Closure model test closure gap closure automatic sand adding device

Abstract

The utility model relates to the technical field of hydraulic model tests, and discloses a closure model test closure gap closure automatic sand adding device which comprises two symmetrically-arranged fixed guide rails, the inner walls of the fixed guide rails are fixedly connected with fixed round rods, and the fixed round rods are movably sleeved with a transverse moving frame; a same extension frame is fixedly connected between the two transverse moving frames, two sliding sleeve rods symmetrically sleeve the extension frame in a sliding mode, telescopic rods are welded to the upper sides of the two ends of the sliding sleeve rods, force bearing blocks are fixedly connected to the upper ends of the telescopic rods, and a same sand container is fixedly connected among the four force bearing blocks. The sand container can flexibly move in all directions in the transverse direction, the longitudinal direction and the vertical direction at the embankment position of the closure model, so that the position and the height of the sand outlet hopper can be adjusted, closure sand accurately reaches the needed throwing position, and compared with traditional manual throwing actions, labor force is saved, and working efficiency is greatly improved.

Description

Technical Field

[0001] The present application belongs to the technical field of hydraulic model tests, and in particular relates to an automatic sand-adding device for closing the closure mouth of a closure model test. Background Art

[0002] The construction of the interception project requires an interception model test. In order to ensure the similarity between the interception model test and the actual project, it is important to ensure that the average casting intensity during the interception test is similar to that at the interception site.

[0003] In the current interception model test, there is no dedicated interception and sand adding equipment, and the test is mainly carried out by manual throwing. The throwing intensity of the interception sand is greatly affected by manual labor, which can easily increase the parameter error of the hydraulic elements of the interception model test. At the same time, this method requires the test personnel to participate in the throwing and adding sand throughout the process, which has the defects of wasting manpower and low work efficiency. Utility Model Content

[0004] The utility model aims to solve the above problems and proposes an automatic sand-adding device for closing the closure mouth of a cut-off model test.

[0005] In order to achieve the above purpose, this application adopts the following technical solutions:

[0006] The invention discloses an automatic sand-adding device for closing a long-mouth of a closure model test, comprising two symmetrically arranged fixed guide rails, wherein the inner wall of the fixed guide rails is fixedly connected with a fixed round rod, a lateral movable frame is movably sleeved outside the fixed round rod, the same extension frame is fixedly connected between the two lateral movable frames, two sliding sleeve rods are symmetrically and slidably sleeved outside the extension frame, telescopic rods are welded to the upper sides of both ends of the sliding sleeve rods, the upper end of the telescopic rod is fixedly connected with a load-bearing block, and the same sand container is fixedly connected between the four load-bearing blocks.

[0007] Preferably, the sand container comprises a rectangular sand box, the lower end of which is integrally connected with a sand feeding hopper, a spiral sand feeder is fixedly mounted at the lower end of the sand feeding hopper, and a rectangular groove connected to the upper end of the spiral sand feeder is provided at the lower end of the sand feeding hopper.

[0008] Preferably, the spiral sand feeder includes a conveying cylinder, a rotating shaft is rotatably connected inside the conveying cylinder, a rotating motor for driving the rotating shaft to rotate is fixedly installed at one end of the conveying cylinder, spiral blades are welded on the shaft wall of the rotating shaft, a rectangular sand outlet hopper is fixedly connected to the lower side of one end of the conveying cylinder, and a sand outlet port is opened at the lower end of the sand outlet hopper.

[0009] Preferably, the four bottom corners of the fixed guide rail are fixedly connected to a fixed base.

[0010] Preferably, a transverse groove for the transverse moving frame to penetrate and extend is formed at the upper end of the fixed guide rail, and the transverse moving frame is slidably connected in the transverse groove.

[0011] Preferably, a lubricating coating is sprayed on the rod wall of the fixed round rod.

[0012] Compared with the prior art, the present application provides a closure automatic sand adding device for a closure of a diversion tunnel model test, which has the following beneficial effects:

[0013] 1. For the closure automatic sand adding device for the closure of the diversion tunnel model test, through the arranged fixed guide rail, fixed round rod, transverse moving frame, sliding sleeve rod and telescopic rod, the sand container can move flexibly in all directions of horizontal, vertical and vertical directions at the position of the cofferdam of the diversion tunnel model, so as to adjust the position and height of the sand discharge hopper, and make the intercepted sand accurately reach the required throwing position. Compared with the traditional manual throwing action, it not only saves labor, but also greatly improves the work efficiency.

[0014] 2. For the closure automatic sand adding device for the closure of the diversion tunnel model test, through the provided rotary motor with adjustable speed, by accurately controlling the speed of the rotary motor, the throwing intensity per unit time can be ensured to be similar to that of the closure site, realizing automatic sand adding of the equipment, reducing the test error at the same time, and effectively improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic three-dimensional structure diagram of a closure automatic sand adding device for a closure of a diversion tunnel model test proposed by the present application;

[0016] Figure 2 is a schematic semi-sectional structure diagram of a fixed guide rail of a closure automatic sand adding device for a closure of a diversion tunnel model test proposed by the present application;

[0017] Figure 3 is a schematic semi-sectional structure diagram of a screw sand feeder of a closure automatic sand adding device for a closure of a diversion tunnel model test proposed by the present application.

[0018] In the figure: 1. Fixed guide rail; 2. Fixed round rod; 3. Transverse moving frame; 4. Extension frame; 5. Sliding sleeve rod; 6. Telescopic rod; 7. Load-bearing block; 8. Sand container; 9. Screw sand feeder; 10. Transverse groove; 11. Fixed base; 12. Rectangular sand box; 13. Sand inlet hopper; 14. Rectangular groove; 15. Rotary motor; 16. Rotating shaft; 17. Screw blade; 18. Conveying cylinder; 19. Sand discharge hopper; 20. Sand discharge port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0020] Reference Figures 1-3 , an automatic sand-adding device for the closure model test of the longkou, comprises two symmetrically arranged fixed guide rails 1, the inner wall of the fixed guide rail 1 is fixedly connected with a fixed round rod 2, a lateral moving frame 3 is movably sleeved outside the fixed round rod 2, the lateral moving frame 3 is pushed to drive the extension frame 4 to move laterally on the axis of the dike, so as to adjust the lateral position of the sand outlet 20, the same extension frame 4 is fixedly connected between the two lateral moving frames 3, two sliding sleeve rods 5 are symmetrically slidably sleeved outside the extension frame 4, so that the sliding sleeve rod 5 can move longitudinally on the axis of the dike, so as to adjust the longitudinal position of the sand outlet 20, telescopic rods 6 are welded on the upper sides of both ends of the sliding sleeve rod 5, driving the sand container 8 to move vertically, so as to control the sand outlet 20 to be in the casting position vertically, the upper end of the telescopic rod 6 is fixedly connected with a load-bearing block 7, and the same sand container 8 is fixedly connected between the four load-bearing blocks 7.

[0021] The sand container 8 includes a rectangular sand box 12, the lower end of which is integrally connected with a sand feeding hopper 13, the lower end of which is fixedly provided with a spiral sand feeder 9, and the lower end of the sand feeding hopper 13 is provided with a rectangular groove 14 which is connected with the upper end of the spiral sand feeder 9.

[0022] The spiral sand feeder 9 includes a conveying cylinder 18, in which a rotating shaft 16 is rotatably connected. A rotating motor 15 for driving the rotating shaft 16 to rotate is fixedly installed at one end of the conveying cylinder 18. A spiral blade 17 is welded on the shaft wall of the rotating shaft 16. A rectangular sand outlet hopper 19 is fixedly connected to the lower side of one end of the conveying cylinder 18. A sand outlet 20 is provided at the lower end of the sand outlet hopper 19. After the intercepted sand enters the head end of the conveying cylinder 18 of the spiral sand feeder 9 from the sand inlet hopper 13, it is rotated and pushed by the spiral blade 17, and is horizontally conveyed to the sand outlet hopper 19 in the cylindrical conveying cylinder 18, and is thrown from the sand outlet 20 to the throwing position of the dragon mouth of the dike.

[0023] The four corners of the bottom of the fixed guide rail 1 are fixedly connected with fixed bases 11, and the fixed bases 11 are used to fix the position of the fixed guide rail 1.

[0024] A transverse groove 10 for the transverse moving frame 3 to extend through is formed at the upper end of the fixed guide rail 1 , and the transverse moving frame 3 is slidably connected in the transverse groove 10 .

[0025] The rod wall of the fixed round rod 2 is sprayed with a lubricating coating.

[0026] The operating principle of the utility model is now described as follows:

[0027] When the present application is used, the fixed guide rail 1 is horizontally mounted parallel to the axis of the dike of the interception model, and the fixed base 11 fixes the position of the fixed guide rail 1. By pushing the lateral movable frame 3 to slide horizontally on the fixed round rod 2 installed on the inner wall of the two ends of the cavity of the fixed guide rail 1, the extension frame 4 is driven to move horizontally on the axis of the dike to adjust the horizontal position of the sand outlet 20;

[0028] The sliding sleeve rod 5 is slidably sleeved outside the extension frame 4, so that the sliding sleeve rod 5 can move longitudinally along the axis of the dike to adjust the longitudinal position of the sand outlet 20;

[0029] The telescopic rod 6 is stretched and contracted in the vertical direction, driving the sand container 8 to move vertically, thereby controlling the sand outlet 20 to be located in the casting position in the vertical direction;

[0030] The rectangular sand box 12 above the sand container 8 is filled with intercepted sand. Through the action of gravity, the intercepted sand enters the head end of the conveying cylinder 18 of the spiral sand feeder 9 from the sand inlet hopper 13 through the rectangular groove 14. The rotating shaft 16 is driven to rotate by controlling the rotating motor 15, thereby driving the spiral blades 17 welded on the rotating shaft 16 to rotate in the cylindrical conveying cylinder 18. The spiral blades 17 generate a rotating driving force, and the intercepted sand is horizontally transmitted to the sand outlet hopper 19 in the conveying cylinder 18, and is thrown from the sand outlet 20 to the throwing position of the dragon mouth of the dike. The sand delivery rate is further controlled by adjusting the speed of the rotating motor 15 to ensure that the throwing intensity is similar to that of the interception site, thereby improving the efficiency and accuracy of the test.

[0031] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. An automatic sand-adding device for closing the closure mouth of a closure model test, comprising two symmetrically arranged fixed guide rails (1), characterized in that: The inner wall of the fixed guide rail (1) is fixedly connected to a fixed round rod (2), a lateral movable frame (3) is movably sleeved outside the fixed round rod (2), a same extension frame (4) is fixedly connected between two lateral movable frames (3), two sliding sleeve rods (5) are symmetrically slidably sleeved outside the extension frame (4), telescopic rods (6) are welded to the upper sides of both ends of the sliding sleeve rods (5), a load-bearing block (7) is fixedly connected to the upper end of the telescopic rod (6), and a same sand container (8) is fixedly connected between the four load-bearing blocks (7).

2. The automatic sand-adding device for closing the closure model test according to claim 1 is characterized in that: The sand container (8) comprises a rectangular sand box (12), the lower end of the rectangular sand box (12) being integrally connected with a sand feeding hopper (13), the lower end of the sand feeding hopper (13) being fixedly provided with a spiral sand feeder (9), and the lower end of the sand feeding hopper (13) being provided with a rectangular groove (14) which is connected to the upper end of the spiral sand feeder (9).

3. The automatic sand-adding device for closing the closure model test according to claim 2 is characterized in that: The spiral sand feeder (9) comprises a conveying cylinder (18), a rotating shaft (16) being rotatably connected inside the conveying cylinder (18), a rotating motor (15) for driving the rotating shaft (16) to rotate is fixedly mounted on one end of the conveying cylinder (18), a spiral blade (17) is welded on the shaft wall of the rotating shaft (16), a rectangular sand outlet hopper (19) is fixedly connected to the lower side of one end of the conveying cylinder (18), and a sand outlet (20) is provided at the lower end of the sand outlet hopper (19).

4. The automatic sand-adding device for closing the closure model test according to claim 3 is characterized in that: The four corners at the bottom of the fixed guide rail (1) are fixedly connected to fixed bases (11).

5. The automatic sand-adding device for closing the closure model test according to claim 4 is characterized in that: The upper end of the fixed guide rail (1) is provided with a transverse groove (10) for the transverse movable frame (3) to extend through, and the transverse movable frame (3) is slidably connected in the transverse groove (10).

6. The automatic sand-adding device for closing the closure model test according to claim 5 is characterized in that: A layer of lubricating coating is sprayed on the rod wall of the fixed round rod (2).

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