Chain tension tester

Abstract

The utility model discloses a chain tension testing machine which comprises an oil cylinder, a group of guide rods, a limiting plate, a piston rod, a first clamping mechanism and a second clamping mechanism, the oil cylinder is arranged on the top seat, and guide rods are arranged around the oil cylinder; the guide rod penetrates through and is connected to the top seat in a sliding manner; the limiting plate is mounted at the bottom of the guide rod; the piston rod is connected with the limiting plate in a penetrating mode, and the first clamping mechanism is rotationally connected with the piston rod through a damping rotating shaft and used for adjusting the clamping direction. The second clamping mechanism is arranged on the base and corresponds to the first clamping mechanism. The overall structure is compact, and the space utilization rate is high; and two groups of clamping mechanisms are arranged, so that the testing stability is improved, higher flexibility is provided for chains with different shapes and sizes, and more diversified testing requirements are met.

Description

Technical Field

[0001] This utility model belongs to the field of tensile testing technology, and specifically relates to a chain tensile testing machine. Background Technology

[0002] A chain is a mechanical component consisting of a series of rigid yet flexible connecting parts called links, which are interconnected by pins, sleeves, or rollers. The design of chains allows them to transmit force while accommodating curvilinear motion, making them an indispensable part of many mechanical devices. Chain tensile testing machines are primarily used to evaluate the maximum load-bearing capacity of a chain, that is, by applying gradually increasing tensile force until the chain breaks or reaches a predetermined safety threshold, thereby determining the chain's strength and reliability.

[0003] However, existing chain tensile testing machines are bulky, have low space utilization, and their clamping designs can result in insecure or inaccurate clamping. If the machine's clamps cannot hold the chain securely, the chain may slip, shift, or even fall off during tensile testing. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a chain tensile testing machine. This application is equipped with two sets of clamping mechanisms, which makes it less likely for the chain to fall off, improves the testing accuracy and efficiency, and ensures that various chains can be clamped firmly and accurately.

[0005] Technical Solution: A chain tensile testing machine includes a hydraulic cylinder, a set of guide rods, a limiting plate, a piston rod, a first clamping mechanism, and a second clamping mechanism. The hydraulic cylinder is mounted on a top seat and surrounded by guide rods. The guide rods pass through and are slidably connected to the top seat, and the limiting plate is installed at the bottom of the guide rods. The piston rod passes through and connects to the limiting plate. The first clamping mechanism is rotatably connected to the piston rod via a damping shaft for adjusting the clamping direction. The second clamping mechanism is mounted on a base and corresponds to the first clamping mechanism. This application features a compact overall structure and high space utilization. Furthermore, the two clamping mechanisms improve the stability of the test and provide greater flexibility for chains of different shapes and sizes, adapting to more diverse testing needs.

[0006] Furthermore, the first clamping mechanism is S-shaped and includes a first clamping block, a second clamping block, and a third clamping block. The first and third clamping blocks are slidably connected to the second clamping block via a connecting rod. This S-shaped design allows the clamping mechanism to more flexibly adapt to chains of different sizes and shapes, increasing structural stability and dispersing the force through multiple contact points, further enhancing stability during clamping and facilitating more accurate tensile testing.

[0007] Furthermore, the first clamping block is provided with a threaded groove for connecting the piston rod; the first clamping block and the third clamping block are respectively provided with a first fastener and a second fastener, the first fastener and the second fastener passing through the first clamping block and the third clamping block respectively, and both abutting against the second clamping block. By adjusting the position of the first fastener and the second fastener, and by allowing the fasteners to pass through the chain hole, this application can effectively clamp various types of chains, improving the versatility of the equipment.

[0008] Furthermore, the second clamping block has a through hole with a diameter larger than the width of the chain to be tested. The larger through hole in this application provides greater adaptability to chains of different widths, meaning that the same set of clamps can be used for chains of various specifications, increasing the versatility and flexibility of the equipment and reducing the need to replace or adjust the clamps.

[0009] Furthermore, the third clamping block is provided with a groove, which has an anti-slip texture. The design of the groove in this application can be customized according to the shape of the chain, making it fit the contour of the chain better. This close fit not only enhances the grip but also improves the stability throughout the clamping process.

[0010] Furthermore, the second clamping mechanism includes a clamping bracket, a first clamping fixing shaft, a second clamping fixing shaft, a first clamping gear, a second clamping gear, a first clamping fixing block, and a second clamping fixing block; the first clamping fixing shaft and the second clamping fixing shaft are arranged parallel to each other on the clamping bracket; the first clamping gear and the first clamping fixing block are sleeved and fixed to the first clamping fixing shaft; the second clamping gear and the second clamping fixing block are sleeved to the second clamping fixing shaft. This application provides clamping fixing blocks that can clamp strip-shaped chains, and clamping gears that can fit around loop-shaped chains. The positions of these components can be adjusted as needed to adapt to chains of different sizes or shapes, improving its versatility.

[0011] Furthermore, the second clamping mechanism also includes a drive mechanism, which is fixedly mounted on the base via a drive mechanism. A drive rod is provided at the output end of the drive mechanism, and the drive rod is connected to the bottom end of the second clamping block. This application uses a drive mechanism to provide precise force and position control, ensuring a consistent force is applied each time the chain is clamped, thus avoiding uneven clamping force caused by human factors.

[0012] Furthermore, the first clamping block and the second clamping block are arranged opposite to each other, and both contact surfaces are provided with suction cup assemblies. The suction cup assemblies of this application can provide additional adsorption force during the clamping process, making the clamping more secure. This is crucial to ensuring that the chain does not slip or loosen during testing, thereby guaranteeing the accuracy of the test results.

[0013] Furthermore, the first clamping gear and the second clamping gear are meshed together. Due to the precise meshing between the two gears, this design allows for adjustment of the distance between the clamping blocks according to chains of different widths, enabling precise control of the clamping force and position.

[0014] Furthermore, a transparent protective cover is provided around the base. This transparent protective cover effectively prevents injury to operators caused by chain breakage or other flying parts during testing, providing a physical barrier and greatly improving the safety of the working environment.

[0015] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0016] 1. The chain tensile testing machine disclosed in this application has a compact overall structure and high space utilization; and is equipped with two sets of clamping mechanisms, which improves the stability of the test and provides greater flexibility for chains of different shapes and sizes, adapting to more diverse testing needs.

[0017] 2. The chain tensile testing machine disclosed in this application has an S-shaped first clamping mechanism, which allows the clamping mechanism to adapt more flexibly to chains of different sizes and shapes. This not only increases the structural stability but also disperses the force through multiple contact points, further enhancing the stability during the clamping process and facilitating more accurate tensile testing.

[0018] 3. The chain tensile testing machine disclosed in this application is equipped with a suction cup assembly in the second clamping mechanism, which can provide additional adsorption force during the clamping process, making the clamping more secure. This is very important to ensure that the chain will not slip or loosen during the test, thereby ensuring the accuracy of the test results. Attached Figure Description

[0019] Figure 1 This is a front view of a chain tensile testing machine;

[0020] Figure 2 A schematic diagram of the first clamping mechanism of a chain tensile testing machine;

[0021] Figure 3 A schematic diagram of the first clamping mechanism of a chain tensile testing machine in the open state;

[0022] Figure 4 This is a schematic diagram of the second clamping mechanism of a chain tensile testing machine.

[0023] Explanation of reference numerals in the attached drawings: 1-Base; 2-Top seat; 3-Oil cylinder; 4-Guide rod; 5-Limiting plate; 6-Piston rod; 7-First clamping mechanism; 701-First clamping block; 702-Second clamping block; 703-Third clamping block; 704-First fastener; 705-Second fastener; 706-Threaded groove; 707-Through hole; 708-Groove; 709-Connecting rod; 8-Second clamping mechanism; 800-Clamping bracket; 801-Drive mechanism; 802-Drive fixing frame; 803-Drive rod; 804-First clamping fixing shaft; 805-Second clamping fixing shaft; 806-First clamping gear; 807-Second clamping gear; 808-First clamping fixing block; 809-Second clamping fixing block. Detailed Implementation

[0024] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] This embodiment describes a chain tensile testing machine. Please refer to [link / reference]. Figure 1 As shown, the device includes a base 1, a top seat 2, a hydraulic cylinder 3, a set of guide rods 4, a limiting plate 5, a piston rod 6, a first clamping mechanism 7, and a second clamping mechanism 8. The hydraulic cylinder 3 is mounted on the top seat 2 and is surrounded by guide rods 4. The guide rods 4 pass through and are slidably connected to the top seat 2, and a bushing is provided at the connection point. The limiting plate 5 is installed at the bottom of the guide rods 4. The piston rod 6 passes through and is connected to the limiting plate 5. The first clamping mechanism 7 is rotatably connected to the piston rod 6 via a damping shaft for adjusting the clamping direction. The second clamping mechanism 8 is mounted on the base 1 and is correspondingly arranged to the first clamping mechanism 7.

[0027] Specifically, a transparent protective cover is provided around the base 1.

[0028] For details, please refer to Figure 2-3 As shown, the first clamping mechanism 7 is S-shaped and includes a first clamping block 701, a second clamping block 702, and a third clamping block 703. The first clamping block 701 and the third clamping block 703 are slidably connected to the second clamping block 702 through a connecting rod 709.

[0029] Specifically, the first clamping block 701 is provided with a threaded groove 706 for connecting the piston rod 6; the first clamping block 701 and the third clamping block 703 are respectively provided with a first fastener 704 and a second fastener 705, the first fastener 704 and the second fastener 705 pass through the first clamping block 701 and the third clamping block 703 respectively, and both abut against the second clamping block 702.

[0030] Specifically, the second clamping block 702 is provided with a through hole 707, the diameter of which is larger than the width of the chain to be tested, and the chain can pass through the through hole 707.

[0031] Specifically, the third clamping block 703 is provided with a groove 708, and the groove 708 has anti-slip texture.

[0032] For details, please refer to Figure 4 As shown, the second clamping mechanism 8 includes a clamping bracket 800, a first clamping fixing shaft 804, a second clamping fixing shaft 805, a first clamping gear 806, a second clamping gear 807, a first clamping fixing block 808, and a second clamping fixing block 809; the first clamping fixing shaft 804 and the second clamping fixing shaft 805 are arranged parallel to each other on the clamping bracket 800; the first clamping gear 806 and the first clamping fixing block 808 are sleeved and fixed to the first clamping fixing shaft 804; the second clamping gear 807 and the second clamping fixing block 809 are sleeved to the second clamping fixing shaft 805.

[0033] Specifically, the second clamping mechanism 8 further includes a driving mechanism 801, which is mounted on the base 1 via a driving fixing frame 802. A driving rod 803 is provided at the output end of the driving mechanism 801, and the driving rod 803 is connected to the bottom end of the second clamping fixing block 809.

[0034] Specifically, the first clamping and fixing block 808 and the second clamping and fixing block 809 are arranged opposite to each other, and both contact surfaces are provided with suction cup assemblies. The suction cup assemblies can be set inside the chain hole or at other suitable positions for clamping the chain.

[0035] Specifically, the first clamping gear 806 and the second clamping gear 807 are meshed together. The dimensions of the first clamping gear 806 and the second clamping gear 807 can be adjusted according to actual needs.

[0036] Example 2

[0037] This embodiment describes the working steps of a chain tensile testing machine. Based on the above embodiment, further details are provided, including step S1, preparation stage: placing the chain to be tested between the first clamping mechanism 7 and the second clamping mechanism 8. The position of the second clamping fixing block 809 is adjusted using the drive mechanism 801, so that the chain is firmly but not excessively clamped between the two clamping mechanisms.

[0038] Specifically, the clamping steps of the first clamping mechanism 7 include: firstly, pulling out the first clamping block 701 and the third clamping block 703, then inserting the chain to be tested into the through hole 707 along the end face between the first clamping block 701 and the second clamping block 702, and placing the chain between the second clamping block 702 and the third clamping block 703 after it passes through the through hole 707. At this time, the head of the chain to be tested is S-shaped.

[0039] Specifically, the first clamping block 701 and the third clamping block 703 are pressed and retracted. At this time, the first clamping block 701 and the third clamping block 703 respectively press the chain to be tested against the two sides of the second clamping block 702.

[0040] Specifically, the first fastener 704 and the second fastener 705 are then inserted into the test chain holes at both ends to further tighten and clamp the chain.

[0041] In another embodiment, if a circular chain is used to test the tensile force, the first clamping mechanism 7 is rotated by the damping shaft, one end of the circular chain is suspended in the groove of the third clamping block 703, and the other end is fitted onto the first clamping gear 806 or the second clamping gear 807 of the second clamping mechanism 8, or between the first clamping fixing block 808 and the second clamping fixing block 809.

[0042] Step S2, Start-up Test: Start the hydraulic cylinder 3, and the piston rod 6 begins to extend outward, applying tension to the chain through the first clamping mechanism 7. Due to the meshing of the first clamping gear 806 and the second clamping gear 807, the synchronicity and stability of the movement of the clamping blocks on both sides are ensured.

[0043] Step S3, Monitoring and Recording: Throughout the tensile test, the operator can monitor the status of the chain in real time through a transparent protective cover and record the data until the predetermined test standard is reached or the chain breaks.

[0044] Step S4, Conclusion and Analysis: After the test, each mechanism automatically resets and releases the chain. Collect and analyze the test data to evaluate the chain's quality and performance.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A chain tension tester characterized by comprising: The utility model provides a chain detection device, including oil cylinder (3), a group of guide rod (4), limiting plate (5), piston rod (6), first clamping mechanism (7), second clamping mechanism (8), oil cylinder (3) is located on top seat (2), and the periphery is provided with guide rod (4), guide rod (4) is threaded and is connected in sliding mode in top seat (2), the bottom of guide rod (4) is installed limiting plate (5), piston rod (6) is threaded and is connected limiting plate (5), first clamping mechanism (7) is rotatably connected with piston rod (6) through damping pivot, is used for adjusting clamping direction, second clamping mechanism (8) is located on base (1), and with first clamping mechanism (7) corresponding arrangement.

2. A chain tension testing machine according to claim 1, wherein The first clamping mechanism (7) is in the shape of "S", comprising a first clamping block (701), a second clamping block (702) and a third clamping block (703), the first clamping block (701) and the third clamping block (703) are slidably connected with the second clamping block (702) through a connecting rod (709).

3. A chain tension tester according to claim 2, wherein The first clamping block (701) is provided with a threaded groove (706) for connecting the piston rod (6), the first clamping block (701) and the third clamping block (703) are respectively provided with a first fastener (704) and a second fastener (705), the first fastener (704) and the second fastener (705) are threaded through the first clamping block (701) and the third clamping block (703) respectively, and abut against the second clamping block (702).

4. A chain tension testing machine according to claim 2, wherein The second clamping block (702) is provided with a through hole (707), and the diameter of the through hole (707) is greater than the width of the chain to be detected.

5. A chain tension testing machine according to claim 2, wherein The third clamping block (703) is provided with a groove (708) having anti-slip lines.

6. A chain tension testing machine according to claim 1 wherein, The second clamping mechanism (8) comprises a clamping bracket (800), a first clamping fixed shaft (804), a second clamping fixed shaft (805), a first clamping gear (806), a second clamping gear (807), a first clamping fixed block (808) and a second clamping fixed block (809), the first clamping fixed shaft (804) and the second clamping fixed shaft (805) are arranged in parallel on the clamping bracket (800), the first clamping gear (806) and the first clamping fixed block (808) are sleeved and fixed on the first clamping fixed shaft (804), and the second clamping gear (807) and the second clamping fixed block (809) are sleeved on the second clamping fixed shaft (805).

7. A chain tension testing machine according to claim 6, wherein The second clamping mechanism (8) further comprises a driving mechanism (801), the driving mechanism (801) is arranged on the base (1) through a driving fixed frame (802), the output end of the driving mechanism (801) is provided with a driving rod (803), and the driving rod (803) is connected with the bottom end of the second clamping fixed block (809).

8. A chain tension testing machine according to claim 6, wherein The first clamping fixed block (808) and the second clamping fixed block (809) are arranged opposite to each other, and the contact surfaces are provided with suction cup assemblies.

9. A chain tension testing machine according to claim 6 wherein, The first clamping gear (806) and the second clamping gear (807) are meshed.

10. A chain tension testing machine according to claim 1 wherein, A transparent protective cover is arranged around the base (1).

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