Testing machine for measuring compressive fatigue strength of object

Abstract

The utility model discloses a testing machine for measuring compressive fatigue strength of an object, and belongs to the technical field of building material detection equipment. The testing machine comprises a machine body and a transmission device, the machine body comprises a machine body, a cross beam and stand columns, the cross beam is arranged above the two stand columns and connected through bolts, the upper side and the lower side of the center of the cross beam are respectively provided with a height adjusting hand wheel and a lifting lead screw, the two stand columns are respectively provided with two locking bolts, and the machine body is fastened on the stand columns through the locking bolts; the transmission device comprises a flywheel and a crankshaft, a brake is arranged on the side, away from the flywheel, of the crankshaft, a connecting rod is arranged at the lower end of the crankshaft, a ball screw is arranged at the lower end of the connecting rod through a locking nut, a sliding block is arranged below the ball screw, and a mold pressing block is arranged at the lower end of the sliding block. The overrun type rigid clutch structure is adopted, and the overrun type rigid clutch device has the advantages of being sensitive, reliable, small in size, small in vibration and low in noise and can be installed and used on a wood table or a clamp table iron frame or a cement pier with the proper height.

Description

Technical Field

[0001] The utility model discloses a testing machine for measuring the compressive fatigue strength of an object, belonging to the technical field of building material testing equipment. Background Art

[0002] Pressure testing machines, also known as electronic pressure testing machines, are mainly used for various physical and mechanical performance tests of materials such as rubber, plastic sheets, pipes, profiles, plastic films, wires and cables, waterproof coils, metal wires, cartons, etc. The application of pressure testing machines can determine the physical properties and performance of materials, optimize product design and process flow, and ensure product quality and production safety. Existing testing machines for measuring the compressive fatigue strength of objects have the following disadvantages. First, the models with high impact rates are too large, which is inconvenient to place in small operation scenes and has too much noise. Second, the body becomes loose during stamping and is easy to damage the mold and machine. Utility Model Content

[0003] In order to solve the problems in the prior art such as large size of machines with high impact rate and looseness of the body during stamping, which may damage the mold and machine, we proposed a small and low-noise testing machine for measuring the compressive fatigue strength of objects.

[0004] The utility model discloses a testing machine for measuring the compressive fatigue strength of an object, the testing machine comprises: a machine body 1 and a transmission device 2; the machine body 1 comprises a machine body 101, a crossbeam 102 and a column 103, the crossbeam 102 is arranged above the two columns 103 and connected by bolts, a height adjustment hand wheel 104 and a lifting screw 105 are respectively arranged on the upper and lower sides of the center of the crossbeam 102, two locking bolts 106 are respectively arranged on the two columns 103, the machine body 101 is fastened to the columns 103 by the locking bolts 106; the transmission device 2 comprises a flywheel 201 and a crankshaft 202, a brake 203 is arranged on the side of the crankshaft 202 away from the flywheel 201, a connecting rod 204 is arranged at the lower end of the crankshaft 202, a ball screw 205 is arranged at the lower end of the connecting rod 204 through a second locking nut 206, a slider 3 is arranged below the ball screw 205, and a mold pressing block 301 is arranged at the lower end of the slider 3.

[0005] The lifting screw rod 105 is provided with a first locking nut 107 .

[0006] The flywheel 201 is provided with a V-belt 207 at the upper and lower ends.

[0007] A shaft sleeve 208 is disposed on the left side of the flywheel 201 .

[0008] A mold handle 4 is provided below the mold pressing block 301 , and the mold handle 4 is fixedly connected to the center of the mounting plate 5 .

[0009] The lower end of the mounting plate 5 is provided with a pressure adjustment component 6 and a pressure sensor 7 in sequence, and the pressure sensor 7 is provided on the upper end surface of the pressure plate 8 .

[0010] A crankcase 9 is disposed outside the crankshaft 202 , and a controller 10 and a pressure sensor meter reading box 11 are disposed in sequence at one end of the crankcase 9 away from the flywheel 201 .

[0011] The brake 203 is provided with a locking bolt.

[0012] The beneficial effects of the utility model are:

[0013] 1. This machine is small in size, has little vibration and noise, and can be installed on a wooden table, table iron frame or cement pier of appropriate height. When installing, align the two threaded holes on the bottom of the machine and the long groove at the tail from under the installation table, and tighten with bolts.

[0014] 2. This machine adopts an overrunning rigid clutch structure, which is sensitive and reliable.

[0015] 3. The impact power source is a 220V electric punching machine, which can automatically and continuously punch. The speed can be adjusted to a maximum of 250 times / min. Calculated at a speed of 1 time / s, it can impact 86,400 times a day. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model, which also serves as an abstract drawing.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the fuselage 1 of the utility model.

[0018] Figure 3 It is a schematic diagram of the side structure of the fuselage 1 of the utility model.

[0019] Figure 4 It is a schematic cross-sectional structure diagram of the transmission device 2 of the present utility model.

[0020] Figure 5 It is a cross-sectional structural diagram of a specific connection method of the slider 3 of the utility model.

[0021] In the figure: 1. fuselage, 101. body, 102. crossbeam, 103. column, 104. height adjustment hand wheel, 105. lifting screw, 106. locking bolt, 107. first locking nut, 2. transmission device, 201. flywheel, 202. crankshaft, 203. brake, 204. connecting rod, 205. ball screw, 206. second locking nut, 207. V-belt, 208. bushing, 3. slider, 301. mold block, 4. mold handle, 5. mounting plate, 6. pressure adjustment member, 7. pressure sensor, 8. pressure plate, 9. crankcase, 10. controller, 11. pressure sensor meter reading box. DETAILED DESCRIPTION

[0022] The following is a specific implementation example of the utility model in conjunction with the accompanying drawings, and the structure and implementation method of the utility model are described in detail. It should be noted that the scope of application of the utility model is not limited to the following embodiments, and all similar structures based on the utility model are within the scope of application of the utility model.

[0023] The utility model discloses a testing machine for measuring the compressive fatigue strength of an object, the testing machine comprises: a machine body 1 and a transmission device 2; the machine body 1 comprises a machine body 101, a crossbeam 102 and a column 103, the crossbeam 102 is arranged above two columns 103 and connected by bolts, a height adjustment hand wheel 104 and a lifting screw rod 105 are respectively arranged on the upper and lower sides of the center of the crossbeam 102, two locking bolts 106 are respectively arranged on the two columns 103, the machine body 101 is fastened to the column 103 by the locking bolts 106; the machine body 101, the lifting screw rod 105, and the height adjustment hand wheel 104 constitute a lifting mechanism, to adjust the machine body To adjust the height of the body 101, you must first loosen the first locking nut 107 of the lifting screw 105, then loosen the four locking bolts 106 on the back of the body 101, and then turn the height adjustment hand wheel 104 to make the body 101 rise and fall on the column 103 to adjust the height and closed height of the body 101; if only a slight adjustment is needed, you can loosen the second locking nut 206 on the ball screw 205, turn the ball screw 205 for fine adjustment, and the fine adjustment amount is not more than 10mm; after the adjustment is completed, the four locking bolts 106 and the first locking nut 107 of the lifting screw 105 must be tightened again. Prevent the body 101 from loosening during the stamping operation and damaging the mold and the machine.

[0024] The transmission device 2 includes a flywheel 201 and a crankshaft 202. A brake 203 is provided on the side of the crankshaft 202 away from the flywheel 201. A connecting rod 204 is provided at the lower end of the crankshaft 202. A ball screw 205 is provided at the lower end of the connecting rod 204 through a second locking nut 206. A slider 3 is provided below the ball screw 205. A mold pressing block 301 is provided at the lower end of the slider 3. The motor drives the flywheel 201 through the V-belt 207 through the clutch, drives the crankshaft 202 to drive the connecting rod 204 and the ball screw 205, and pushes the slider 3 to reciprocate up and down, so that the machine performs stamping work.

[0025] A shaft sleeve 208 is provided on the left side of the flywheel 201. In order to ensure stable and balanced rotation of the crankshaft 202 during stamping, the locking bolt of the brake 203 can be adjusted to clamp or loosen the brake 203 on the shaft sleeve 208 to produce an ideal friction effect and achieve braking of the crankshaft 202. This machine adopts an overrunning rigid clutch structure, which consists of a clutch housing, balls, hexagonal cams, couplings, shaft sleeves, etc., and is sensitive and reliable.

[0026] A die handle 4 is provided below the die pressing block 301, and the die handle 4 is fixedly connected to the center of the mounting plate 5. The slider 3 is the main body of the machine for clamping the die for stamping work, and the die pressing block 301 below the slider 3 is used to clamp the die handle 4 of the upper die.

[0027] The lower end of the mounting plate 5 is provided with a pressure adjustment component 6 and a pressure sensor 7 in sequence, and the pressure sensor 7 is provided on the upper end surface of the pressure plate 8 .

[0028] A crankcase 9 is disposed outside the crankshaft 202 , and a controller 10 and a pressure sensor meter reading box 11 are disposed in sequence at one end of the crankcase 9 away from the flywheel 201 .

[0029] Specific steps:

[0030] 1. Turn the flywheel 201 by hand, adjust the travel of the slider 3 to the lowest point, loosen the four locking bolts 106 on the back of the body 101, loosen the first locking nut 107 of the lifting screw 105, and turn the height adjustment hand wheel 104 by hand to adjust the body 101 to a suitable height; place the mold between the slider 3 and the work table, and then turn the height adjustment hand wheel 104 according to the reasonable spacing between the upper and lower molds to adjust the accurate height of the body 101; if only a slight adjustment is required, the second locking nut 206 on the ball screw 205 can be loosened, and the ball screw 205 can be rotated to make the closed height fully meet the working requirements. After the adjustment is completed, the four locking bolts 106, the lifting screw 105 and the second locking nut 206 of the ball screw 205 must be tightened.

[0031] 2. Add sufficient lubricating oil to all lubrication points and friction parts; turn the flywheel 201 by hand to make the flywheel 201 idle for a few circles when it is disengaged from the clutch, and carefully check whether the oil circuit is unobstructed and whether the clutch mechanism and operating mechanism are normal.

[0032] 3. Use the adjusting nut on the motor plate to adjust the tightness of the V-belt 207.

[0033] 4. There is a travel selection switch on the front panel of the electronic control box. According to work needs, you can set single or continuous working travel at will to operate.

Claims

1. A testing machine for measuring the compressive fatigue strength of an object, characterized in that: The testing machine comprises: a machine body (1) and a transmission device (2); the machine body (1) comprises a machine body (101), a crossbeam (102) and a column (103); the crossbeam (102) is arranged above two columns (103) and connected by bolts; a height adjustment hand wheel (104) and a lifting screw rod (105) are respectively arranged on the upper and lower sides of the center of the crossbeam (102); two locking bolts (106) are respectively arranged on the two columns (103); the machine body (101) is locked by the locking bolts (106) 06) is fastened to the column (103); the transmission device (2) includes a flywheel (201) and a crankshaft (202), a brake (203) is provided on the side of the crankshaft (202) away from the flywheel (201), a connecting rod (204) is provided at the lower end of the crankshaft (202), a ball screw (205) is provided at the lower end of the connecting rod (204) through a second locking nut (206), a slider (3) is provided below the ball screw (205), and a mold pressing block (301) is provided at the lower end of the slider (3).

2. A testing machine for measuring the compressive fatigue strength of an object according to claim 1, characterized in that: The lifting screw rod (105) is provided with a first locking nut (107).

3. A testing machine for measuring compressive fatigue strength of an object according to claim 1, characterized in that: The flywheel (201) is provided with a V-belt (207) at the upper and lower ends.

4. A testing machine for measuring the compressive fatigue strength of an object according to claim 1, characterized in that: A shaft sleeve (208) is provided on the left side of the flywheel (201).

5. A testing machine for measuring compressive fatigue strength of an object according to claim 1, characterized in that: A mold handle (4) is provided below the mold pressing block (301), and the mold handle (4) is fixedly connected to the center of the mounting plate (5).

6. A testing machine for measuring compressive fatigue strength of an object according to claim 5, characterized in that: The lower end of the mounting plate (5) is provided with a pressure adjustment component (6) and a pressure sensor (7) in sequence, and the pressure sensor (7) is arranged on the upper end surface of the pressure plate (8).

7. A testing machine for measuring compressive fatigue strength of an object according to claim 1, characterized in that: A crankcase (9) is disposed outside the crankshaft (202), and a controller (10) and a pressure sensor meter reading box (11) are sequentially disposed at one end of the crankcase (9) away from the flywheel (201).

8. A testing machine for measuring compressive fatigue strength of an object according to claim 1, characterized in that: The brake (203) is provided with a locking bolt.

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