A device for testing the adhesive properties of friction materials

Abstract

The utility model relates to the technical field of friction material test, especially relates to a kind of friction material adhesion characteristic test device.The technical scheme thereof includes: base and the transmission mechanism, fixed frame subassembly, guide rod mechanism etc. installed thereon.Transmission mechanism contains hand wheel and transmission box, and scale indicating device is set by transmission subassembly to convert rotary motion to linear motion.The fixed frame subassembly contains movable first fixed frame and fixed second fixed frame, and first fixed frame is slidably connected by guide rod.Tension meter is connected with the linear output end of transmission mechanism and first fixed frame, for measuring the adhesion force when friction plate and test block relative motion.Gripping mechanism can adjust clamping test subassembly, and pressure adjusting mechanism adjusts contact pressure by pad.The utility model can efficiently obtain friction material adhesion characteristic data by accurately controlling contact pressure and motion parameters, combined with scale indicating and tension measurement, to provide reliable basis for optimizing material formula and process, with practical value and popularization significance.

Description

Technical Field

[0001] This utility model relates to the field of friction material testing technology, specifically to a device for testing the adhesion characteristics of friction materials. Background Technology

[0002] Friction materials are components used in power machinery that rely on friction to perform braking and transmission functions. They mainly include brake pads and clutch discs. Brake pads are used for braking, and clutch discs are used for transmission; all mechanical equipment and moving vehicles must have braking or transmission devices. Friction materials are key components in these braking or transmission devices. Their primary function is to absorb or transmit power through friction. For example, clutch discs transmit power, and brake pads absorb kinetic energy. They enable mechanical equipment and various motor vehicles to operate safely and reliably. Therefore, friction materials are a widely used and crucial material.

[0003] In the field of friction material performance testing, traditional testing equipment often suffers from drawbacks such as insufficient transmission stability, limited measurement accuracy, and poor operational convenience. Existing equipment mostly uses direct drive or simple gear transmission, which is prone to movement of the fixed frame due to external disturbances, affecting test reliability. At the same time, it lacks an intuitive displacement indication system, requiring operators to use additional measuring tools to obtain the movement distance, reducing testing efficiency. In addition, the clamping mechanism lacks flexibility and is difficult to adapt to test components of different sizes, increasing the difficulty of operation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a testing device for the adhesion characteristics of friction materials, thus solving the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows: A testing apparatus for the adhesion properties of friction materials, comprising: Base; A transmission mechanism is mounted on the base. The transmission mechanism includes a handwheel and a transmission box. The handwheel is operable to drive the transmission component within the transmission mechanism. The transmission component converts rotational motion into linear motion and is equipped with a scale indicator. The mounting bracket assembly includes a second mounting bracket and a first mounting bracket, wherein the second mounting bracket is fixedly mounted on the base and the first mounting bracket is movably mounted on the base; The guide rod mechanism includes a first guide rod, which is supported on a second fixed frame and a support block, and the first fixed frame is slidably connected to the first guide rod. A tensile measuring mechanism includes a tensile gauge connected between the linear output end of the transmission mechanism and the first fixed frame; A clamping mechanism, mounted on the first and second fixed frames, is used to adjustably clamp the test component; The test assembly includes a friction plate and a test block, which are respectively clamped on the first fixing frame and the second fixing frame; A pressure adjustment mechanism includes a pad disposed between the test assembly and the fixing frame assembly for adjusting the contact pressure between the friction plate and the test block; The handwheel is operated to drive the first fixed frame to move through the transmission mechanism, causing the friction plate and the test block to move relative to each other, and the adhesion force is measured by the tensile force measuring mechanism.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the transmission assembly includes a worm gear mechanism and a rack and pinion mechanism. The worm gear mechanism includes a worm connected to the handwheel and a worm wheel meshing with the worm. The rack and pinion mechanism includes a gear plate coaxially arranged with the worm wheel and a rack meshing with the gear plate. The rack constitutes the linear output end of the transmission mechanism.

[0008] The beneficial effects of adopting the above-mentioned further solutions are: The worm gear mechanism has self-locking properties, ensuring stable transmission and preventing the first fixed frame from moving due to external force after the handwheel stops operating. It also allows for a large transmission ratio, requiring only a small force to move the first fixed frame when operating the handwheel, reducing operator workload. The rack and pinion mechanism precisely converts rotary motion into linear motion, ensuring the straightness and accuracy of the first fixed frame's movement. This results in smoother and more accurate relative movement between the friction plate and the test block, facilitating the acquisition of reliable test data.

[0009] Furthermore, the scale indicator includes a scale on the handwheel and a scale on the limit plate on the transmission box. When the handwheel rotates, its scale is misaligned with the scale on the limit plate to display the rotation angle, thereby indirectly displaying the movement distance of the rack. The transmission box is provided with a limit block, and the rack restricts its sliding direction through the limit block to ensure linear movement of the rack.

[0010] The beneficial effects of adopting the above-mentioned further solutions are: The scale design on the handwheel and limit plate allows operators to quickly and intuitively read the handwheel rotation angle through the scale misalignment, and indirectly and accurately display the rack movement distance, i.e., the first fixed frame movement distance. This eliminates the need for complex calculations or additional measuring tools, facilitating precise control of the first fixed frame's movement and improving testing efficiency and accuracy. The limit block inside the transmission box restricts the rack's sliding direction, ensuring it always moves in a straight line, preventing wobbling or offset during the first fixed frame's movement, ensuring accurate relative movement between the friction plate and the test block, and improving the reliability of test results.

[0011] Furthermore, the first fixing frame is slidably mounted on the first guide rod via a slider, and the first fixing frame is provided with a fixing rod, which is connected and fixed to the pull rod of the tension gauge.

[0012] The beneficial effects of adopting the above-mentioned further solutions are: The first fixed frame slides on the first guide rod via a slider, ensuring the linearity and stability of its movement and making the relative movement of the friction plate and the test block smoother. A fixed rod is installed on the first fixed frame to connect and fix it to the tension gauge rod, allowing the tension gauge to directly and accurately measure the adhesive force between the friction plate and the test block. This avoids measurement errors caused by unstable connections or too many transmission links, improving the accuracy and reliability of the measurement results.

[0013] Furthermore, the clamping mechanism includes a clamping block assembly, which includes a second guide rod, a movable clamping block, and a bolt. The second guide rod is mounted on the first or second fixed frame, the movable clamping block is slidably sleeved on the second guide rod, and the bolt is rotatably mounted on the movable clamping block and engages with a slider on the fixed frame assembly. By rotating the bolt, the movable clamping block is driven to move to clamp or release the test component.

[0014] The beneficial effects of adopting the above-mentioned further solutions are: This clamping block assembly design allows the movable clamping block to move flexibly on the second guide rod. By simply rotating the bolt, the movable clamping block can be easily moved closer to or away from the fixed frame, enabling rapid clamping or loosening of the test component, making operation convenient and quick. Simultaneously, the engagement design between the bolt and the slider ensures stable clamping; the test component will not loosen due to the relative movement of the friction plate and the test block during testing, ensuring smooth testing. Furthermore, it can adapt to test components of different sizes and shapes, exhibiting good versatility.

[0015] Furthermore, the test assembly includes a substrate, the friction pad and the test block are respectively fixed on different substrates, the substrate is clamped on the first fixing frame and the second fixing frame by the clamping mechanism, and the pad is disposed between the substrate and the first fixing frame or the second fixing frame, and the contact pressure is adjusted by increasing or decreasing the number of pads.

[0016] The beneficial effects of adopting the above-mentioned further solutions are: The friction pad and test block are fixed to the base plate respectively, facilitating the installation and removal of the test assembly. By placing shims between the base plate and the mounting bracket, operators can easily adjust the contact pressure between the friction pad and the test block by adding or removing the number of shims according to testing needs, meeting the pressure requirements under different testing conditions. This improves the flexibility and efficiency of the test, and the adjustment method is simple and easy to perform, requiring no complicated tools or operating procedures.

[0017] Furthermore, the support block is mounted on the base and located on both sides of the transmission box to support the first guide rod.

[0018] The beneficial effects of adopting the above-mentioned further solutions are: The support block provides stable support for the first guide rod, ensuring its straightness and stability. When the first fixed frame slides on the first guide rod, the support block prevents the first guide rod from deforming or shaking due to force, thereby ensuring the accuracy of the first fixed frame's movement direction and making the relative movement of the friction plate and the test block more stable, which is beneficial to improving the reliability and accuracy of the test results.

[0019] Furthermore, the worm gear is rotatably mounted inside the transmission box and is connected to the worm wheel and the gear plate via a rotating shaft, and the handwheel is directly fixed to one end of the worm gear.

[0020] The beneficial effects of adopting the above-mentioned further solutions are: The worm gear is mounted inside the transmission box, ensuring its stability and precision while minimizing the impact of external factors on the transmission. A rotating shaft connects the worm wheel and the gear disc, allowing the worm wheel's rotation to be accurately transmitted to the gear disc, achieving continuous and stable motion. The handwheel is directly fixed to one end of the worm, simplifying the transmission structure, reducing energy loss and transmission errors, improving transmission efficiency and reliability, and enabling operators to more precisely control the movement of the first fixed frame.

[0021] This invention provides a testing device for the adhesion characteristics of friction materials. It has the following beneficial effects: The transmission assembly employs a combination of a worm gear mechanism and a rack and pinion mechanism. The worm gear mechanism is self-locking, ensuring stability during transmission and preventing the first fixed frame from moving due to external force after the handwheel has stopped operating. Simultaneously, the worm gear transmission can achieve a large transmission ratio, requiring only a small force to move the first fixed frame when operating the handwheel, reducing the operator's workload. The rack and pinion mechanism further converts rotational motion precisely into linear motion, ensuring the straightness and accuracy of the first fixed frame's movement. This results in smoother and more accurate relative movement between the friction plate and the test block during testing, facilitating the acquisition of reliable test data.

[0022] The scale indicator is ingeniously designed, with scales set on both the handwheel and the limit plate of the transmission box. When the handwheel rotates, its scale misaligns with the scale on the limit plate, allowing the operator to quickly and intuitively read the handwheel's rotation angle. Since there is a fixed correspondence between the handwheel's rotation angle and the rack's movement distance, the operator can indirectly and accurately display the rack's movement distance, which is also the movement distance of the first fixed frame. This intuitive scale display method eliminates the need for complex calculations or additional measuring tools, facilitating precise control of the first fixed frame's movement and improving the efficiency and accuracy of the test.

[0023] The clamping mechanism employs a clamping block assembly design. A second guide rod is mounted on a fixed frame, and a movable clamping block slides onto the second guide rod, engaging with a slider on the fixed frame via bolts. This structure allows the movable clamping block to move flexibly on the second guide rod. By rotating the bolts, the movable clamping block can be easily moved closer to or away from the fixed frame, enabling rapid clamping or releasing of the test component. Furthermore, this clamping method is adaptable to test components of different sizes and shapes, offering good versatility. Simultaneously, the bolt-slider engagement design ensures clamping stability, preventing the test component from loosening due to the relative movement of the friction plate and the test block during testing, thus ensuring smooth testing.

[0024] The pressure adjustment mechanism adjusts the contact pressure between the friction pad and the test block by placing shims between the base plate and the mounting bracket of the test assembly. Operators can easily change the contact pressure by simply adding or removing shims as needed for testing. This adjustment method is simple and easy to implement, requiring no complex tools or procedures, and can quickly meet pressure requirements under different testing conditions, improving testing flexibility and efficiency. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0026] In the attached diagram: Figure 1 This is a schematic diagram of the main appearance of the present utility model; Figure 2 This is a rear view schematic diagram of the present utility model; Figure 3 This is a schematic diagram of the internal structure of the transmission box of this utility model. Figure 4 This is a bottom view of the internal structure of the transmission box of this utility model.

[0027] The attached diagram lists the components represented by each number as follows: 1. Handwheel; 10. Support block; 101. Worm gear; 2. Transmission box; 201. Limiting plate; 202. Worm wheel; 203. Gear plate; 204. Rotating shaft; 205. Rack; 3. Base; 4. First fixing frame; 401. Fixing rod; 5. Second fixing frame; 501. Slider; 6. Clamping block assembly; 601. Second guide rod; 602. Movable clamping block; 603. Bolt; 7. Test assembly; 701. Base plate; 702. Friction plate; 703. Test block; 704. Pad; 8. Tensile gauge; 9. First guide rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows: Example 1: A testing device for the adhesion characteristics of friction materials, comprising: Base 3; A transmission mechanism is mounted on the base 3. The transmission mechanism includes a handwheel 1 and a transmission box 2. The handwheel 1 can be operated to drive the transmission component inside the transmission mechanism. The transmission component converts rotary motion into linear motion and is equipped with a scale indicator. The mounting bracket assembly includes a second mounting bracket 5 and a first mounting bracket 4, wherein the second mounting bracket 5 is fixedly mounted on the base 3 and the first mounting bracket 4 is movably mounted on the base 3; The guide rod mechanism includes a first guide rod 9, which is supported on a second fixed frame 5 and a support block 10. The first fixed frame 4 is slidably connected to the first guide rod 9. The tensile measuring mechanism includes a tensile gauge 8, which is connected between the linear output end of the transmission mechanism and the first fixed frame 4. A clamping mechanism, mounted on the first fixed frame 4 and the second fixed frame 5, is used to adjustably clamp the test component 7; Test assembly 7 includes a friction plate 702 and a test block 703, which are respectively clamped on the first fixed frame 4 and the second fixed frame 5; The pressure adjustment mechanism includes a pad 704, which is disposed between the test assembly 7 and the fixing frame assembly, and is used to adjust the contact pressure between the friction plate 702 and the test block 703. The operating handwheel 1 drives the first fixed frame 4 to move through the transmission mechanism, causing the friction plate 702 and the test block 703 to move relative to each other, and the adhesion force is measured by the tensile force measuring mechanism.

[0030] Example 2: To improve the stability, accuracy, and ease of operation of the device transmission, for example, such as... Figures 1 to 4 As shown, this utility model also includes: The transmission assembly includes a worm gear mechanism and a rack and pinion mechanism. The worm gear mechanism includes a worm 101 connected to the handwheel 1 and a worm wheel 202 meshing with the worm 101. The rack and pinion mechanism includes a gear disc 203 coaxially arranged with the worm wheel 202 and a rack 205 meshing with the gear disc 203. The rack 205 constitutes the linear output end of the transmission mechanism. The worm gear 101 and worm wheel 202 mechanism has self-locking properties, ensuring stable transmission and preventing the first fixed frame 4 from moving due to external force after the handwheel 1 stops operating. It also allows for a larger transmission ratio, requiring only a small force to drive the first fixed frame 4 when operating the handwheel 1, reducing the operator's workload. The rack and pinion mechanism 205 accurately converts rotary motion into linear motion, ensuring the straightness and precision of the first fixed frame 4's movement, making the relative movement of the friction plate 702 and the test block 703 smoother and more accurate, which is beneficial for obtaining reliable test data. The scale indicator includes scales on the handwheel 1 and scales on the limiting disc 201 on the transmission box 2. When the handwheel 1 rotates, its scales misalign with those on the limiting disc 201 to display the rotation angle, thereby indirectly displaying the movement distance of the rack 205. A limiting block is provided inside the transmission box 2, which restricts the sliding direction of the rack 205, ensuring linear movement. The scale design on the handwheel 1 and the limiting disc 201 allows the operator to quickly and intuitively read the rotation angle of the handwheel 1 through the scale misalignment relationship, and indirectly and accurately display the movement distance of the rack 205, i.e., the movement distance of the first fixed frame 4. This eliminates the need for complex calculations or additional measuring tools, facilitating precise control of the movement of the first fixed frame 4 and improving the efficiency and accuracy of the testing operation. The limiting block inside the transmission box 2 restricts the sliding direction of the rack 205, ensuring that the rack 205 always moves in a straight line, preventing wobbling or deviation when the first fixed frame 4 moves, ensuring accurate relative movement between the friction plate 702 and the test block 703, and improving the reliability of the test results.

[0031] The worm gear 101 is rotatably mounted inside the transmission box 2 and connected to the worm wheel 202 and the gear disc 203 via a rotating shaft 204. The handwheel 1 is directly fixed to one end of the worm gear 101. The rotatable mounting of the worm gear 101 within the transmission box 2 ensures the stability and accuracy of its rotation, reducing the influence of external factors on the transmission. The rotating shaft 204 connects the worm wheel 202 and the gear disc 203, ensuring that the rotation of the worm wheel 202 is accurately transmitted to the gear disc 203, achieving continuous and stable motion. The direct fixing of the handwheel 1 to one end of the worm gear 101 simplifies the transmission structure, reduces energy loss and transmission errors, improves transmission efficiency and reliability, and allows operators to more precisely control the movement of the first fixed frame 4.

[0032] Example 3: To achieve rapid and stable clamping of test component 7 and improve the versatility of the device, for example, such as Figures 1 to 4 As shown, this utility model also includes: The clamping mechanism includes a clamping block assembly 6, which includes a second guide rod 601, a movable clamping block 602, and a bolt 603. The second guide rod 601 is mounted on the first fixed frame 4 or the second fixed frame 5. The movable clamping block 602 is slidably sleeved on the second guide rod 601. The bolt 603 is rotatably mounted on the movable clamping block 602 and engages with the slider 501 on the fixed frame assembly. By rotating the bolt 603, the movable clamping block 602 is driven to move to clamp or release the test component 7. This design of the clamping block assembly 6 allows the movable clamping block 602 to move flexibly on the second guide rod 601. By rotating the bolt 603, the movable clamping block 602 can be easily driven to move closer to or away from the fixed frame, realizing the rapid clamping or release of the test component 7. The operation is convenient and quick. Meanwhile, the meshing design of bolt 603 and slider 501 ensures the stability of clamping. During the test, the test component 7 will not loosen due to the relative movement of friction plate 702 and test block 703, ensuring the smooth progress of the test. It can also adapt to test components 7 of different sizes and shapes, and has good versatility.

[0033] Example 4: To facilitate the installation and disassembly of test component 7 and to meet the adjustment requirements for contact pressure under different test conditions, for example, as follows: Figures 1 to 4 As shown, this utility model also includes: The test assembly 7 includes a base plate 701, a friction plate 702, and a test block 703, which are respectively fixed on different base plates 701. The base plates 701 are clamped on a first fixing frame 4 and a second fixing frame 5 by a clamping mechanism. A pad 704 is disposed between the base plate 701 and the first fixing frame 4 or the second fixing frame 5. The contact pressure is adjusted by increasing or decreasing the number of pads 704, which fixes the friction plate 702 and the test block 703 on the base plate 701, facilitating the installation and removal of the test assembly 7. By setting the pad 704 between the base plate 701 and the fixing frame, the operator can easily increase or decrease the number of pads 704 according to the test requirements to adjust the contact pressure between the friction plate 702 and the test block 703, meeting the pressure requirements under different test conditions, improving the flexibility and efficiency of the test, and the adjustment method is simple and easy to implement, requiring no complicated tools or operating procedures.

[0034] Example 5: To ensure the stability of the movement of the first fixing frame 4, improve the reliability and accuracy of the test results, and achieve accurate measurement of adhesive force, an exemplary example is provided, such as... Figures 1 to 4 As shown, this utility model also includes: Support blocks 10 are mounted on the base 3 and located on both sides of the transmission box 2 to support the first guide rod 9. Support blocks 10 provide stable support for the first guide rod 9, ensuring its straightness and stability. When the first fixed frame 4 slides on the first guide rod 9, the support blocks 10 prevent the first guide rod 9 from deforming or shaking due to force, thereby ensuring the accuracy of the first fixed frame 4's movement direction and making the relative movement of the friction plate 702 and the test block 703 more stable, which is beneficial to improving the reliability and accuracy of the test results.

[0035] The first fixed frame 4 is slidably mounted on the first guide rod 9 via a slider 501. A fixed rod 401 is provided on the first fixed frame 4, which is connected and fixed to the pull rod of the force gauge 8. The sliding of the first fixed frame 4 on the first guide rod 9 via the slider 501 ensures the linearity and stability of the movement of the first fixed frame 4, making the relative movement of the friction plate 702 and the test block 703 smoother. The fixed rod 401 on the first fixed frame 4 is connected and fixed to the pull rod of the force gauge 8, allowing the force gauge 8 to directly and accurately measure the adhesive force between the friction plate 702 and the test block 703, avoiding measurement errors caused by unstable connections or too many transmission links, and improving the accuracy and reliability of the measurement results.

[0036] Working principle: The friction plate 702 and the test block 703 are respectively fixed on different substrates 701 to form the test assembly 7. The test assembly 7 is placed in a suitable position and clamped by a clamping mechanism. Specifically, the second guide rod 601 of the clamping mechanism is mounted on the first fixed frame 4 or the second fixed frame 5, the movable clamping block 602 is slidably sleeved on the second guide rod 601, and the bolt 603 is rotatably mounted on the movable clamping block 602 and engages with the slider 501 on the fixed frame assembly. By rotating the bolt 603, the movable clamping block 602 is driven to move, thereby clamping or releasing the test assembly 7, so that the friction plate 702 and the test block 703 are securely clamped on the first fixed frame 4 and the second fixed frame 5, respectively.

[0037] According to the test requirements, a pad 704 is provided between the substrate 701 of the test component 7 and the first fixing frame 4 or the second fixing frame 5. The contact pressure between the friction plate 702 and the test block 703 is adjusted by increasing or decreasing the number of pads 704.

[0038] The pull rod of the tension gauge 8 is connected and fixed to the fixing rod 401 on the first fixing frame 4, so that the tension gauge 8 is connected between the linear output end (rack 205) of the transmission mechanism and the first fixing frame 4, in preparation for subsequent measurement of adhesion force.

[0039] Handwheel 1 is operated and is directly fixed to one end of the worm gear 101. Rotating handwheel 1 drives the worm gear 101 to rotate. The worm gear 101 is rotatably mounted in the transmission box 2, and the worm wheel 202 meshing with the worm gear 101 rotates accordingly. The worm wheel 202 is connected to the gear plate 203 via the rotating shaft 204. The rotation of the worm wheel 202 drives the coaxially arranged gear plate 203 to rotate. The gear plate 203 meshes with the rack 205. The rotation of the gear plate 203 causes the rack 205 to move linearly. The rack 205 constitutes the linear output end of the transmission mechanism, thereby driving the first fixed frame 4 to move. In this process, because the transmission component converts rotational motion into linear motion, and the worm gear 101 and worm wheel 202 mechanism and the gear and rack 205 mechanism in the transmission component cooperate with each other, the precise transmission and conversion of motion is achieved.

[0040] The handwheel 1 is equipped with a scale, and the limit plate 201 on the transmission box 2 is also equipped with a scale. When the handwheel 1 rotates, its scale and the scale of the limit plate 201 are misaligned. This misalignment indicates the rotation angle of the handwheel 1, and indirectly indicates the movement distance of the rack 205, making it convenient for the operator to understand the movement of the first fixed frame 4. At the same time, the transmission box 2 is equipped with a limit block, which restricts the sliding direction of the rack 205, ensuring that the rack 205 always moves in a straight line and guaranteeing the stability of the movement of the first fixed frame 4.

[0041] The movement of the first fixing frame 4 causes relative movement between the friction plate 702 clamped on the first fixing frame 4 and the test block 703 clamped on the second fixing frame 5. During the relative movement, an adhesive force is generated between the friction plate 702 and the test block 703.

[0042] The force gauge 8 is connected between the linear output end of the transmission mechanism and the first fixed frame 4. As the first fixed frame 4 moves, the adhesive force between the friction plate 702 and the test block 703 is transmitted to the force gauge 8. The force gauge 8 measures and displays the magnitude of the adhesive force in real time, thereby completing the test of the adhesion characteristics of the friction material.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A testing device for the adhesion characteristics of friction materials, characterized in that, include: Base (3); A transmission mechanism is mounted on the base (3). The transmission mechanism includes a handwheel (1) and a transmission box (2). The handwheel (1) is operable to drive the transmission component in the transmission mechanism. The transmission component converts rotational motion into linear motion and is equipped with a scale indicator. The mounting bracket assembly includes a second mounting bracket (5) and a first mounting bracket (4), wherein the second mounting bracket (5) is fixedly mounted on the base (3) and the first mounting bracket (4) is movably mounted on the base (3); The guide rod mechanism includes a first guide rod (9), which is supported on the second fixed frame (5) and the support block (10), and the first fixed frame (4) is slidably connected to the first guide rod (9). The tensile measuring mechanism includes a tensile gauge (8), which is connected between the linear output end of the transmission mechanism and the first fixed frame (4); A clamping mechanism, mounted on the first fixing frame (4) and the second fixing frame (5), is used to adjustably clamp the test component (7). The test assembly (7) includes a friction plate (702) and a test block (703), which are respectively clamped on the first fixing frame (4) and the second fixing frame (5); The pressure adjustment mechanism includes a pad (704) disposed between the test assembly (7) and the fixing frame assembly for adjusting the contact pressure between the friction plate (702) and the test block (703); The handwheel (1) is operated to drive the first fixed frame (4) to move through the transmission mechanism, so that the friction plate (702) and the test block (703) move relative to each other, and the adhesion force is measured by the tensile force measuring mechanism.

2. The friction material adhesion characteristic testing device according to claim 1, characterized in that: The transmission assembly includes a worm gear mechanism and a rack and pinion mechanism. The worm gear mechanism includes a worm (101) connected to the handwheel (1) and a worm wheel (202) meshing with the worm (101). The rack and pinion mechanism includes a gear disc (203) coaxially arranged with the worm wheel (202) and a rack (205) meshing with the gear disc (203). The rack (205) constitutes the linear output end of the transmission mechanism.

3. The friction material adhesion characteristic testing device according to claim 2, characterized in that: The scale indicator includes a scale on the handwheel (1) and a scale on the limiting plate (201) on the transmission box (2). When the handwheel (1) rotates, its scale is misaligned with the scale on the limiting plate (201) to display the rotation angle, thereby indirectly displaying the moving distance of the rack (205). The transmission box (2) is provided with a limiting block, and the rack (205) is restricted in its sliding direction by the limiting block to ensure that the rack (205) moves in a straight line.

4. The friction material adhesion characteristic testing device according to claim 1, characterized in that: The first fixing frame (4) is slidably mounted on the first guide rod (9) via a slider (501). The first fixing frame (4) is provided with a fixing rod (401), which is connected and fixed to the pull rod of the tension gauge (8).

5. The friction material adhesion characteristic testing device according to claim 1, characterized in that: The clamping mechanism includes a clamping block assembly (6), which includes a second guide rod (601), a movable clamping block (602), and a bolt (603). The second guide rod (601) is mounted on the first fixed frame (4) or the second fixed frame (5). The movable clamping block (602) is slidably sleeved on the second guide rod (601). The bolt (603) is rotatably mounted on the movable clamping block (602) and engages with the slider (501) on the fixed frame assembly. The movable clamping block (602) is driven to move by rotating the bolt (603) to clamp or release the test component (7).

6. The friction material adhesion characteristic testing device according to claim 1, characterized in that: The test assembly (7) includes a substrate (701), the friction pad (702) and the test block (703) are respectively fixed on different substrates (701), the substrate (701) is clamped on the first fixing frame (4) and the second fixing frame (5) by the clamping mechanism, and the pad (704) is disposed between the substrate (701) and the first fixing frame (4) or the second fixing frame (5). The contact pressure is adjusted by increasing or decreasing the number of pads (704).

7. The friction material adhesion characteristic testing device according to claim 1, characterized in that: The support block (10) is mounted on the base (3) and located on both sides of the transmission box (2) to support the first guide rod (9).

8. The friction material adhesion characteristic testing device according to claim 2, characterized in that: The worm (101) is rotatably mounted in the transmission box (2) and is connected to the worm wheel (202) and the gear plate (203) through the rotating shaft (204). The handwheel (1) is directly fixed to one end of the worm (101).

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