Mechanical group belt pull-out test sample preparation cutting device

Abstract

This invention relates to a mechanical strip pull-out test sample preparation and cutting device, belonging to the technical field of petroleum simulation test sample preparation devices. It includes a support mechanism to provide support for the loading and cutting mechanisms; a loading mechanism for clamping and fixing the strip; and a cutting mechanism for cutting the strip. The purpose of this invention is to achieve integrated sample preparation, ensure accurate sample dimensions, standardize sample cuts, prevent human error, achieve standardized sample preparation, improve the accuracy of test data, and enhance the safety of the sample preparation process.

Description

Technical Field

[0001] This invention relates to a mechanical strip pull-out test sample preparation and cutting device, and particularly to a strip narrow V-belt edge-wrapped connecting layer pull-out strength test sample preparation and cutting device for high-speed and high-power transmission and ordinary power transmission, belonging to the technical field of petroleum simulation test sample preparation device. Background Technology

[0002] In the vast field of oil extraction, pumping units, as key equipment, undertake the important task of extracting crude oil from underground to the surface. Behind the efficient operation of pumping units, the connecting belt, as a power transmission component, is responsible for accurately and efficiently transmitting the power generated by the motor to the various moving parts of the pumping unit, enabling the sucker rod to move up and down in a regular pattern, thereby achieving the extraction of crude oil.

[0003] Linked belts for oil pumping units are transmission belts specifically designed for oil pumping units, typically composed of multiple V-belts tightly connected by a connecting layer. Compared to ordinary V-belts, linked belts utilize high-quality rubber materials and high-strength fiber-reinforced materials such as polyester and aramid. This combination of materials gives linked belts excellent tensile strength and fatigue resistance. Multiple V-belts are linked together by the connecting layer to form a single, integrated linked belt. This structure effectively suppresses instability phenomena such as vibration and misalignment that may occur with individual belts during transmission. Its unique V-shaped cross-section design and the synergistic effect of multiple belts significantly increase the contact area between the linked belt and the pulleys, generating stronger friction and effectively reducing energy loss during transmission. Therefore, linked belts offer higher strength, higher transmission efficiency, greater stability, and longer service life, making them better suited to the complex and harsh working environment of oil pumping units, and thus widely used.

[0004] The manufacturing quality of banded belts directly affects their various performance characteristics. Conducting product quality testing is an effective measure to control product quality. Through product quality testing, performance defects can be identified, promoting the selection of optimal materials and improvements in production processes, thereby enhancing product quality and adapting to complex operating conditions. Among the testing parameters for banded belts, the pull-out strength of the connecting layer is a crucial indicator.

[0005] Pull-out strength tests on banded belts verify the rationality of the design. These tests check whether the materials, structure, and connection methods used in the design phase meet the expected strength requirements. Unsatisfactory test results help designers improve and optimize the product to enhance its performance and quality. Pull-out strength tests also guide the selection of raw materials, as different batches of raw materials may have quality variations during production. Pull-out strength tests help select raw materials that meet strength requirements, ensuring the stable and reliable quality of the banded belt. Furthermore, pull-out strength tests prevent breakage accidents during use. Banded belts play a crucial transmission role in equipment such as pumping units. Insufficient pull-out strength may lead to sudden breakage during operation, causing equipment failure, downtime, or even safety accidents, resulting in injury to personnel and equipment. The working environment of pumping units is typically complex, subject to impact, vibration, and overload. Sufficient pull-out strength ensures that the banded belt maintains its connection stability under these harsh conditions, preventing accidental detachment.

[0006] The pull-out strength test of banded belts is conducted according to the method specified in the standard "Banded Narrow V-Belts" (HG / T2819-2010), which clearly defines the dimensions of the pull-out specimens. From the perspective of specimen structure analysis, the size of the pull-out area directly affects the accuracy of the test data. Currently, specimen preparation is done manually. Since banded belts are primarily made of rubber, which has high elasticity and ductility, this introduces significant errors in dimensional measurement and cutting, thus affecting the accuracy of the test data. Furthermore, manual specimen preparation poses a risk of hand injuries and other safety hazards. The existing Chinese utility model patent application (No. 201220625099.0) discloses an automatic cutting device for vulcanizing V-belts, comprising a frame, a lifting guide, a guide frame, a blade holder, a connecting rod, and a cutting blade. The frame can be the original vulcanizing machine frame. The lifting guide is hinged to the frame, and a plunger-type cylinder is installed on the lifting guide. The lifting guide is also hinged to the guide frame, and a connecting rod is welded to the guide frame. The cutting blade has drilled holes and is connected to the connecting rod. The blade holder is bolted to the guide frame, and the blade holder has equidistant cutting blade limiting grooves. The cutting blade is mounted on the connecting rod and is limited and fixed by the limiting grooves on the blade holder. However, this cutting device cannot effectively fix the V-belt during the cutting process. To meet the requirements for sample preparation and improve safety, a mechanical V-belt pull-out test sample preparation device was designed. The main problems to be solved in the existing test preparation process are as follows: (1) the sample cut is not standardized, which affects the accuracy of the test data; (2) there is a risk of mechanical damage in the sample preparation process; (3) the connecting band cannot be well fixed during the cutting process to ensure the accuracy of the cutting. Summary of the Invention

[0007] This invention proposes a mechanical strip pull-out test sample preparation and cutting device. Its purpose is to achieve integrated sample preparation, ensure accurate sample size, standardize sample cuts, prevent human error, achieve standardized sample preparation, improve the accuracy of test data, and enhance the safety of the sample preparation process. The strip is fixed by the cooperation of the frame and the support block, which prevents the strip from moving during the cutting process.

[0008] The technical solution adopted in this invention is a mechanical strip pull-out test sample preparation and cutting device, comprising:

[0009] The support mechanism provides support for the loading and cutting mechanisms.

[0010] The loading mechanism is used to compress and secure the belt assembly.

[0011] A cutting mechanism used to cut the belt assembly.

[0012] Furthermore, the loading mechanism is mounted on the support mechanism, and the cutting mechanism is located below the loading mechanism.

[0013] Furthermore, the support mechanism includes a base, a bracket, and a support plate; the bracket is mounted on the base, and the support plate is disposed on the bracket.

[0014] Furthermore, the bracket includes a stud and an adjusting nut, the stud being inserted into the support plate, and the adjusting nut being sleeved on the stud and clamping both sides of the support plate.

[0015] Furthermore, the loading mechanism includes a bearing housing, a bearing, a pressure plate, a guide sleeve, a flat key, an eccentric wheel, a rotating shaft, a return spring, a pressure cap, a guide post, and a loading handle; the rotating shaft is connected to the bearing housing via the bearing, the bearing housing is mounted on the support plate, the eccentric wheel is connected to the rotating shaft via a flat key, the loading handle is sleeved around the rotating shaft and fixed by a set screw, the guide sleeve is located inside the support plate, the guide post passes through the guide sleeve and is connected to the pressure plate via a countersunk screw, the pressure cap is sleeved around the guide post, the two ends of the return spring are fixed between the pressure cap and the guide sleeve, and the guide post is located below the eccentric wheel.

[0016] Furthermore, the bearing is mounted on the bearing housing via an elastic retaining ring.

[0017] Furthermore, the cutting mechanism includes a cutter, a straightener, a support block, a positioning pin, a frame, and a pad. The cutter is placed on the straightener, the support block is placed below the straightener, the frame and the support block cooperate to position the connecting belt, and the frame is fixed to the pad by the positioning pin.

[0018] Furthermore, a retaining ring is placed between the pressure plate and the countersunk screw.

[0019] Furthermore, the pad is located on the base.

[0020] Furthermore, the loading handle drives the eccentric wheel to move via the rotating shaft, transmitting the clamping force to the pressure plate through the guide post; during unloading, the reset spring drives the pressure plate to move upward through the guide post.

[0021] This invention discloses a mechanical strip pull-out test sample preparation and cutting device. Its advantages include: the design of the support mechanism, loading mechanism, and cutting mechanism allows for one-time sample preparation; precise loading and cutting are achieved through mechanical control, improving the accuracy and reliability of sample dimensions and solving the problem of sample size errors caused by repeated manual cutting; the use of an eccentric wheel loading method ensures stable and controllable loading force, eliminating cutting deviations caused by rubber elasticity; and the use of a centering body with a clearance opening that cooperates with the cutter prevents cutter swaying, protects the cutter during loading, and also improves dimensional accuracy, thereby enhancing the preparation precision and safety of strip samples. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 The figure shown is a three-dimensional front view of the structure of the present invention;

[0024] Figure 2 The figure shown is a three-dimensional side view of the structure of the present invention;

[0025] Figure 3 The diagram shows a top view of the support plate, pressure cap, stud, and bearing seat, as well as a side view of the support plate in this invention.

[0026] Figure 4 The diagram shown is a schematic of the cutting blade in this invention;

[0027] Figure 5 The diagram shown is a schematic of the corrective body in this invention;

[0028] Figure 6 The figure shows the bottom view, side view, and cross-sectional view of the support block in this invention.

[0029] Figure 7 The figure shown is a top view of the frame in this invention;

[0030] Figure 8 As shown Figure 1 Enlarged view of a portion of the image;

[0031] Figure 9 As shown Figure 6Enlarged view of a portion of the image;

[0032] Figure 10 The image shown is a top view of the sample with a band.

[0033] As shown in the figure:

[0034] 1. Base; 2. Adjusting nut; 3. Stud; 4. Support plate; 5. Pressure plate; 6. Fixing bolt; 7. Retaining ring; 8. Countersunk screw; 9. Guide sleeve; 10. Bearing seat; 11. Bearing; 12. Elastic retaining ring; 13. Flat key; 14. Eccentric wheel; 15. Rotating shaft; 16. Return spring; 17. Pressure cap; 18. Cutting blade; 19. Straightening body; 20. Loading handle; 21. Set screw; 22. Support block; 23. Positioning pin; 24. Frame; 25. Pad; 26. Guide post; 27. Clearance opening; 28. Hollow serration; 29. ​​Through groove; 30. Positioning hole; 31. Pin hole; 32. Blade body; 33. Blade handle; 34. Reception opening; 100. Support mechanism; 200. Loading mechanism; 300. Cutting mechanism. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] To address the aforementioned technical problems and to further understand the content of this invention, the technical solution is further elaborated below in conjunction with specific embodiments.

[0037] Example 1: As Figures 1-9 As shown, this embodiment provides a mechanical strip pull-out test sample preparation and cutting device, including a support mechanism 100, a loading mechanism 200, and a cutting mechanism 300. The support mechanism 100 provides support for the loading mechanism 200 and the cutting mechanism 300; the loading mechanism 200 is used to press and fix the strip; and the cutting mechanism 300 is used to cut the strip. The loading mechanism 200 is mounted on the support mechanism 100, and the cutting mechanism 300 is located below the loading mechanism 200.

[0038] As a specific implementation of this embodiment, the support mechanism 100 includes a base 1, a bracket, and a support plate 4; the bracket is installed on the base 1, and the support plate 4 is provided on the bracket.

[0039] As a specific implementation of this embodiment, the loading mechanism 200 specifically includes a bearing seat 10, a bearing 11, a pressure plate 5, a guide sleeve 9, a flat key 13, an eccentric wheel 14, a rotating shaft 15, a return spring 16, a pressure cap 17, a guide post 26, and a loading handle 20. The rotating shaft 15 is connected to the bearing seat 10 through the bearing 11. The bearing 11 is mounted on the bearing seat 10 through an elastic retaining ring 12. The bearing seat 10 is mounted on the support plate 4 through an internal hexagon screw. The eccentric wheel 14 and the rotating shaft 15 are connected through a flat key 13. The loading handle 20 is sleeved on the outer circumference of the rotating shaft 15 and fixed by a set screw 21. The support plate 4 has a sleeve hole. The guide sleeve 9 is set in the sleeve hole of the support plate 4. The bottom end of the guide post 26 passes through the guide sleeve 9. The pressure plate 5 is connected to the guide post 26 through a countersunk screw 8 and a retaining ring 7. The guide post 26 is located below the eccentric wheel 14. The pressure cap 17 is sleeved on the guide post 26. The two ends of the return spring 16 are fixed between the pressure cap 17 and the guide sleeve 9. During loading, the loading handle 20 drives the eccentric wheel 14 to rotate via the rotating shaft 15. When the eccentric wheel 14 contacts the guide post 26, the clamping force is transmitted to the pressure plate 5 through the guide post 26. During unloading, the eccentric wheel 14 disengages from the guide post 26, and the return spring 16 drives the pressure plate 5 to move upward through the guide post 26.

[0040] As a specific implementation of this embodiment, the cutting mechanism 300 includes a cutting blade 18, a straightening body 19, a support block 22, a positioning pin 23, a frame 24, and a pad 25. The cutting blade 18 includes a blade body 32 and a handle 33, with the blade body 32 fixed to the handle 33. The straightening body 19 has a clearance opening 27 in the middle, the size of which matches the specifications of the cutting blade 18. This ensures that the cutting blade 18 can pass through the clearance opening 27 while preventing the cutting blade 18 from swinging during cutting. The straightening body 19 protects the cutting blade 18. The frame 24 and the support block 22 cooperate to position the connecting belt. Specifically, the support block 22 is placed below the straightening body 19, and its lower surface has hollow serrations 28. The hollow serrations 28 are connected to the connecting belt... The teeth of the belt interlock and are interlocked. The distribution of the hollow serrations 28 on the support block 22 is the same as the shape of the bundled belt sample. The shape of the blade body 32 is also the same as the shape of the bundled belt sample. There are also blade grooves 29 between the hollow serrations 28 for the blade body 32 to pass through. The frame 24, support block 22 and straightener 19 are all provided with positioning holes 30 in the middle. The frame 24, support block 22 and straightener 19 are installed from bottom to top and are positioned by pins passing through the positioning holes 30. The frame 24 is provided with pin holes 31. The frame 24 is fixed to the pad 25 by positioning pins 23 passing through the pin holes 31. The pad 25 is placed on the base 1 to prevent displacement during loading. The frame 24 is provided with a hollow receiving opening 34 in the middle for placing the bundled belt.

[0041] Example 2: Figures 1-9As shown, based on Embodiment 1, to facilitate the adjustment of the height of the support plate 4, as a specific implementation of this embodiment, the bracket includes a stud 3 and adjusting nuts 2. The stud 3 penetrates the support plate 4, and two adjusting nuts 2 are sleeved on the stud 3 and clamp the two sides of the support plate 4. By adjusting the position of the two adjusting nuts 2 on the stud 3, the height of the support plate 4 can be changed to accommodate different specifications of the connecting belt. In addition, a fixing bolt 6 is also sleeved on the stud 3 to stably fix the stud 3 to the base 1. During operation, the height of the support plate 4 is adjusted according to the structural dimensions of the sample. The connecting belt is placed into the receiving opening 34 of the frame 24, and the support block 22 is placed on top. At this time, the connecting belt is positioned and fixed by the frame 24 and the support block 22. The straightener 19 is placed on the support block 22, and the frame 24 is fixed by the positioning pin 23. The straightener 19, the support block 22, and the positioning hole 30 of the frame 24 are positioned and fixed by pins. At this time, the cutter 18 is in contact with the connecting belt. During loading... By slowly rotating the loading handle 20, the eccentric wheel 14 rotates around the rotating shaft 15. When the eccentric wheel 14 contacts the guide post 26, the guide post 26 is slowly moved towards the pressure plate 5. The pressure plate 5 presses the cutter 18 downward. At this time, the return spring 16 is compressed. The cutter 18 passes through the straightener 19 and continues to pass through the support block 22 to complete the cutting action of the connecting belt. Then, the loading handle 20 is rotated again, so that the eccentric wheel 14 and the guide post 26 separate. The return spring 16 drives the pressure plate 5 to move upward and reset through the guide post 26. The positioning pin 23 is unscrewed and the frame 24 is taken out. The cut connecting belt sample is taken out from the frame 24.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mechanical strip pull-out test sample preparation and cutting device, characterized in that, include: A support mechanism (100) provides support for the loading mechanism (200) and the cutting mechanism (300); The loading mechanism (200) is used to press and fix the banded belt; The cutting mechanism (300) is used to cut the banded belt.

2. The mechanical strip pull-out test sample preparation and cutting device according to claim 1, characterized in that, The loading mechanism (200) is mounted on the support mechanism (100), and the cutting mechanism (300) is located below the loading mechanism (200).

3. The mechanical strip pull-out test sample preparation and cutting device according to claim 2, characterized in that, The support mechanism (100) includes a base (1), a bracket and a support plate (4); the bracket is mounted on the base (1) and the support plate (4) is provided on the bracket.

4. The mechanical strip pull-out test sample preparation and cutting device according to claim 3, characterized in that, The bracket includes a stud (3) and an adjusting nut (2). The stud (3) is inserted into the support plate (4), and the adjusting nut (2) is sleeved on the stud (3) and clamps the two sides of the support plate (4).

5. The mechanical strip pull-out test sample preparation and cutting device according to claim 1, characterized in that, The loading mechanism (200) includes a bearing housing (10), a bearing (11), a pressure plate (5), a guide sleeve (9), a flat key (13), an eccentric wheel (14), a rotating shaft (15), a return spring (16), a pressure cap (17), a guide post (26), and a loading handle (20). The rotating shaft (15) is connected to the bearing housing (10) via the bearing (11). The bearing housing (10) is mounted on the support plate (4). The eccentric wheel (14) and the rotating shaft (15) are connected. Connected by a flat key (13), the loading handle (20) is sleeved on the outer circumference of the rotating shaft (15) and fixed by a set screw (21). The guide sleeve (9) is set inside the support plate (4). The guide post (26) passes through the guide sleeve (9) and is connected to the pressure plate (5) by a countersunk screw (8). The pressure cap (17) is sleeved on the outer circumference of the guide post (26). The two ends of the return spring (16) are fixed between the pressure cap (17) and the guide sleeve (9). The guide post (26) is located below the eccentric wheel (14).

6. The mechanical strip pull-out test sample preparation and cutting device according to claim 5, characterized in that, The bearing (11) is mounted on the bearing housing (10) via an elastic retaining ring (12).

7. The mechanical strip pull-out test sample preparation and cutting device according to claim 5, characterized in that, A retaining ring (7) is placed between the pressure plate (5) and the countersunk screw (8).

8. The mechanical strip pull-out test sample preparation and cutting device according to claim 3, characterized in that, The cutting mechanism (300) includes a cutter (18), a straightener (19), a support block (22), a positioning pin (23), a frame (24), and a pad (25). The cutter (18) is placed on the straightener (19), the support block (22) is placed below the straightener (19), the frame (24) and the support block (22) cooperate to position the connecting belt, and the frame (24) is fixed on the pad (25) by the positioning pin (23).

9. The mechanical strip pull-out test sample preparation and cutting device according to claim 7, characterized in that, The pad (25) is located on the base (1).

10. The mechanical strip pull-out test sample preparation and cutting device according to claim 5, characterized in that, The loading handle (20) drives the eccentric wheel (14) to move through the rotating shaft (15), and transmits the clamping force to the pressure plate (5) through the guide post (26); when unloading, the reset spring (16) drives the pressure plate (5) to move upward through the guide post (26).

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