Towing and grinding test bed fixing tool

Abstract

The utility model discloses a drag abrasion test bed fixing tool, which comprises a base, a supporting mechanism and a fixing mechanism, the supporting mechanism comprises a lifting plate and a driving assembly, the lifting plate is connected to the base and is provided with a supporting surface for supporting a tested product, the fixed end of the driving assembly is connected to the base, and the fixed end of the driving assembly is connected to the base. The movable end of the driving assembly is connected to the lifting plate. The fixing mechanism comprises a chain and locking assemblies, the chain is used for winding and fixing a to-be-tested product, and the locking assemblies are fixed at the two ends of the chain and detachably connected with the lifting plate. The tool has the advantages that due to the lifting function of the supporting mechanism, the tool can adapt to the to-be-tested products with different heights; the chain is wound on the tested product, and the chain has certain flexibility, can fit the shape of the tested product, is adaptive to the tested products with different sizes, and improves the application range of the tool.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drag test bench field, concretely relates to a drag test bench fixing tool. BACKGROUND

[0002] The drag test bench is a kind of test equipment for testing the performance and quality of various materials, parts or products by simulating the friction, wear and drag conditions in actual use, and is usually powered by motor, engine and the like to drive the rotating parts or moving parts of test bench to generate the required drag movement.

[0003] The utility model discloses a kind of drag test benches for locomotive main shaft detection, including the base of horizontal arrangement, the main shaft installation platform of being set in the center of base, the motor adjustment seat of being symmetrically set in the both sides of base, frequency conversion motor is fixedly arranged on motor adjustment seat, frequency conversion motor is connected with the one end of power transmission shaft, the other end of power transmission shaft is connected with wheel shaft by flange, wheel shaft is fixed by wheel shaft frame, wheel shaft is connected with gear box by gear box transmission shaft and gear box, gear box is installed on the gear box frame on the edge of main shaft installation platform, the other end of gear box is connected with main shaft, main shaft is installed on main shaft installation platform, two groups of main shaft clamps are symmetrically set on main shaft installation platform, temperature sensor is respectively arranged on main shaft, wheel shaft and gear box, temperature sensor is respectively connected with temperature display screen, noise decibel instrument is respectively arranged on main shaft, wheel shaft and gear box, noise decibel instrument is respectively connected with noise display screen, motor synchronous controller is also installed on base, frequency conversion motor is connected with motor synchronous controller by wire respectively. Main shaft clamp is vertical rectangular frame, three adjacent edges in vertical rectangular frame are fixedly connected, form U-shaped frame, two ends of U-shaped frame are respectively connected with another edge by vertical movable pin and lock catch, fixed pressing block is arranged in vertical rectangular frame.

[0004] For the related technology in the above, there are the following defects: the main shaft of locomotive is measured product with multiple different models, and the size of measured product of different models is also different. The measured product clamp, as a clamp for clamping the measured product, can only adapt to one type of measured product, and the scope of application is limited. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the above technical deficiencies, and provides a drag test bench fixing tool, which solves the technical problem that one tool in the prior art can only adapt to one size of measured product.

[0006] To achieve the above technical purpose, the technical scheme of the utility model provides a drag test bench fixing tool, which comprises a base.

[0007] a support mechanism, the support mechanism comprising a lifting plate and a driving assembly, the lifting plate being connected to the base, the lifting plate having a support surface for supporting the product under test, the driving assembly having a fixed end connected to the base and a movable end connected to the lifting plate; and

[0008] a fixing mechanism, the fixing mechanism comprising a chain and a locking assembly, the chain being used for winding around the product under test, the locking assembly being fixed to both ends of the chain and being detachably connected to the lifting plate.

[0009] In some embodiments, the base comprises a bottom plate, a support rod and a top plate, the support rod being connected to the bottom plate, the top plate being connected to the support rod at an end away from the bottom plate.

[0010] In some embodiments, the support mechanism further comprises an anti-skid layer, the anti-skid layer being connected to the lifting plate at a side close to the product under test.

[0011] In some embodiments, the driving assembly comprises a screw rod and a guide rod, the guide rod being connected to the lifting plate, the guide rod being slidingly connected to the top plate, the screw rod being rotatably connected to the lifting plate, the screw rod being threadedly connected to the top plate.

[0012] In some embodiments, the driving assembly further comprises a first locking nut, the first locking nut being threadedly connected to the screw rod, the first locking nut being used for abutting against the top plate.

[0013] In some embodiments, the driving assembly further comprises a handle, the handle being connected to the screw rod.

[0014] In some embodiments, the fixing mechanism further comprises a hose, the hose being sleeved on the chain, the hose being used for abutting against the product under test.

[0015] In some embodiments, the locking assembly comprises two bolts, the two bolts being respectively connected to both ends of the chain, the bolts being threadedly connected to the top plate.

[0016] In some embodiments, the locking assembly further comprises a second locking nut, the second locking nut being threadedly connected to the bolt, the second locking nut being used for abutting against the top plate.

[0017] In some embodiments, the locking assembly further comprises a gasket, the gasket being sleeved on the bolt, the gasket being located between the top plate and the second locking nut.

[0018] Compared with the prior art, the beneficial effects of the utility model include: the lifting function of the support mechanism makes the tooling be able to adapt to the product to be measured of different heights, the chain is wound on the product to be measured, the chain has certain flexibility and can be attached to the shape of the product to be measured, adapts to the product to be measured of different sizes, and the application range of the tooling is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic view of the fixing tooling provided by the utility model;

[0020] Figure 2 It is the overall structure schematic view of the fixing tooling provided by the utility model; Figure 1 It is the local structure enlarged view of A place in the middle.

[0021] MARKS OF THE DRAWINGS:

[0022] 1, base; 11, bottom plate; 12, support rod; 13, top plate; 2, support mechanism; 21, lifting plate; 22, drive assembly; 221, screw rod; 222, guide rod; 223, first locking nut; 224, handle; 23, antiskid layer; 3, fixing mechanism; 31, chain; 32, locking assembly; 321, bolt; 322, second locking nut; 323, gasket; 33, hose. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following is in combination with the drawings and examples, and the utility model is further described in detail.It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0024] The utility model provides a kind of fixed tooling of drag grinding test bench, its structure as Figure 1 Figure 2 As shown in the figure, including base 1, support mechanism 2 and fixing mechanism 3.

[0025] The support mechanism 2 includes lifting plate 21 and drive assembly 22, the lifting plate 21 is connected on base 1, the lifting plate 21 has the support surface of supporting product to be measured, the fixed end of the drive assembly 22 is connected on base 1, and the movable end of the drive assembly 22 is connected on lifting plate 21.

[0026] The fixing mechanism 3 includes chain 31 and locking assembly 32, the chain 31 is used to wind and fix product to be measured, the locking assembly 32 is fixed at both ends of the chain 31, and is detachably connected with the lifting plate 21.

[0027] ​In use, when it is needed to fix products of different sizes or heights, the driving assembly 22 is started. The fixed end of the driving assembly 22 is stably connected to the base 1, providing stable support. The movable end is telescopic, driving the lifting plate 21 connected thereto to move vertically on the base 1. The chain 31 is wound around the product to be measured, and the chain 31 has a certain flexibility, which can fit the shape of the product to be measured. Then, the chain 31 is locked by the locking assembly 32. Thus, the product to be measured is firmly bound in the horizontal direction.

[0028] In the utility model, the lifting function of the supporting mechanism 2 enables the tooling to adapt to products to be measured of different heights, the chain 31 is wound around the product to be measured, the chain 31 has a certain flexibility, which can fit the shape of the product to be measured, and the tooling can adapt to products to be measured of different sizes, thereby improving the application range of the tooling.

[0029] In order to improve the strength of the base 1, please refer to Figure 1 In a preferred embodiment, the base 1 comprises a bottom plate 11, a support rod 12 and a top plate 13, the support rod 12 is connected to the bottom plate 11, and the top plate 13 is connected to one end of the support rod 12 away from the bottom plate 11.

[0030] In use, the bottom plate 11 is the basic part of the entire base 1, which is in direct contact with the installation surface of the ground or test bench. The support rod 12 is connected to the bottom plate 11, and its main function is to separate the top plate 13 from the bottom plate 11 by a certain distance, thereby determining the height position of the tooling as a whole, providing installation space and support basis for components such as the lifting plate 21 and the driving assembly 22. The top plate 13 is located at one end of the support rod 12 away from the bottom plate 11, and it directly bears the pressure from components such as the lifting plate 21 and the product to be measured. The top plate 13 evenly distributes these concentrated pressures to each support rod 12, which is then transmitted to the bottom plate 11 through the support rod 12.

[0031] In order to reduce the possibility of the product to be measured slipping, please refer to Figure 1 In a preferred embodiment, the supporting mechanism 2 further comprises an anti-skid layer 23, which is connected to one side of the lifting plate 21 close to the product to be measured. The material of the anti-skid layer 23 is nylon, and the thickness is 10 mm.

[0032] In use, the anti-skid layer 23 can increase the friction between the lifting plate 21 and the product to be measured, preventing the product to be measured from slipping on the lifting plate 21. During the process of the traction test, the product to be measured may be subjected to various forces, such as centrifugal force generated by rotation, vibration during the test process, etc. The anti-skid layer 23 can effectively prevent the product to be measured from displacing due to these external forces, ensuring that the product to be measured maintains a stable position during the test process, thereby improving the accuracy and reliability of the test results.

[0033] In order to drive the lifting plate 21 to lift, please refer to Figure 1In a preferred embodiment, the driving assembly 22 comprises a screw rod 221 and a guide rod 222, the guide rod 222 is connected to the lifting plate 21, the guide rod 222 is slidingly connected to the top plate 13, the screw rod 221 is rotatably connected to the lifting plate 21, and the screw rod 221 is threadedly connected to the top plate 13.

[0034] In use, the screw rod 221 is rotatably connected to the lifting plate 21 and threadedly connected to the top plate 13. When a rotating force is applied to the screw rod 221 to make it rotate, the rotating movement of the screw rod 221 will be converted into a linear movement along its axial direction due to the screw transmission characteristics of the threaded pair between the screw rod 221 and the top plate 13. The guide rod 222 is connected to the lifting plate 21 and slidingly connected to the top plate 13. The main function of the guide rod 222 is to provide accurate guidance for the lifting movement of the lifting plate 21, ensuring that the lifting plate 21 can only move linearly along the axial direction of the guide rod 222, avoiding the lifting plate 21 from deviating or shaking during the lifting or lowering process.

[0035] In order to improve the stability of the screw rod 221, please refer to Figure 1 In a preferred embodiment, the driving assembly 22 further comprises a first locking nut 223, the first locking nut 223 is threadedly connected to the screw rod 221, and the first locking nut 223 is used to abut against the top plate 13.

[0036] In use, the first locking nut 223 is threadedly connected to the screw rod 221 and cooperates with the thread of the screw rod 221. When the first locking nut 223 is rotated, the nut will move along the axial direction of the screw rod 221 due to the screw structure of the thread. When the first locking nut 223 gradually approaches the top plate 13 and finally abuts against the top plate 13, a pressure is generated between the nut and the top plate 13. According to the principle that forces act on each other, the top plate 13 will exert a counterforce on the nut, and this counterforce is transmitted to the screw rod 221 through the nut, so that the screw rod 221 is subjected to a fixed force in the axial direction, thereby limiting the rotation and axial movement of the screw rod 221.

[0037] In order to facilitate manual rotation of the screw rod 221, please refer to Figure 1 In a preferred embodiment, the driving assembly 22 further comprises a handle 224, the handle 224 is connected to the screw rod 221.

[0038] In use, the handle 224 provides an easy-to-grip and force-exerting component for the operator. Compared with directly rotating the screw rod 221, using the handle 224 can more easily exert a rotating force, especially when a larger torque is needed to rotate the screw rod 221, the handle 224 can significantly reduce the operation difficulty.

[0039] In order to reduce the possibility of damage to the measured product, please refer toFigure 1 In a preferred embodiment, the fixing mechanism 3 further comprises a hose 33 made of rubber, which is sleeved on the chain 31 and used to abut against the measured product.

[0040] In use, when the chain 31 is used to fix and constrain the measured product, the chain 31 may generate a large pressure on the surface of the measured product and even cause damage due to its rigidity. The hose 33 sleeved on the chain 31 plays a role of a buffer pad. When the chain 31 contacts the measured product, the hose 33 can absorb and disperse the pressure of the chain 31 on the measured product by its elastic deformation, reduce the direct impact force of the chain 31 on the surface of the measured product, and thus avoid damage such as indentation and wear on the surface of the measured product, thereby protecting the integrity and surface quality of the measured product.

[0041] To lock the chain 31, please refer to Figure 1 In a preferred embodiment, the locking assembly 32 comprises two bolts 321, which are respectively connected to the two ends of the chain 31 and are threadedly connected to the top plate 13.

[0042] In use, the bolts 321 are connected to the two ends of the chain 31 and serve as a connecting medium between the chain 31 and the top plate 13. By passing the bolts 321 through the corresponding hole positions of the ends of the chain 31 and cooperating with the threaded holes on the top plate 13, the chain 31 and the top plate 13 are reliably connected, so that the chain 31 can stably be in the working position and provide a basic support for constraining and fixing the measured product and other components. Since the bolts 321 are threadedly connected to the top plate 13, the bolts 321 can move up and down in the threaded holes of the top plate 13 when the bolts 321 are rotated. By adjusting the rotation depth of the bolts 321 in the top plate 13, the distance between the two ends of the chain 31 can be changed, so as to adjust the tensioning degree of the chain 31. When the measured product needs to be fixed, the bolts 321 can be appropriately tightened to tension the chain 31, so as to tightly hold the measured product and ensure that the measured product does not shake or displace during the test. When the measured product needs to be disassembled or adjusted, the bolts 321 can be loosened to relax the chain 31, thereby facilitating the operation.

[0043] To improve the stability of the bolts 321, please refer to Figure 2 In a preferred embodiment, the locking assembly 32 further comprises a second locking nut 322, which is threadedly connected to the bolt 321 and used to abut against the top plate 13.

[0044] In use, the second locking nut 322 is threadedly connected with the bolt 321, and when it is tightened against the top plate 13, additional friction is generated at the threaded connection. This friction effectively prevents the bolt 321 from loosening when subjected to vibration, impact or other external forces. Compared with relying only on the threaded connection of the bolt 321 with the top plate 13, the presence of the second locking nut 322 greatly increases the friction of the threaded connection, improves the reliability of the connection, and ensures that the connection of the two ends of the chain 31 with the top plate 13 remains stable during operation of the equipment.

[0045] To further improve the stability of the bolt 321, please refer to Figure 2 In a preferred embodiment, the locking assembly 32 further comprises a gasket 323, which is sleeved on the bolt 321, and the gasket 323 is located between the top plate 13 and the second locking nut 322.

[0046] In use, the gasket 323 can make the pressure of the second locking nut 322 on the top plate 13 more uniform, avoiding damage or failure of the connected parts due to excessive local pressure. Uniform pressure distribution helps to maintain the stability of the connection.

[0047] In order to better understand the present application, the following will be combined with Figure 1 - Figure 2 The working principle of the technical solution of the present application, a drag test bench fixing tool, is described in detail: when it is necessary to fix products of different sizes or heights for measurement, the driving assembly 22 is started. The fixed end of the driving assembly 22 is stably connected to the base 1, providing stable support. The movable end is telescopic, driving the lifting plate 21 connected thereto to move vertically on the base 1. The chain 31 is wound around the product to be measured, and the chain 31 has a certain flexibility and can conform to the shape of the product to be measured. Then, the chain 31 is locked by the locking assembly 32. Thus, the product to be measured is firmly bound in the horizontal direction.

[0048] The specific embodiments of the present application described above do not constitute a limitation on the scope of protection of the present application. Any other corresponding changes and modifications made in accordance with the technical concept of the present application shall be included within the scope of protection of the claims of the present application.

Claims

1. A drag test bench fixing tool characterized by, The utility model relates to a product testing device, which comprises: a base; a supporting mechanism, which comprises a lifting plate and a driving assembly, the lifting plate is connected to the base, the lifting plate has a supporting surface for supporting a product under test, the driving assembly has a fixed end connected to the base and a movable end connected to the lifting plate; and a fixing mechanism, which comprises a chain and a locking assembly, the chain is used for winding around the product under test, and the locking assembly is fixed to both ends of the chain and detachably connected to the lifting plate.

2. The test bench fixture of claim 1, wherein, The base comprises a bottom plate, a support rod and a top plate, the support rod is connected to the bottom plate, and the top plate is connected to one end of the support rod away from the bottom plate.

3. The test bench fixture of claim 1, wherein, The supporting mechanism further comprises an anti-skid layer, which is connected to one side of the lifting plate close to the product under test.

4. The test bench fixture of claim 2, wherein, The driving assembly comprises a screw rod and a guide rod, the guide rod is connected to the lifting plate, the guide rod is slidingly connected to the top plate, the screw rod is rotatably connected to the lifting plate, and the screw rod is threadedly connected to the top plate.

5. The test bench fixture of claim 4, wherein, The driving assembly further comprises a first locking nut, which is threadedly connected to the screw rod and used for abutting against the top plate.

6. The test bench fixture of claim 4, wherein, The driving assembly further comprises a handle, which is connected to the screw rod.

7. The test bench fixture of claim 1, wherein, The fixing mechanism further comprises a hose, which is sleeved on the chain and used for abutting against the product under test.

8. The test bench fixture of claim 2, wherein, The locking assembly comprises two bolts, the two bolts are respectively connected to both ends of the chain, and the bolts are threadedly connected to the top plate.

9. The test bench fixture of claim 8, wherein, The locking assembly further comprises a second locking nut, which is threadedly connected to the bolts and used for abutting against the top plate.

10. The test bench fixture of claim 9, wherein, The locking assembly further comprises a gasket, which is sleeved on the bolts and located between the top plate and the second locking nut.

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