Geotechnical test piece manufacturing and demolding all-in-one machine

Abstract

The utility model discloses a geotechnical test piece and workpiece demoulding all-in-one machine, which belongs to the technical field of civil engineering and comprises a support frame body, a plurality of pressure oil cylinders are arranged at the lower end in the support frame body, and the output ends of the pressure oil cylinders are connected with the lower end of a lower pressure rod; a lubricating oil storage tank is arranged at the upper end in the supporting frame body, the upper end of the lower pressure rod penetrates through the lubricating oil storage tank, and a plurality of grooves are formed in the outer surface of the lower pressure rod. The demolding efficiency of the workpiece can be improved, the requirement of a mechanical property test is met, and a plurality of geotechnical test pieces with the same size are formed at a time; and the oil brushing efficiency of the inner surface of the mold can be improved, oil brushing is more uniform, and adhesion during demolding is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil engineering, and in particular relates to a geotechnical specimen making and demoulding integrated machine. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] Civil engineering tests often involve cylindrical specimens, such as concrete specimens, asphalt specimens, mixture specimens, cement-lime-stabilized soil specimens, cement-lime-stabilized granular specimens, etc., as well as geotechnical tests such as soil compaction, soil density, and soil sampling by soil sampler.

[0004] Generally, geotechnical tests require geotechnical specimens with a height of 50 mm and a diameter of 50 mm to explore the mechanical properties of the soil. According to the "Highway Geotechnical Test Regulations", multiple parallel specimens are required for mechanical property tests. Ordinary demoulding machines can only produce one piece at a time, which leads to low demoulding efficiency of geotechnical specimens, and deviations in the size of the pieces produced in multiple times are inevitable. In addition, when making parts, it is necessary to manually move the mold, apply lubricating oil and filter paper. When applying oil, the inner wall of the mold needs to be evenly coated to avoid adhesion. The manual oiling method is inefficient and cannot ensure uniform oiling, which will affect the demoulding of the geotechnical specimens and easily cause adhesion. Utility Model Content

[0005] In view of the above problems, the utility model provides an all-in-one machine for demoulding geotechnical specimens, which can improve the efficiency of demoulding, meet the needs of mechanical properties testing, and form multiple geotechnical specimens of the same size at one time; it can also improve the efficiency of oiling the inner surface of the mold, make the oiling more even, and effectively avoid adhesion during demoulding.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A geotechnical specimen demoulding integrated machine comprises a support frame, wherein a plurality of pressure cylinders are arranged at the lower end of the support frame, and the output ends of the pressure cylinders are connected to the lower ends of lower pressure rods; a lubricating oil storage tank is arranged at the upper end of the support frame, and the upper end of the lower pressure rod passes through the lubricating oil storage tank, and a plurality of grooves are arranged on the outer surface of the lower pressure rod.

[0008] Furthermore, a lifting frame is arranged on the side of the supporting frame, a lifting plate is arranged on the side of the lifting frame, the lifting plate is located above the supporting frame, and an upper pressure rod is arranged at the lower end of the lifting plate.

[0009] Furthermore, a plurality of the lower pressure rods are arranged at intervals, and a plurality of circular holes are arranged on the upper surface of the support frame, and the number of the circular holes is the same as the number of the lower pressure rods.

[0010] Furthermore, a plurality of upper pressure rods are arranged at intervals, and the upper pressure rods are detachably connected to the lifting plate.

[0011] Furthermore, a fixed mold is arranged at the upper end of the support frame, the diameter of the upper pressure rod is the same as the inner diameter of the mold, and the diameter of the lower pressure rod is the same as the inner diameter of the mold.

[0012] Furthermore, the lower end of the upper pressure rod is aligned with the upper end surface of the fixed mold, and the upper end of the lower pressure rod is aligned with the lower end surface of the fixed mold.

[0013] Furthermore, a control panel is provided at the front of the support frame, and the control panel is electrically connected to the pressure cylinder.

[0014] Furthermore, an oil inlet is provided at one end of the lubricating oil storage tank, and the oil inlet is connected to the interior of the lubricating oil storage tank.

[0015] Furthermore, the grooves are arranged in an array on the surface of the lower pressure rod, and the grooves are hexagonal grooves.

[0016] Furthermore, the side of the support frame is fixedly connected to the lifting frame.

[0017] Compared with the prior art, the utility model has the following advantages and positive effects:

[0018] The utility model uses a pressure oil cylinder to raise the lower pressure rod, and drives the upper pressure rod to descend through the lifting plate, so as to compact the sample in the fixed mold and quickly form the geotechnical specimen. In addition, a plurality of upper pressure rods, lower pressure rods and fixed molds are provided, so that multiple geotechnical specimens can be formed at one time, thereby improving the efficiency of demoulding of the product.

[0019] Driven by the pressure oil cylinder and the lifting plate, the utility model has a consistent working stroke of a plurality of upper pressure rods and lower pressure rods, thereby making the compaction degree of the test material consistent and the size of the manufactured geotechnical test pieces consistent, meeting the needs of mechanical property tests and ensuring the accuracy of the test results.

[0020] The utility model arranges a plurality of grooves on the surface of the lower pressure rod. Before the sample is filled into the fixed mold, the lower pressure rod rises and passes through the lubricating oil storage tank. The lubricating oil in the lubricating oil storage tank enters into the grooves and is then driven by the lower pressure rod to the inner surface of the fixed mold, so that the lubricating oil is evenly smeared on the inner surface of the fixed mold, thereby improving the oil brushing efficiency of the inner surface of the mold and effectively avoiding adhesion during demoulding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 This is a front view of the geotechnical specimen demoulding integrated machine of the utility model;

[0023] Figure 2 It is a side view of the geotechnical specimen making and demoulding integrated machine of the utility model;

[0024] Figure 3 It is a structural diagram of the lower pressure rod of the utility model;

[0025] In the figure: 1. lower pressure rod; 101. groove; 2. fixed mold; 3. upper pressure rod; 4. lifting plate; 5. pressure cylinder; 6. lubricating oil storage tank; 7. oil inlet; 8. control panel; 9. support frame; 10. lifting frame. DETAILED DESCRIPTION

[0026] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0027] The following is a detailed description of the utility model with reference to the accompanying drawings. The present embodiment discloses a geotechnical specimen demoulding integrated machine. Figure 1 As shown, it includes a support frame 9, a plurality of pressure cylinders 5 are arranged at the lower end of the support frame 9, and the output end of the pressure cylinder 5 is connected to the lower end of the lower pressure rod 1; a lubricating oil storage tank 6 is arranged at the upper end of the support frame 9, and the upper end of the lower pressure rod 1 passes through the lubricating oil storage tank 6, and a plurality of grooves 101 are arranged on the outer surface of the lower pressure rod 1.

[0028] The pressure cylinder 5 drives the lower pressure rod 1 to rise and fall, and the lower lifting rod plays the role of compaction and oiling. Before filling in the sample, the pressure cylinder 5 is started to drive the lower lifting rod to rise, and the lower lifting rod passes through the lubricating oil storage tank 6, and the lubricating oil in the lubricating oil storage tank 6 is stored in the groove 101, and the lubricating oil is brought to the inner surface of the fixed mold 2 for oiling so that the lubricating oil is evenly coated on the inner surface of the fixed mold 2, thereby improving the oil brushing efficiency of the inner surface of the mold and effectively avoiding adhesion during demoulding.

[0029] like Figure 2As shown, a lifting frame 10 is arranged on the side of the support frame 9, and a lifting plate 4 is arranged on the side of the lifting frame 10. The lifting plate 4 is located above the support frame 9, and an upper pressure rod 3 is arranged at the lower end of the lifting plate 4. The lower end of the upper pressure rod 3 is aligned with the upper end surface of the fixed mold 2, and the upper end of the lower pressure rod 1 is aligned with the lower end surface of the fixed mold 2. The side of the support frame 9 is fixedly connected to the lifting frame 10.

[0030] The upper pressure rod 3 and the lower pressure rod 1 are aligned with the fixed mold 2. After the sample is filled in, the upper pressure rod 3 is directly above the filler and the lower pressure rod 1 is directly below the filler for compaction, so that the geotechnical specimen is quickly formed without the compaction position being skewed.

[0031] The lifting frame 10 includes a linear slide rail arranged on the side, a screw rod is arranged in the slide rail, a slider is sleeved on the screw rod, the end of the screw rod is connected to the output end of the driving motor, and one end of the slider is connected to the lifting plate 4. When in use, the driving motor is started to drive the screw rod to rotate, and the rotation of the screw causes the slider to move up and down, thereby driving the lifting plate 4 to move up and down, and finally driving the upper pressure rod 3 to move up and down.

[0032] Several lower pressure rods 1 are arranged at intervals, and several circular holes are arranged on the upper surface of the support frame 9, and the number of circular holes is the same as the number of lower pressure rods 1. Several upper pressure rods 3 are arranged at intervals, and the upper pressure rods 3 are detachably connected to the lifting plate 4. Several upper pressure rods 3 and lower pressure rods 1 are arranged, and a corresponding number of fixed molds 2 are provided. The pressure cylinder 5 drives several lower pressure rods 1 to rise to the lower end of the fixed mold 2 as a cushion block, and then the lifting plate 4 drives several upper pressure rods 3 to descend at the same time, and the degree of descent is consistent, so that the compaction degree of the sample is consistent, and the size of the manufactured geotechnical specimens is consistent, which meets the requirements of mechanical properties test and ensures the accuracy of the test results.

[0033] The diameter of the circular hole needs to be smaller than the outer diameter of the fixed mold 2. The lower pressure rod 1, the upper pressure rod 3 and the fixed mold 2 can all be set as a detachable structure. According to the test requirements, the sizes of the upper pressure rod 3, the lower pressure rod 1 and the fixed mold 2 can be replaced to produce geotechnical specimens of different sizes, thereby improving applicability.

[0034] A fixed mold 2 is arranged at the upper end of the support frame 9, and the diameter of the upper pressure rod 3 is the same as the inner diameter of the mold, and the diameter of the lower pressure rod 1 is the same as the inner diameter of the mold. The diameters of the upper pressure rod 3 and the lower pressure rod 1 are the same as the inner diameter of the mold so as to leave no gap during compaction and prevent the sample from being squeezed out of the gap.

[0035] A control panel 8 is provided at the front of the support frame 9, and the control panel 8 is electrically connected to the pressure oil cylinder 5. The pressure oil cylinder 5 and the driving motor are controlled by the control panel 8, so that the upper pressure rod 3 and the lower pressure rod 1 are moved, and the molding and demoulding are realized.

[0036] An oil inlet 7 is provided at one end of the lubricating oil storage tank 6, and the oil inlet 7 is connected to the interior of the lubricating oil storage tank 6. The lubricating oil storage tank 6 is used to store lubricating oil, and when the lower pressure rod 1 passes by, the lubricating oil inside is brought out to the inner surface of the fixed mold 2, and the lubricating oil is replenished through the oil inlet 7 when the lubricating oil is insufficient.

[0037] like Figure 3 As shown, the grooves 101 are arranged in an array on the surface of the lower pressure rod 1, and the grooves 101 are hexagonal grooves 101. The grooves 101 are used to store the lubricating oil inside the lower pressure rod 1 when it passes through the lubricating oil storage tank 6, and then the lubricating oil is applied to the inner surface of the fixed mold 2. A plurality of grooves 101 are provided to make the lubricating oil coating more uniform. The shape of the grooves 101 can also be set to a circle or other shapes.

[0038] Directions:

[0039] Under the control panel, the pressure rod 1 is pushed upward, so that the groove 101 drives the lubricating oil in the lubricating oil storage tank 6 to rise upward, completing the oil brushing operation of the fixed mold 2, and then the lower pressure rod 1 is returned to its original position; filter paper is placed at the bottom of the fixed mold 2, and the mixed sample is poured into the fixed mold 2, and the filter paper is also placed above the sample; the lifting plate 4 is controlled to descend, so that the upper pressure rod 3 enters the fixed mold 2 and acts as an upper cushion block; the pressure oil cylinder 5 is controlled to start, so that the lower pressure rod 1 is started to perform the compacting operation; after the product is completed, the lifting plate 4 is controlled to rise, so that the upper pressure rod 3 is separated from the fixed mold 2, and then the lower pressure rod 1 is controlled to continue to rise, and the completed sample is pushed out of the fixed mold 2 to complete the demoulding operation; while the demoulding operation is in progress, the lubricating oil in the groove 101 is evenly spread in the fixed mold 2 through the rise of the lower pressure rod 1, completing the oil brushing step of the next product operation.

[0040] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A geotechnical specimen demoulding integrated machine, characterized in that: It includes a support frame body, wherein a plurality of pressure oil cylinders are arranged at the lower end of the support frame body, and the output end of the pressure oil cylinder is connected to the lower end of the lower pressure rod; a lubricating oil storage tank is arranged at the upper end of the support frame body, and the upper end of the lower pressure rod passes through the lubricating oil storage tank, and a plurality of grooves are arranged on the outer surface of the lower pressure rod.

2. The geotechnical specimen demoulding integrated machine according to claim 1, characterized in that: A lifting frame body is arranged on the side of the supporting frame body, a lifting plate is arranged on the side of the lifting frame body, the lifting plate is located above the supporting frame body, and an upper pressure rod is arranged at the lower end of the lifting plate.

3. The geotechnical specimen demoulding integrated machine according to claim 1, characterized in that: A plurality of the lower pressure rods are arranged at intervals, and a plurality of circular holes are arranged on the upper surface of the support frame, and the number of the circular holes is the same as the number of the lower pressure rods.

4. The geotechnical specimen demoulding integrated machine as claimed in claim 2, characterized in that: A plurality of upper pressure rods are arranged at intervals, and the upper pressure rods are detachably connected to the lifting plate.

5. The geotechnical specimen demoulding integrated machine as claimed in claim 2, characterized in that: A fixed mold is arranged at the upper end of the support frame, the diameter of the upper pressure rod is the same as the inner diameter of the mold, and the diameter of the lower pressure rod is the same as the inner diameter of the mold.

6. The geotechnical specimen demoulding integrated machine as claimed in claim 2, characterized in that: The lower end of the upper pressure rod is aligned with the upper end surface of the fixed mold, and the upper end of the lower pressure rod is aligned with the lower end surface of the fixed mold.

7. The geotechnical specimen demoulding integrated machine according to claim 1, characterized in that: A control panel is arranged at the front of the support frame, and the control panel is electrically connected to the pressure oil cylinder.

8. The geotechnical specimen demoulding integrated machine according to claim 1, characterized in that: An oil inlet is arranged at one end of the lubricating oil storage tank, and the oil inlet is communicated with the interior of the lubricating oil storage tank.

9. The geotechnical specimen demoulding integrated machine according to claim 1, characterized in that: The grooves are arranged in an array on the surface of the lower pressure rod, and the grooves are hexagonal grooves.

10. The geotechnical specimen demoulding integrated machine according to claim 1, characterized in that: The side portion of the supporting frame is fixedly connected to the lifting frame.

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