CN210827480U

CN210827480U - Sealed wet spraying machine

Info

Publication number: CN210827480U
Application number: CN201920837566.8U
Authority: CN
Inventors: 周常武; 殷秋红; 周小琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-06-23
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a sealed wet blasting machine. The spraying device comprises a cylinder body, a bin hopper, a spraying bin and a driving mechanism, wherein a gas inlet and a spraying material outlet are formed in the spraying bin, a piston rod extending into the cylinder body is connected to the driving mechanism, a material pushing assembly and a middle sleeve are installed on the piston rod, aggregate entering the cylinder body through the bin hopper can enter one side of the cylinder body through the middle sleeve at intervals, the piston rod can linearly move in the cylinder body under the driving of the driving mechanism, and therefore the aggregate can enter one spraying bin by means of the material pushing assembly. The advantages are that: the compressed air in the injection bin keeps sealed with the concrete hopper, simultaneous feeding and injection operation are realized, the working efficiency and the uniformity of concrete mixing are greatly improved, the structural design is ingenious, the occupied space is small, the maintenance and the operation are convenient, the construction level and the quality of support are greatly improved, the safety production level is greatly improved, and the construction site environment is greatly improved.

Description

Sealed wet spraying machine

Technical Field

The invention relates to a wet spraying machine, in particular to a sealed (concrete) wet spraying machine.

Background

At present, the international and domestic concrete sprayers mainly have two types, namely dry type spraying and wet type spraying, along with the enhancement of environmental awareness of people and the improvement of the quality requirement of sprayed concrete, the application work of the dry type concrete sprayer is forbidden by most of the national regulations and is basically eliminated, so the application of the concrete wet sprayer is further promoted and promoted, and various concrete wet sprayers are operated, wherein a plurality of types are provided, pressurized water is added into a spraying pipeline on the basis of the original dry type sprayer to enable the concrete wet sprayer to become wet spraying, and the concrete sprayer comprises a double-tank type concrete sprayer, a rotor type concrete sprayer, a spiral type concrete sprayer and the like. The conventional spraying machines have the problems of poor concrete mixing effect, uncontrolled water cement ratio, poor hydration degree and poor adhesive force of concrete spraying on a working surface, higher dust concentration, the concrete taking a motor as power in the conveying process and the like.

Subsequently, a representative push chain type concrete wet spraying machine and a hydraulic piston type concrete wet spraying machine are introduced in the market, which are improved on a concrete conveying pump system, and are mainly characterized in that concrete is conveyed by a motor.

Disclosure of Invention

The invention aims to provide a sealed wet spraying machine which is ingenious in structural design, convenient to maintain and good in sealing performance, so that the stirring effect is improved.

In order to solve the technical problem, the sealed wet spraying machine comprises a cylinder body, a bin hopper arranged at the top of the middle of the sealed cylinder body, two spraying bins symmetrically arranged on the left side and the right side of the cylinder body, and a driving mechanism positioned beside one of the spraying bins, wherein a gas inlet and a spraying material outlet are formed in each spraying bin, a piston rod extending into the cylinder body is connected to the driving mechanism, two groups of material pushing assemblies capable of switching between the two spraying bins and a middle sleeve positioned between the two groups of material pushing assemblies are arranged on the piston rod, aggregate entering the cylinder body through the bin hoppers can enter one side of the cylinder body through the middle sleeve at intervals, and the piston rod can linearly move in the cylinder body under the driving of the driving mechanism, so that the aggregate can enter one of the spraying bins through the material pushing assemblies.

The material pushing assembly comprises a plurality of material pushing discs arranged on the piston rod and fixed shaft sleeves which are arranged among the material pushing discs at intervals and used for compressing and positioning the material returning discs.

The middle sleeve is also positioned and arranged between the two groups of material pushing assemblies through the fixed shaft sleeve.

The circumference surface of pushing away the charging tray is provided with the annular, it has the sealing washer to settle in the annular, be provided with the sealing washer on the circumference surface of the left and right sides of middle cover respectively, pushing away the charging tray and middle cover homoenergetic and through the sealing washer sealed cooperation between the cylinder body.

The feed bin hopper is internally provided with a screen, and the lateral wall of the outer side of the feed bin hopper is provided with a vibrator.

The driving mechanism is a cylinder or a hydraulic cylinder.

And a damping pad is arranged between the hopper and the cylinder body.

The bottom of spraying feed bin is provided with the support, actuating mechanism's bottom is provided with the support, support and support are installed simultaneously on a base.

The invention has the advantages that:

the piston rod which can reciprocate and move linearly in the cylinder body under the driving of the driving mechanism, the two injection bins arranged at two sides of the cylinder body, the material pushing assembly which is arranged on the piston rod and can be switched between the two injection bins and the middle sleeve which is positioned between the two groups of material pushing assemblies are skillfully utilized, so that the linear reciprocating movement of the piston rod is skillfully utilized to drive the material pushing assembly to be switched between the two injection bins, thereby leading the compressed air in the injection bins to keep sealed with the concrete hopper, realizing the simultaneous feeding and injection operation, greatly improving the working efficiency and the uniformity of concrete mixing, in addition, the skillful structural design ensures that the whole equipment occupies small space and is convenient to maintain and operate, and when the driving mechanism is an air cylinder, the air cylinder is particularly suitable for being used in underground explosion-proof places of coal mines, mine tunnels, railway tunnels, road slopes, The construction level and quality of the support are greatly improved in the support construction of the projects such as subways, culverts, hydraulic engineering, building foundations and the like, the safety production level is greatly improved, and the construction site environment is greatly improved.

Drawings

FIG. 1 is a schematic structural view of the pneumatic uterus-sealing wet spraying machine of the utility model;

fig. 2 is the schematic view of the assembly structure of the middle piston of the present invention.

Detailed Description

The pneumatic uterus sealing wet spraying machine of the present invention will be further described in detail with reference to the accompanying drawings and the specific embodiments.

As shown in the figures, the pneumatic uterus sealing wet spraying machine of the utility model comprises a cylinder body 16, a bin hopper 14 arranged at the top in the middle of the cylinder body, two spraying bins 10 symmetrically arranged at the left and right sides of the cylinder body and a driving mechanism 20 arranged at the side of one of the spraying bins, wherein the bin hopper 14 is arranged at the top in the middle of the sealed cylinder body so that the bin hopper 14 is just opposite to the middle part of the sealed cylinder body, the spraying bin 10 comprises a bin body and connecting flanges arranged at the two sides of the bin body, the top of the bin body of the spraying bin 10 is provided with a gas inlet 11, the bottom of the bin body is provided with a spraying material outlet 2, the connecting flange at one side of the bin body is connected with a flange cover plate 5, the two sides of the cylinder body 16 are provided with mounting flanges, the other side of the bin body is connected with the mounting flanges on the cylinder body, the driving mechanism 20 is connected with a piston rod 18 extending into the cylinder body, the piston rod 18 is provided with two groups of pushing components 4 capable of switching between two injection bins and a middle sleeve 3 positioned between the two groups of pushing components, specifically, the piston rod is connected to an output shaft of the driving mechanism 20 through a connecting sleeve 19, the piston rod passes through a side plate of the injection bin and extends into the cylinder body, a sealing ring for sealing the piston rod is arranged on the side plate of the injection bin, in addition, the front section of the piston rod is arranged to be a small-diameter section with the diameter smaller than that of the piston rod, a limiting step is inevitably formed between the small-diameter section and the piston rod, for the pushing components 4, each pushing component 4 is composed of a plurality of pushing disks 9 and fixed shaft sleeves 8 arranged among the pushing disks at intervals, and during installation, the two groups of pushing components are required, in the embodiment, each group of pushing assemblies is provided with three pushing discs, so that the sprayed concrete is more uniform; when the device is installed, the material pushing discs and the fixed shaft sleeves in the right group of material pushing assemblies are sequentially sleeved on the small-diameter section of the piston rod, so that the rightmost material pushing disc is pressed against the step surface (a pressing ring can be arranged on the step surface), the rest material pushing discs are positioned by the fixed shaft sleeves, the fixed shaft sleeves are also pressed outside the leftmost material pushing disc in the right group of material pushing assemblies after the device is installed, the middle sleeve 3 is positioned and installed by the fixed shaft sleeves, the left material pushing assemblies are sequentially installed, of course, the fixed shaft sleeves are also installed between the left material pushing assemblies and the middle sleeve 3 for positioning, after the device is installed, the two groups of material pushing assemblies and the middle sleeve 3 are locked and fixed by the locking nuts 7, aggregate entering the cylinder body through the bin hopper 14 can enter one side of the cylinder body through the middle sleeve at sealed intervals, and the piston rod 18 can linearly move in the cylinder body under, therefore, aggregate enters one of the injection bins by utilizing the pushing assembly, and the aim of feeding the aggregate in the pushing disc group by one of two ends of the middle sleeve 3 and injecting the aggregate in the injection bins by the other side is fulfilled in the full-stroke reciprocating movement of the piston rod.

Furthermore, the circumferential surface of the material pushing disc 9 is provided with ring grooves, each ring groove is internally provided with a sealing ring, the circumferential surfaces of the left side and the right side of the middle sleeve 3 are respectively provided with a sealing ring, the material pushing disc 9 and the middle sleeve 3 can be in sealing fit with the cylinder body through the sealing rings, and the compressed air in the injection bin 10 is kept sealed with the concrete bin hopper in the full-stroke reciprocating movement of the piston rod through the sealing fit between the sealing rings arranged on the material pushing disc 9 and the middle sleeve 3 and the cylinder body; a screen 13 is arranged in the hopper 14, a vibrator 12 is arranged on the outer side wall of the hopper 14,

the vibrator 12 is preferably a pneumatic vibrator, the pneumatic vibrator screens the mixed concrete to screen out aggregates or foreign matters larger than the requirement, and the pneumatic vibration installed on the bin hopper makes the concrete not easy to block and can be quickly filled with the pushing assembly, in addition, a shock pad 15 is installed between the bin hopper 14 and the cylinder body 16, and the rubber shock absorber 15 absorbs the shock kinetic energy of the pneumatic vibrator to basically eliminate the influence of the shock on the machine body; the driving mechanism 20 is an air cylinder or a hydraulic cylinder, especially when the driving mechanism 20 is selected as the air cylinder, the pneumatic vibrator and the injection bin 10 all use compressed air as an air source to enable the air cylinder, the pneumatic vibrator and the injection bin to become a pure pneumatic wet spraying machine, the whole process enables concrete not to be easily blocked and can be quickly filled with a material pushing assembly, and the pneumatic wet spraying machine is particularly suitable for being used in a construction site with explosion-proof requirements under a coal mine well, moreover, the bottom of the injection bin 10 is provided with a support, the bottom of the driving mechanism is provided with a support, the support and the support are simultaneously arranged on a base,

the working principle is as follows:

the concrete material (artificial or commercial concrete) mixed according to the requirement is fed into a hopper 14, after being screened by a hopper screen 13, the large aggregate or foreign matter which does not meet the requirement is prevented from entering the hopper, the concrete material rapidly falls under the vibration action of a pneumatic vibrator 12 and is rapidly filled in a cavity formed by a cylinder body assembly 17 and a material pushing assembly, when the piston stroke of a cylinder 20 carries out forward pushing movement, the piston rod 18 is connected with the piston rod through a movable connecting sleeve 19 to drive the material pushing assembly to push, in the continuous pushing process, the cylinder body 16 and the material pushing assembly form a dynamic closed concrete sealing structure, the concrete in the material pushing assembly sequentially enters an injection bin 10 one by one along with the continuous pushing of the cylinder, the concrete material is rapidly injected to a discharge port under the action of compressed air, meanwhile, the other end symmetrical to an excessive sleeve 3 is fed, after the pushing stroke of the cylinder 20 is finished, the return stroke principle is the same as the principle, and after the return stroke is finished, a cycle is completed, and the continuous-speed uniform concrete spraying is realized along with the reciprocating movement of the cylinder.

Claims

1. A sealed wet spraying machine is characterized in that: comprises a cylinder body (16), a bin hopper (14) arranged at the top of the middle of the cylinder body, two injection bins (10) symmetrically arranged at the left side and the right side of the cylinder body and a driving mechanism (20) positioned at the side of one injection bin, the injection bin (10) is provided with a gas inlet (11) and an injection material outlet (2), the driving mechanism (20) is connected with a piston rod (18) extending into the cylinder body, two groups of material pushing assemblies (4) capable of switching between the two jetting bins and a middle sleeve (3) positioned between the two groups of material pushing assemblies are arranged on the piston rod (18), the aggregate entering the cylinder body through the hopper (14) can enter one side of the cylinder body through the middle sleeve at intervals, the piston rod (18) can move linearly in the cylinder body under the driving of the driving mechanism, so that the aggregate enters one of the injection bins by utilizing the pushing component.

2. The sealed wet sprayer of claim 1, wherein: the material pushing assembly (4) comprises a plurality of material pushing discs (9) arranged on the piston rod and fixed shaft sleeves (8) which are arranged among the material pushing discs at intervals and used for compressing and positioning the material pushing discs.

3. The sealed wet sprayer of claim 2, wherein: the middle sleeve (3) is also positioned and arranged between the two groups of pushing assemblies (4) through the fixed shaft sleeve.

4. A sealed wet blasting machine according to claim 2 or 3, wherein: the circumference surface of pushing away charging tray (9) is provided with the annular, it has the sealing washer to settle in the annular, be provided with the sealing washer on the circumference surface of the left and right sides of middle cover (3) respectively, push away charging tray (9) and middle cover (3) homoenergetic and through the sealing washer sealed cooperation between the cylinder body.

5. The sealed wet blasting machine of claim 4, wherein: a screen (13) is arranged in the hopper (14), and a vibrator (12) is arranged on the lateral wall of the outer side of the hopper (14).

6. The sealed wet sprayer of claim 1, 2, 3 or 5, wherein: the driving mechanism (20) is a cylinder or a hydraulic cylinder.

7. The sealed wet sprayer of claim 6, wherein: and a damping pad (15) is arranged between the hopper (14) and the cylinder body (16).

8. The sealed wet sprayer of claim 7, wherein: the bottom of the injection storage bin (10) is provided with a support, the bottom of the driving mechanism is provided with a support, and the support are simultaneously installed on one base (1).