Novel high-precision and high-rigidity electric servo pressure testing machine

Abstract

The utility model relates to the technical field of electric servo pressure testing machines, in particular to a novel high-precision and high-rigidity electric servo pressure testing machine which comprises an operating table, supporting legs are installed at the corners of the bottom of the operating table, a top plate is arranged above one end of the operating table in parallel, supporting columns are installed at the corners of the bottom of the top plate, and the supporting legs are connected with the supporting columns. The supporting column is vertically fixed on the operation table; a side plate is arranged between every two adjacent supporting columns, the side faces of the side plates are connected with the supporting columns, the tops of the side plates are fixed to the top plate, the bottoms of the side plates are fixed to the operation table, and a sealing door is installed on one side plate. And a pressing block is arranged below the top plate. When the novel high-precision and high-rigidity electric servo pressure testing machine is used, the four limiting blocks are used for limiting the four side surfaces of blocky concrete, so that the blocky concrete is enabled to be aligned with the pressing block, and the blocky concrete is prevented from shifting and sliding when being stressed, so that the test precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric servo pressure testing machines, in particular to a novel high-precision and high-rigidity electric servo pressure testing machine. Background Art

[0002] The electric servo pressure testing machine is a kind of testing equipment used to test the compressive properties of various materials. It mainly measures the critical pressure by driving the pressure plate to crush the sample on the pressure plate. Currently, during concrete production, workers will use the electric servo pressure testing machine to test the compressive value of concrete. First, the concrete will be made into blocks, and then the blocks of concrete will be placed on the operating table and pressurized until the blocks of concrete break. The pressure value measured at this time is usually the critical compressive value of the concrete.

[0003] However, when pressure is applied to block concrete, the block concrete may shift due to its low surface flatness or the deviation between its center of gravity and the pressure position of the hydraulic mechanism, causing errors in its detection structure. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a new type of high-precision, high-steelness electric servo pressure testing machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: design a new type of high-precision, high-rigidity electric servo pressure testing machine, including an operating table, and support legs are installed at the bottom corners of the operating table, characterized in that: a top plate is arranged parallel above one end of the operating table, and support columns are installed at the bottom corners of the top plate, and the support columns are vertically fixed on the operating table;

[0006] A side panel is arranged between two adjacent support columns, the side surface of the side panel is connected to the support column, the top of the side panel is fixed to the top panel, and the bottom of the side panel is fixed to the operating table, and a sealed door is installed on one of the side panels;

[0007] A pressure block is provided below the top plate, a first hydraulic cylinder is connected to the top of the pressure block, the first hydraulic cylinder is vertically fixed on the top of the top plate, a base is provided below the pressure block, the base is installed on the top of the operating table, a bearing plate is provided above the base, a pressure sensor is provided in the middle of the lower part of the bearing plate, and the pressure sensor is fixed on the base;

[0008] Four equally spaced limit blocks are provided on the upper side of the load-bearing plate. The limit blocks are elastic rubber blocks, and one end of the limit blocks away from the placement table is installed on a mounting seat. The mounting seat is connected to the second hydraulic cylinder, and the second hydraulic cylinder is vertically fixed to the side plate and the sealing door through a mounting frame.

[0009] The utility model also comprises a hydraulic station, which is arranged below the operating table and fixed on a first fixing frame, the first fixing frame is fixed to the operating table, and the hydraulic station is respectively connected with the first hydraulic cylinder and the second hydraulic cylinder.

[0010] Preferably, a plurality of guide seats arranged at intervals are provided along the top edge of the base, a guide shaft is built into the guide seat, and the top of the guide shaft is fixed to the bearing plate.

[0011] Preferably, at least one first guide rod is provided in parallel on the side of the first hydraulic cylinder, the bottom of the first guide rod is fixed on the pressure block, and the top of the first guide rod slides through the top plate.

[0012] Preferably, at least one second guide rod is provided in parallel on the side of the second hydraulic cylinder, one end of the second guide rod is fixed on the mounting seat, and the other end of the second guide rod slides through the mounting frame.

[0013] Preferably, an inclined plate arranged obliquely downward is installed along the edge of the bearing plate.

[0014] Preferably, a display is provided at one end of the top of the operating table away from the top plate, and a control box is provided below the operating table. A controller is provided in the control box, and the controller is respectively connected to the display, the hydraulic station, and the pressure sensor through wires. The control box is mounted on a second fixed frame, and the second fixed frame is fixed to the operating table.

[0015] Preferably, a first cross-flow fan is provided on a side of the lower side of the top plate away from the sealing door, the first cross-flow fan is fixed to the top plate through a connecting frame, and an air outlet of the first cross-flow fan corresponds to the top surface of the placement table, and the first cross-flow fan is connected to the controller through a wire;

[0016] A second cross flow fan is provided on the top of the operating table away from the sealing door. The second cross flow fan is fixed on the side panel and corresponds to the top surface of the operating table. The second cross flow fan is connected to the controller through a wire.

[0017] The design scheme proposed by the utility model has the following beneficial effects during application:

[0018] 1. This new type of high-precision, high-rigidity electric servo pressure testing machine uses the second hydraulic cylinder to push the limit block close to the block concrete and against its side, thereby limiting and clamping the block concrete, which not only ensures the alignment of the block concrete and the pressure block, but also prevents the block concrete from shifting and sliding during the pressing process of the pressure block, thereby improving the accuracy of the test.

[0019] 2. This new type of high-precision, high-rigidity electric servo pressure testing machine uses the first cross-flow fan to blow the debris generated from the bearing plate after the block concrete collapses, preventing the debris from remaining on the bearing plate and affecting subsequent tests.

[0020] 3. This new type of high-precision, high-rigidity electric servo pressure testing machine improves the force strength of the pressure block connection position and the limit block connection position through the guiding effect of the guide rod on the hydraulic cylinder drive, thereby improving the rigidity of the pressure block and the limit block. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 It is a front view of the utility model;

[0023] Figure 3 It is a top view of the utility model;

[0024] Figure 4 It is a side view of the utility model;

[0025] Figure 5 The structure of the utility model is shown in FIG. Figure 2 .

[0026] In the figure: 1. operating table; 2. top plate; 3. support column; 4. side plate; 5. sealing door; 6. first hydraulic cylinder; 7. pressure block; 8. first guide rod; 9. base; 10. bearing plate; 11. pressure sensor; 12. guide shaft; 13. guide seat; 14. inclined plate; 15. second hydraulic cylinder; 16. mounting seat; 17. limit block; 18. mounting frame; 19. second guide rod; 20. first cross flow fan; 21. connecting frame; 22. second cross flow fan; 23. hydraulic station; 24. first fixed frame; 25. control box; 26. second fixed frame; 27. display; 28. keyboard; 29. ​​mouse; 30. supporting leg. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figure 1-Figure 5 A new type of high-precision, high-rigidity electric servo pressure testing machine includes an operating table 1, support legs 30 are installed at the bottom corners of the operating table 1, a top plate 2 is arranged above one end of the operating table 1 in parallel, support columns 3 are installed at the bottom corners of the top plate 2, and the support columns 3 are vertically fixed on the operating table 1;

[0029] A side panel 4 is arranged between two adjacent support columns 3, the side surface of the side panel 4 is connected to the support column 3, the top of the side panel 4 is fixed to the top panel 2, and the bottom of the side panel 4 is fixed to the operating table 1, and a sealing door 5 is installed on one of the side panels 4, so that an independent chamber for pressure testing the block concrete is formed between the side panel 4 and the top panel 2, which can prevent debris from splashing when the block concrete collapses; in actual use, an opening is opened on one of the side panels 4, one side of the sealing door 5 is hinged to the side surface of the opening, and the other side of the sealing door 5 is connected to the side panel 4 through a lock, so that after the sealing door 5 is opened, the block concrete can be taken and placed; the side panels 4 are all transparent tempered glass.

[0030] like Figure 2 As shown, a pressure block 7 is provided below the top plate 2, and a first hydraulic cylinder 6 is connected to the top of the pressure block 7, and the first hydraulic cylinder 6 is vertically fixed on the top of the top plate 2. A placement table is correspondingly provided below the pressure block 7, and the placement table is installed on the operating table 1, wherein the placement table includes a base 9, and the base 9 is fixed on the top of the operating table 1, and a bearing plate 10 is provided above the base 9, and a pressure sensor 11 is provided in the middle of the lower part of the bearing plate 10, and the pressure sensor 11 is fixed on the base 9;

[0031] like Figure 3 As shown, four equally spaced limit blocks 17 are provided on the upper side of the bearing plate 10. The limit blocks 17 are elastic rubber blocks, and one end of the limit blocks 17 away from the placement table is installed on the mounting seat 16. The mounting seat 16 is connected to the second hydraulic cylinder 15, and the second hydraulic cylinder 15 is vertically fixed to the side plate 4 and the sealing door 5 through the mounting frame 18. After the block concrete is placed on the placement table, the second hydraulic cylinder 15 pushes the limit block 17 against the side of the block concrete, so that the block concrete can be pushed to a position aligned with the pressure block 7 to ensure the effect of the falling action of the pressure block 7. Then the first hydraulic cylinder 6 pushes the pressure block 7 downward to squeeze and crush the block concrete. Due to the setting of the pressure sensor 11, data collection will be performed once when the block concrete is placed on the bearing plate 10, and data collection will be performed during the action of the pressure block 7 on the block concrete, so as to obtain the compressive resistance of the block concrete. During the test, the limit block 17 always presses against the side of the block concrete, thereby effectively preventing the block concrete from sliding and shifting when subjected to force.

[0032] In order to improve the stability of the supporting plate 10 on the base 9, Figure 4As shown, a plurality of guide seats 13 are arranged at intervals along the top edge of the base 9, and a guide shaft 12 is built into the guide seat 13. The top of the guide shaft 12 is fixed to the bearing plate 10 to limit the movement of the bearing plate 10 to prevent the bearing plate 10 from being displaced when it is compressed by the block concrete or moves under the action of the limit block 17, thereby affecting the pressure detection of the pressure sensor 11.

[0033] The utility model further includes a hydraulic station 23, which is arranged below the operating table 1 and fixed on a first fixing frame 24, which is fixed to the operating table 1. The hydraulic station 23 is respectively connected to the first hydraulic cylinder 6 and the second hydraulic cylinder 15 to provide power for the operation of the hydraulic cylinders. The hydraulic station 23 also has another installation method, that is, Figure 5 As shown, the hydraulic station 23 is installed at one end of the operating platform 1 away from the side plate 4. In this way, the hydraulic station 23 is placed on the operating platform 1, which makes the location of the hydraulic station 23 more convenient for maintenance and repair.

[0034] Specifically, Figure 1 As shown, a display 27 is provided at one end of the top of the operating table 1 away from the top plate 2, and a control box 25 is provided below the operating table 1. A controller is provided in the control box 25, and the controller is respectively connected to the display 27, the hydraulic station 23, and the pressure sensor 11 through wires. The control box 25 is installed on a second fixing frame 26, and the second fixing frame 26 is fixed to the operating table 1. In actual use, a mouse 29 and a keyboard 28 are also provided on the operating table 1. The operator can sit in front of the display 27 to control the hydraulic cylinder and observe the test data; the controller is one of a control host, a PLC controller, and a control main board.

[0035] When in use, the operator opens the sealing door 5, places the block concrete on the bearing plate 10 and closes the sealing door 5. Then the operator can sit in front of the display 27, operate the mouse 29 and the keyboard 28 to control the second hydraulic cylinder 15, so that the limit block 17 pushes the block concrete to align it with the pressure block 7. At this time, the operator can observe the position of the block concrete through the transparent side panel 4 for the purpose of alignment. After alignment, the operator can drive the first hydraulic cylinder 6 to operate, so that the pressure block 7 rests on the top of the block concrete, and then the block concrete is cracked under the continuous downward pressure of the pressure block 7. During the whole process, the pressure sensor 11 will send all the force values ​​on the bearing plate 10 to the controller, and the display will display them on the display 27. The operator can directly observe the test data from the display 27 and analyze them.

[0036] Further, such as Figure 2 and Figure 4As shown, a first cross-flow fan 20 is provided on the side below the top plate 2 away from the sealing door 5. The first cross-flow fan 20 is fixed to the top plate 2 by a connecting frame 21, and an air outlet of the first cross-flow fan 20 corresponds to the top surface of the placement table. The first cross-flow fan 20 is connected to the controller by a wire. After the block concrete is broken and its large pieces of residue are taken out, the first cross-flow fan 20 can be turned on to make the small particles of debris remaining on the supporting plate 10 fall down, so as to prevent the debris remaining on the supporting plate 10 from affecting the placement of the block concrete required for subsequent tests.

[0037] In order to reduce the workload of operators in cleaning debris, a second cross-flow fan 22 is provided on the top side of the operating table 1 away from the sealing door 5. The second cross-flow fan 22 is fixed on the side panel 4, and the second cross-flow fan 22 corresponds to the top surface of the operating table 1. The second cross-flow fan 22 is connected to the controller through a wire. After the test is completed, the second cross-flow fan 22 can be turned on to blow the debris falling around the base 9 out of the operating table 1. At this time, a collection bag or other storage device can be taken and placed in the opening position of the side panel 4, so that the debris blown out of the operating table 1 can be collected in the collection bag under the blowing of the cross-flow fan.

[0038] It should be noted that in order to prevent the debris of the block concrete from falling between the bearing plate 10 and the base 9 when it collapses, thereby affecting the use of the pressure sensor 11 or the movement of the guide shaft 12, an inclined plate 14 is installed along the edge of the bearing plate 10 and is tilted downward to block the gap between the bearing plate 10 and the base 9 to prevent debris from entering the gap between the two.

[0039] It should be further explained that in order to improve the lifting stability of the pressing block 7, Figure 1 and Figure 2 As shown, at least one first guide rod 8 is provided in parallel on the side of the first hydraulic cylinder 6, the bottom of the first guide rod 8 is fixed on the pressure block 7, and the top of the first guide rod 8 slides through the top plate 2, providing a guide for the lifting and lowering of the pressure block 7, thereby ensuring that the pressure block 7 is always lifted and lowered in the same straight line direction, and also improving the rigidity of the connection position between the pressure block 7 and the first hydraulic cylinder 6.

[0040] like Figure 2 and Figure 3 As shown, at least one second guide rod 19 is provided parallel to the side of the second hydraulic cylinder 15, one end of the second guide rod 19 is fixed on the mounting seat 16, and the other end of the second guide rod 19 slides through the mounting frame 18, which not only provides support strength for the limit block 17, but also provides a guiding effect for the movement of the limit block 17, and also improves the rigidity of the connection position between the mounting seat 16 and the second hydraulic cylinder 15.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new type of high-precision, high-rigidity electric servo pressure testing machine, comprising an operating table (1), wherein support legs (30) are installed at the bottom corners of the operating table (1), and the characteristics are: A top plate (2) is arranged parallel to and above one end of the operating table (1), support columns (3) are installed at the bottom corners of the top plate (2), and the support columns (3) are vertically fixed on the operating table (1); A side panel (4) is provided between two adjacent support columns (3), the side surface of the side panel (4) is connected to the support column (3), the top of the side panel (4) is fixed to the top panel (2), and the bottom of the side panel (4) is fixed to the operating table (1), and a sealing door (5) is installed on one of the side panels (4); A pressure block (7) is provided below the top plate (2), a first hydraulic cylinder (6) is connected to the top of the pressure block (7), the first hydraulic cylinder (6) is vertically fixed on the top of the top plate (2), a base (9) is provided below the pressure block (7), the base (9) is installed on the top of the operating table (1), a bearing plate (10) is provided above the base (9), a pressure sensor (11) is provided in the middle below the bearing plate (10), and the pressure sensor (11) is fixed on the base (9); Four equally spaced limit blocks (17) are provided on the upper side of the bearing plate (10), the limit blocks (17) are elastic rubber blocks, and one end of the limit blocks (17) away from the placement table is mounted on a mounting seat (16), the mounting seat (16) is connected to the second hydraulic cylinder (15), and the second hydraulic cylinder (15) is vertically fixed to the side plate (4) and the sealing door (5) through a mounting frame (18); It also includes a hydraulic station (23), which is arranged below the operating platform (1) and fixed on a first fixing frame (24). The first fixing frame (24) is fixed to the operating platform (1), and the hydraulic station (23) is connected to the first hydraulic cylinder (6) and the second hydraulic cylinder (15) respectively.

2. The new high-precision, high-rigidity electric servo pressure testing machine according to claim 1 is characterized in that: A plurality of guide seats (13) arranged at intervals are arranged along the top edge of the base (9), a guide shaft (12) is built into the guide seat (13), and the top of the guide shaft (12) is fixed to the bearing plate (10).

3. The new high-precision, high-rigidity electric servo pressure testing machine according to claim 1 is characterized in that: At least one first guide rod (8) is arranged in parallel on the side of the first hydraulic cylinder (6); the bottom of the first guide rod (8) is fixed on the pressing block (7), and the top of the first guide rod (8) slides through the top plate (2).

4. The new high-precision, high-rigidity electric servo pressure testing machine according to claim 1 is characterized in that: At least one second guide rod (19) is arranged in parallel on the side of the second hydraulic cylinder (15), one end of the second guide rod (19) is fixed on the mounting seat (16), and the other end of the second guide rod (19) slides through the mounting frame (18).

5. The new high-precision, high-rigidity electric servo pressure testing machine according to claim 1 is characterized in that: An inclined plate (14) is installed along the edge of the carrying plate (10) and is arranged obliquely downward.

6. The new high-precision, high-rigidity electric servo pressure testing machine according to claim 1 is characterized in that: A display (27) is arranged at one end of the top of the operating table (1) away from the top plate (2), and a control box (25) is arranged below the operating table (1). A controller is arranged in the control box (25), and the controller is connected to the display (27), the hydraulic station (23), and the pressure sensor (11) through wires. The control box (25) is mounted on a second fixing frame (26), and the second fixing frame (26) is fixed to the operating table (1).

7. The new high-precision, high-rigidity electric servo pressure testing machine according to claim 6 is characterized in that: A first cross-flow fan (20) is provided on a side of the top plate (2) away from the sealing door (5), the first cross-flow fan (20) is fixed to the top plate (2) via a connecting frame (21), and an air outlet of the first cross-flow fan (20) corresponds to the top surface of the placement table, and the first cross-flow fan (20) is connected to a controller via a wire; A second cross-flow fan (22) is provided on a side of the top of the operating table (1) away from the sealing door (5); the second cross-flow fan (22) is fixed on the side plate (4), and the second cross-flow fan (22) corresponds to the top surface of the operating table (1); the second cross-flow fan (22) is connected to a controller via a wire.

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