Driving mechanism of Brinell hardness tester

Abstract

The utility model discloses a driving mechanism of a Brinell hardness tester, which is provided with a hardness tester main body, a loading main shaft positioned in the hardness tester main body, a pair of fixed seats, a movable part, a driver, a screw rod, a transmission part, two guide rods, a first transmission rod, a front cutter pad, a transmission cutter pad, a second transmission rod and a transmission assembly. The lead screw is adopted to drive the transmission piece to ascend and descend, loads are transmitted to the loading main shaft through the first transmission rod, the transmission assembly and the second transmission rod, the overall structural design is more balanced, the structure is more stable and reliable, and the service life is long.

Description

Technical Field

[0001] The utility model relates to a hardness tester, in particular to a driving mechanism of a Brinell hardness tester. Background Art

[0002] The Brinell hardness tester is a precision measuring instrument for measuring the Brinell hardness of metals. It is primarily used to determine the hardness of materials such as cast iron, steel, nonferrous metals, and soft alloys. The Brinell hardness test produces the largest indentation of all hardness tests, reflecting the material's overall properties and unaffected by microscopic segregation and compositional inhomogeneities. Therefore, it offers a high degree of accuracy. Existing Brinell hardness testers rely solely on a traditional lever to transmit the load to the loading spindle, resulting in a short lifespan. A symmetrical design of the Brinell hardness tester's drive mechanism is required. Summary of the Invention

[0003] According to an embodiment of the present invention, a driving mechanism of a Brinell hardness tester is provided, comprising a hardness tester body and a loading spindle located inside the hardness tester body, and further comprising:

[0004] A pair of fixing seats, the pair of fixing seats are arranged inside the hardness tester body and are arranged opposite to each other;

[0005] A movable member, with both ends of the movable member movably connected to a pair of fixed seats;

[0006] A driver, which is connected to the moving part;

[0007] Screw rod, the bottom end of the screw rod passes through the movable part and is connected to the output end of the driver;

[0008] A transmission part, which is sleeved on the screw rod;

[0009] Two guide rods, the two guide rods are arranged on both sides of the top of the movable part, and the tops of the two guide rods pass through the transmission part;

[0010] a first transmission rod, one end of which is hinged to the interior of the hardness tester body, and the other end of which is hinged to the transmission member;

[0011] A front blade pad, which is arranged inside the hardness tester body;

[0012] Transmission shim, which is arranged on the top of the loading spindle;

[0013] a second transmission rod, wherein one end of the second transmission rod is provided with a front blade tip, the front blade tip contacts the front blade pad, and the second transmission rod is provided with a transmission blade tip, the transmission blade tip contacts the transmission blade pad;

[0014] The transmission assembly connects the first transmission rod and the second transmission rod and is used to transmit power.

[0015] Furthermore, the transmission assembly includes:

[0016] a first blade tip, the first blade tip being arranged on the first transmission rod;

[0017] a second blade tip, the second blade tip being arranged on the second transmission rod;

[0018] The transmission frame is provided with a first knife pad and a second knife pad, the first knife pad contacts the first knife tip, and the second knife pad contacts the first knife tip.

[0019] Furthermore, it also includes: an articulated seat, which is arranged inside the hardness tester body and is hinged to one end of the first transmission rod.

[0020] Furthermore, a pair of fixed seats are each provided with a bearing, and the bearing sleeve is arranged on the end of the movable part.

[0021] Furthermore, linear bearings are provided on both sides of the transmission member, and the linear bearings are sleeved on the guide rod.

[0022] Furthermore, it also includes:

[0023] A first sensor is provided inside the hardness tester body and is used to detect the upper limit stroke of the first transmission rod;

[0024] The second sensor is arranged inside the hardness tester body and is used to detect the lower limit stroke of the first transmission rod.

[0025] According to the driving mechanism of a Brinell hardness tester in an embodiment of the utility model, a screw is used to drive the transmission member to rise and fall, and the load is transmitted to the loading spindle through the first transmission rod, the transmission assembly, and the second transmission rod. The overall structural design is more balanced, the structure is more stable, the reliability is increased, and the service life is long.

[0026] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The figure is a schematic diagram of the main structure of a driving mechanism of a Brinell hardness tester according to an embodiment of the present utility model.

[0028] Figure 2 The figure is a side structural schematic diagram of a driving mechanism of a Brinell hardness tester according to an embodiment of the present utility model.

[0029] Figure 3 The figure is a schematic top view of the transmission member of the driving mechanism of a Brinell hardness tester according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to further illustrate the present invention.

[0031] First, combine Figures 1-3 A driving mechanism of a Brinell hardness tester according to an embodiment of the present invention is described, which is used to transmit the load to the loading spindle 2, thereby transmitting the load to the indenter of the Brinell hardness tester to press down the surface of the workpiece. It has a wide range of application scenarios.

[0032] like Figures 1-3 As shown, a driving mechanism of a Brinell hardness tester in an embodiment of the present invention comprises a hardness tester body 1 and a loading spindle 2 located inside the hardness tester body 1, a pair of fixed seats 3, a movable part 4, a driver 5, a screw 6, a transmission part 7, two guide rods 8, a first transmission rod 9, a front knife pad 10, a transmission knife pad 11, a second transmission rod 12 and a transmission assembly. A pair of fixed seats 3 are arranged inside the hardness tester body 1 and are arranged opposite to each other; the two ends of the movable part 4 are movably connected to the pair of fixed seats 3 respectively; the driver 5 is connected to the movable part 4, and the driver 5 can be a motor; the bottom end of the screw rod 6 passes through the movable part 4 and is connected to the output end of the driver 5; the transmission member 7 is sleeved on the screw rod 6; two guide rods 8 are arranged on both sides of the top of the movable part 4, and the tops of the two guide rods 8 pass through the transmission member 7; one end of the first transmission rod 9 is hinged to the inside of the hardness tester body 1, and the other end of the first transmission rod 9 is hinged to the transmission member 7; the front knife pad 10 is arranged inside the hardness tester body 1; the transmission knife pad 11 is arranged on the top of the loading spindle 2; one end of the second transmission rod 12 is provided with a front knife tip 121, the front knife tip 121 is in contact with the front knife pad 10, and the second transmission rod 12 is provided with a transmission knife tip 122, which is in contact with the transmission knife pad 11; the transmission assembly connects the first transmission rod 9 and the second transmission rod 12 for transmitting power. By setting the movable part 4, the motor can drive the screw rod 6 to rotate and drive the transmission part 7 to rise and fall. When the transmission part 7 moves relative to the second transmission rod 12, the motor and screw rod 6 also move with it to ensure effective transmission.

[0033] Further, if Figure 1 As shown, the transmission assembly includes a first blade tip 13, a second blade tip 14, and a transmission frame 15. The first blade tip 13 is mounted on the first transmission rod 9; the second blade tip 14 is mounted on the second transmission rod 12; and the transmission frame 15 is provided with a first blade pad 151 and a second blade pad 152. The first blade pad 151 contacts the first blade tip 13, and the second blade pad 152 contacts the first blade tip 13.

[0034] Further, if Figures 1-3 As shown, the driving mechanism of the Brinell hardness tester according to the embodiment of the present invention further includes: an articulated seat 16 , which is arranged inside the hardness tester body 1 and is hinged to one end of the first transmission rod 9 .

[0035] Further, if Figure 2 As shown, a pair of fixed seats 3 are each provided with a bearing 17 inside, and the bearing 17 is sleeved on the end of the movable part 4 to reduce friction.

[0036] Furthermore, linear bearings 17 are provided on both sides of the transmission member 7, and the linear bearings 17 are sleeved on the guide rod 8 to reduce friction.

[0037] Further, if Figure 1 As shown, the driving mechanism of a Brinell hardness tester according to an embodiment of the present invention further includes: a first sensor 18 and a second sensor 19. The first sensor 18 is disposed within the hardness tester body 1 and is used to detect the upper limit of the travel of the first transmission rod 9; the second sensor 19 is disposed within the hardness tester body 1 and is used to detect the lower limit of the travel of the first transmission rod 9.

[0038] When in use, the driver 5 is operated to drive the screw 6 to rotate, and then the transmission member 7 runs downward on the screw 6, thereby driving the first transmission rod 9 to descend, and through the transmission assembly, driving the second transmission rod 12 to press down, transferring the load to the loading spindle 2 and transmitting it to the pressure head of the Brinell hardness tester to press down the surface of the workpiece.

[0039] Above, refer to Figures 1-3 The driving mechanism of a Brinell hardness tester according to an embodiment of the present invention is described. A screw 6 is used to drive the transmission member 7 to rise and fall, and the load is transmitted to the loading spindle 2 through the first transmission rod 9, the transmission assembly, and the second transmission rod 12. The overall structural design is more balanced, the structure is more stable, the reliability is long, and the service life is long.

[0040] It should be noted that, in this specification, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the elements.

[0041] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. After reading the above description, various modifications and alternatives to the present invention will be readily apparent to those skilled in the art. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A driving mechanism of a Brinell hardness tester, comprising a hardness tester body and a loading spindle located inside the hardness tester body, characterized in that: Also includes: a pair of fixing seats, the pair of fixing seats being arranged inside the hardness tester body and being arranged opposite to each other; A movable member, both ends of which are movably connected to the pair of fixed seats; a driver connected to the movable member; A screw rod, the bottom end of which passes through the movable member and is connected to the output end of the driver; A transmission member, the transmission member being sleeved on the screw rod; Two guide rods, the two guide rods are arranged on both sides of the top of the movable member, and the tops of the two guide rods pass through the transmission member; a first transmission rod, one end of which is hinged to the interior of the hardness tester body, and the other end of which is hinged to the transmission member; a front blade pad, the front blade pad being arranged inside the hardness tester body; A transmission knife pad, the transmission knife pad is arranged on the top of the loading spindle; a second transmission rod, wherein one end of the second transmission rod is provided with a front blade tip, the front blade tip is in contact with the front blade pad, and the second transmission rod is provided with a transmission blade tip, the transmission blade tip is in contact with the transmission blade pad; A transmission assembly connects the first transmission rod and the second transmission rod for transmitting power.

2. The driving mechanism of the Brinell hardness tester according to claim 1, wherein: The transmission assembly comprises: a first blade tip, the first blade tip being disposed on the first transmission rod; a second blade tip, the second blade tip being disposed on the second transmission rod; A transmission frame is provided with a first knife pad and a second knife pad, the first knife pad is in contact with the first knife tip, and the second knife pad is in contact with the first knife tip.

3. The driving mechanism of the Brinell hardness tester according to claim 1, wherein: It also includes: an articulated seat, which is arranged inside the hardness tester body and is hinged to one end of the first transmission rod.

4. The driving mechanism of the Brinell hardness tester according to claim 1, wherein: The inside of the pair of fixing seats are both provided with bearings, and the bearings are sleeved on the ends of the movable parts.

5. The driving mechanism of the Brinell hardness tester according to claim 1, wherein: Linear bearings are provided on both sides of the transmission member, and the linear bearings are sleeved on the guide rod.

6. The driving mechanism of the Brinell hardness tester according to claim 1, wherein: Also includes: a first sensor, the first sensor being disposed inside the hardness tester body and configured to detect an upper limit stroke of the first transmission rod; The second sensor is arranged inside the hardness tester body and is used to detect the lower limit stroke of the first transmission rod.

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