprayed grout are not uniform, and dust is generated. From the above description, it can be clearly seen that the downhole concrete treatment process takes a lot of manpower, and there are obvious deficiencies in the various processes directly carried out by manpower.

To sum up, how to effectively solve the problems that the underground concrete production and transportation process takes too much manpower and the concrete ratio is difficult to control is an urgent problem for those skilled in the art.

Contents of the invention

In view of this, the purpose of the present invention is to provide a concrete delivery and batching device, the structural design of which can effectively solve the problems of excessive manpower and difficult control of concrete proportioning in the underground concrete production and transportation process.

In order to achieve the above object, the present invention provides the following technical solutions:

A concrete delivery and batching device, which is used for underground spraying operations, includes a fixed-ratio unloading vehicle and a mixing feeder. The fixed-ratio unloading vehicle includes a cement box and a gravel box. The proportion of cement and gravel is set. The cement compartment is equipped with a first screw conveying device for conveying cement out of the compartment, and the gravel compartment is equipped with a second screw conveying device for transporting sand and gravel out of the compartment. The rotation speed of the screw conveying device is set according to the volume ratio of the cement box and the gravel box, and there is a material receiving device under the first screw conveying device and the second screw conveying device.

Preferably, in the above-mentioned concrete conveying and batching device, the fixed-ratio unloading vehicle also includes a transmission device that drives the first screw conveying device and the second screw conveying device to rotate and convey materials. The first sprocket and the second sprocket are fixedly connected to the respective main shafts of the screw conveying device. The transmission ratio between the first sprocket and the second sprocket is set according to the volume ratio of the cement box and the gravel box. The first sprocket and the second sprocket The two sprockets are connected by a chain, and the transmission device also includes a rotation output device that drives the rotation of the screw conveying device.

Preferably, in the above-mentioned concrete conveying and batching device, the output side of the screw conveying device is provided with a lifting jack for lifting one end of the constant ratio unloading vehicle.

Preferably, in the above-mentioned concrete conveying and batching device, a liftable cover plate is provided on the top of the fixed-ratio unloading vehicle.

Preferably, in the above-mentioned concrete batching device, the mixing and feeding machine includes a feeding screw conveyor whose feed end extends into the receiving device, and also includes a position adjustment device arranged at the lower part of the feeding screw conveyor. The material screw conveyor is connected with the chassis through a position adjustment device.

Preferably, in the above-mentioned concrete batching device, the adjustment device includes a vertical support vertically arranged between the chassis and the feeding screw conveyor, and a horizontal position of the vertical support on the chassis is provided between the vertical support and the chassis. Rotary adjustment mechanism.

Preferably, in the above-mentioned concrete conveying and batching device, a horizontal support is further provided between the vertical support and the feeding screw conveyor, and the horizontal support is provided with a screw thread tube assembly whose length can be adjusted through rotation and expansion.

Preferably, in the above-mentioned concrete conveying and batching device, the discharge end of the feeding screw conveyor is provided with a rotatable discharge port.

The concrete conveying and distributing device for underground grouting operation provided by the present invention includes a fixed-ratio unloading vehicle and a mixing feeder. The fixed-ratio unloading vehicle includes a cement box and a gravel box, and the volume of the cement box and the gravel box is according to The proportion of cement and gravel in the concrete is set. The cement compartment is equipped with a first screw conveying device for conveying cement out of the compartment, and the gravel compartment is equipped with a second screw conveying device for transporting sand and gravel out of the compartment. The speed of the second screw conveying device is set according to the volume ratio of the cement box and the gravel box, and a material receiving device is arranged under the first screw conveying device and the second screw conveying device. The concrete conveying and batching device provided by the invention works in an automatic unloading mode, and directly unloads the raw materials without the direct participation of manpower. Therefore, it is possible to unload the cement and gravel according to the required ratio. Not only does it not require manpower to unload and mix the raw materials, but also the raw materials of the concrete prepared by the technical solution provided by the present invention are mixed. The accuracy is also better.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is the overall structural schematic diagram of the concrete batching device provided by the embodiment of the present invention;

Fig. 2 is a side view structural schematic diagram of a fixed-ratio unloading truck provided by an embodiment of the present invention;

Fig. 3 is the schematic diagram of the front view structure of the fixed-ratio unloading truck provided by the embodiment of the present invention;

Fig. 4 is a top view structural schematic diagram of a fixed-ratio unloading truck provided by an embodiment of the present invention;

Fig. 5 is a top view structural schematic diagram of the stirring and feeding machine provided by the embodiment of the present invention;

Fig. 6 is a side view schematic diagram of the stirring and feeding machine provided by the embodiment of the present invention.

The marks in the attached drawings are as follows:

1 is a constant ratio unloading vehicle, 101 is a cement box, 102 is a gravel box, 103 is the first screw conveying device, 104 is the second screw conveying device, 105 is a material receiving device, 106 is a lifting jack, and 107 is a rotating Output device, 108 is the first sprocket, 109 is the second sprocket, 110 is the chain, 111 is the openable cover, 2 is the stirring feeder, 21 is the feeding screw conveyor, 22 is the position adjustment device , 221 is a vertical support, 222 is a horizontal support, 223 is a lead screw screw tube assembly, 23 is a chassis, and 24 is a rotary discharge port.

Detailed ways

The embodiment of the invention discloses a concrete conveying and batching device for underground grouting operations, so as to solve the problems that the underground concrete production and transportation process consumes too much manpower, and the concrete proportion is difficult to control.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1-Fig. 4, which are respectively the overall structural schematic diagram of the concrete batching device provided by the embodiment of the present invention, the side view structural schematic diagram, the front structural schematic diagram and the top view structural schematic diagram of the fixed-ratio unloading truck.

The concrete conveying and batching device for underground spraying operation provided by the present invention includes a fixed ratio unloading vehicle 1 and a mixing feeder 2, and the fixed ratio unloading vehicle 1 includes a cement box 101 and a gravel box 102, and the cement box 101 And the volume of the gravel compartment 102 is set according to the ratio of cement and gravel in the concrete. The cement compartment 101 is provided with a first screw conveying device 103 for conveying cement out of the compartment, and the gravel compartment 102 is provided with a second screw conveyor for conveying gravel out of the compartment. The screw conveying device 104, the speed of the first screw conveying device 103 and the second screw conveying device 104 are set according to the volume ratio of the cement box 101 and the gravel box 102. device 105.

It should be noted that the concrete batching device is generally composed of a fixed-ratio unloading vehicle 1 and a mixing feeder 2, and the compartments containing raw materials in the fixed-ratio unloading vehicle 1 are based on the cement and material required by the actual situation. The proportion of sand and gravel is designed. For example, the ratio of cement and gravel is 1:3 to configure concrete. Here, the volume ratio of cement box 101 and sand and gravel box 102 is set to about 1:3. Also, in order to ensure uniform mixing, unloading The conveying speed of the two sets of screw conveying devices used is also set according to the corresponding raw materials, for example, the output speed of cement and sand is also set to 1:3.

The concrete conveying and batching device provided by the present invention works in an automatic unloading mode, and directly unloads the raw materials without the direct participation of manpower. Respective speed ratios, so it is possible to unload cement and gravel according to the required ratio, not only does not need manpower to unload and mix the raw materials, but also the concrete raw materials prepared by the technical solution provided by the invention The accuracy of the ratio is also better.

In order to further optimize the design of the two sets of screw conveying devices in the above technical solution, on the basis of the above embodiments, the fixed-ratio unloading vehicle 1 also includes a transmission that drives the first screw conveying device 103 and the second screw conveying device 104 to rotate and convey materials. device, the transmission device includes a first sprocket 108 and a second sprocket 109 fixedly connected to the main rotating shafts of the first screw conveying device 103 and the second screw conveying device 104 respectively, the first sprocket 108 and the second sprocket 109 The transmission ratio between them is set according to the volume ratio of the cement box 101 and the gravel box 102. The first sprocket 108 and the second sprocket 109 are connected by a chain 110. The transmission device also includes a rotary output device 107 that drives the screw conveyor to rotate.

It should be noted that the screw conveying device mainly includes a helical blade with a certain length that rotates around the main shaft, and a cylindrical cavity for accommodating the helical blade. The sprocket wheel rotates the output device 107 to make one group of screw conveyors rotate, and under the drive of the sprocket and chain 110, the other group of screw conveyors rotates according to the predetermined sprocket transmission ratio.

Using this sprocket chain 110 device to make the first screw conveying device 103 and the second screw conveying device 104 complete the technical scheme of fixed ratio rotation, the implementation of transmission stability is simple, and the space required by the device is relatively small, which can be completed excellently. established technical tasks.

In order to further optimize the actual application effect of the constant ratio unloading vehicle 1 in the above technical solution, on the basis of the above embodiments, a lifting jack 106 for lifting one end of the fixed ratio unloading vehicle 1 is provided on the output side of the screw conveying device. It should be noted that the lifting jack 106 is installed on the fixed-ratio unloading vehicle 1 near the discharge end, and the other end of the lifting jack 106 is firmly supported by the lower support of the fixed-ratio unloading vehicle 1 .

Adopting this technical scheme, use the lifting jack 106 to lift the discharge end of the fixed-ratio unloading truck 1 to a certain height, so that the screw conveying device can perform unloading work, and it is helpful to create a certain inclination angle in the unloading truck and its compartment. The screw conveying device unloads all the raw materials in the car to reduce the residue of raw materials in the car; this design also lifts one end of the unloading car to leave space for the material receiving device 105 set under the discharge port.

In order to further optimize the raw material preservation effect of the fixed-ratio unloading truck 1 in the above technical solution, on the basis of the above-mentioned embodiments, the top of the fixed-ratio unloading truck 1 is provided with a liftable cover plate 111 .

Adopting the technical solution of setting the liftable cover plate 111 can effectively prevent water from entering the cement box 101 during transportation or storage, causing the cement to solidify in advance, and optimizing the preservation effect of raw materials in the technical solution.

Please refer to Fig. 1, Fig. 5 and Fig. 6, which are respectively the overall structural schematic diagram of the concrete conveying and batching device provided by the embodiment of the present invention, the top view structural schematic diagram and the side view structural schematic diagram of the mixing and feeding machine.

In order to further optimize the practical effect of the concrete conveying and batching device in the above-mentioned technical solution, and further save manpower to participate in the work, on the basis of the above-mentioned embodiment, the stirring and feeding machine 2 includes an upper feeding end extending into the receiving device 105. The feeding screw conveyor 21 also includes a position adjusting device 22 arranged at the lower part of the feeding screw conveyor 21 , and the feeding screw conveyor 21 is connected to the chassis 23 through the position adjusting device 22 .

It should be noted that the feeding end of the feeding screw conveyor 21 directly extends into the material receiving device 105, so that the feeding screw conveyor 21 directly obtains the raw materials to be conveyed from the material receiving device 105, and the feeding screw conveyor 21 The lower part is equipped with an adjustment device for adjusting the height and position of the feeding screw conveyor 21 to ensure that one end of the feeding screw conveyor 21 is in an ideal connection position with the fixed-ratio unloading vehicle 1, and the other end of the feeding screw conveyor 21 is connected with the spraying grout The machine can also be correctly connected, and the position adjustment device 22 is arranged between the feeding screw conveyor 21 and the chassis 23, and also supports the feeding screw conveyor 21.

Adopting the technical solution of setting the stirring and feeding machine 2 provided in this embodiment at the material receiving device 105 further optimizes the overall labor-saving technical effect of the devices in the above-mentioned embodiments. Stir and mix the raw materials in the receiving device 105 through the feeding screw conveyor 21, and further transport the mixed finished product to the spraying machine, which not only saves the process of manpower mixing and feeding, but uses mechanical operation instead, The mixing effect is optimized to make the mixing more uniform. At the same time, the process is greatly accelerated and time costs are saved. In view of the limited hardening time of concrete, more time is left for subsequent processes such as spraying.

In order to further optimize the practical effect of the concrete conveying and batching device in the above technical solution, on the basis of the above embodiments, the position adjusting device 22 includes a vertical support 221 vertically arranged between the chassis 23 and the feeding screw conveyor 21. A rotation adjustment structure for adjusting the horizontal position of the vertical support 221 on the chassis 23 is provided between the bracket 221 and the chassis 23 .

Adopt the technical scheme of this vertical bracket 221, rotate in the plane parallel to the vehicle disc through the rotation adjustment structure of the vertical bracket 221, to realize the mixing and feeding machine 2 and the fixed ratio unloading mine car, the spraying machine (supporting equipment) The adjustment of the horizontal position makes the docking easier to complete and greatly improves the implementability of the technical solution.

In order to further optimize the practical effect of the concrete delivery and batching device in the above technical solution, on the basis of the above embodiments, a horizontal support 222 is also provided between the vertical support 221 and the feeding screw conveyor 21, and a horizontal support 222 is provided on the horizontal support 222. There is a lead screw screw barrel assembly 223 that can be adjusted in length through rotation.

By rotating and adjusting the lead screw and screw cylinder assembly 223, the feeding screw conveyor 21 is driven to incline at a certain angle as a whole, making it easier for its feeding port to enter the material receiving device 105 of the fixed-ratio unloading truck 1, making the docking easier to complete, and further enabling The implementability of the technical solution is greatly improved.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

In order to further optimize the practical effect of the agitating feeder 2 in the above technical solution, on the basis of the above embodiments, the discharge end of the feeding screw conveyor 21 is provided with a rotatable discharge port 24 .

The design of this rotatable discharge port 24 is mainly to cope with the situation that it is difficult to complete the docking between the discharge port of the feeding screw conveyor 21 and the feed port of the shotcrete machine under different working conditions. The feed port is easier to adapt to different positions, so that the process related to concrete spraying can be carried out more smoothly.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A concrete batching device is used for downhole grouting operations, characterized in that it comprises a fixed ratio unloading vehicle (1) and a stirring feeder (2), and the fixed ratio unloading vehicle (1) includes Cement box (101) and gravel box (102), the volume of the cement box (101) and the gravel box (102) is set according to the ratio of cement and sand in the concrete, and the cement box (101) is equipped with There is a first screw conveying device (103) for conveying cement out of the compartment, and a second screw conveying device (104) for conveying gravel out of the compartment is provided in the gravel compartment (102), and the first screw conveying device (103 ) and the second screw conveyor (104) are set according to the volume ratio of the cement box (101) and the gravel box (102), the first screw conveyor (103) and the second screw conveyor A material receiving device (105) is provided below the conveying device (104). 2. The concrete batching device according to claim 1, characterized in that, the fixed-ratio unloading vehicle (1) also includes a device for driving the first screw conveying device (103) and the second screw conveying device (104) a transmission device for rotating materials, the transmission device includes a first sprocket (108) and a first sprocket (108) fixedly connected to the respective main shafts of the first screw conveyor (103) and the second screw conveyor (104) respectively. The second sprocket (109), the transmission ratio between the first sprocket (108) and the second sprocket (109) is according to the volume of the cement box (101) and the gravel box (102) In contrast, the first sprocket (108) and the second sprocket (109) are connected through a chain (110), and the transmission device also includes a rotation output device (107) that drives the screw conveyor to rotate. 3. The concrete conveying and batching device according to claim 2, characterized in that, a lifting jack (106) for lifting one end of the fixed-ratio unloading vehicle (1) is provided on the output side of the screw conveying device. 4. The concrete batching device according to claim 2, characterized in that, the top of the fixed ratio unloading vehicle (1) is provided with a liftable cover plate (111). 5. The concrete batching device according to any one of claims 1 to 4, characterized in that, the stirring feeder (2) includes an upper feed end extending into the receiving device (105). The feeding screw conveyor (21) also includes a position adjustment device (22) arranged at the bottom of the feeding screw conveyor (21), and the feeding screw conveyor (21) passes through the position adjustment device (22) Connect with chassis (23). 6. The concrete batching device according to claim 5, characterized in that, the position adjusting device (22) comprises a vertically arranged between the chassis (23) and the feeding screw conveyor (21). There is a vertical support (221) between the vertical support (221) and the chassis (23), and a rotation adjustment structure for adjusting the horizontal position of the vertical support (221) on the chassis (23) is provided between the vertical support (221) and the chassis (23). 7. The concrete batching device according to claim 6, characterized in that, a horizontal support (222) is also provided between the vertical support (221) and the feeding screw conveyor (21), the The horizontal support (222) is provided with a lead screw screw tube assembly (223) that can be adjusted in length through rotation and expansion. 8. The concrete batching device according to claim 5, characterized in that, the discharge end of the feeding screw conveyor (21) is provided with a rotatable discharge port (24).