A rocker arm rubber strip press-in device
Patent Information
- Application Number
- CN202611265977.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-20
- Publication Date
- 2026-10-16
AI Technical Summary
本发明的装置由支撑架2和楔形工装3组合而成，配合车间通用千斤顶，可以实现摇臂座子13与胶条11的快速、精准、无损压装，解决了现有技术胶条压入的装配困难、部件易损、安装偏心、效率低下等问题
[0022] The rocker arm rubber strip pressing device of the present invention effectively solves various problems in the background technology by using a combination of support frame, wedge tooling, and jack pressure. It has the following effects: (1) Smooth assembly: The wedge tooling opens the rubber strip, overcoming the problem of large rubber strip clamping force, and the rocker arm seat is easily assembled into the cavity. (2) Non-destructive assembly: No hammering or hard prying is required throughout the process, avoiding rubber strip tearing, and the rocker arm housing and rocker arm seat remain intact, extending the service life of parts and reducing spare parts procurement costs. (3) High installation accuracy: The device has automatic centering capability, which can ensure that the rocker arm seat is in the center of the four rubber strips, and there will be no problem of press-fitting eccentricity. The equipment runs more smoothly, and vibration and noise are significantly reduced. (4) Cost reduction and efficiency improvement: The operation can be completed by a single person, and the pressing efficiency is more than 70% higher than that of traditional manual methods, which greatly shortens the maintenance cycle and reduces the labor intensity of operators. At the same time, the rocker arm repair fully meets the requirements of repair and reuse, greatly reducing the capital expenditure for rocker arm repair and saving enterprise expenses. (5) Safety and Safety Standards: Linear directional pressure application eliminates the risk of workpieces and tools splashing or slipping. Combined with standardized operating procedures, maintenance quality is consistent and controllable. (6) Wide Adaptability: The basic model can cover mainstream rocker arm models in the workshop. With the expansion of multiple specification kits, it can be adapted to more equipment, making it highly practical for on-site promotion.
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Figure CN122914535A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of tobacco technology, specifically relating to a rocker arm adhesive strip pressing device. Background Technology
[0002] In the vibrating conveyor workshop of the tobacco processing plant, the vibrating conveyor relies on the cooperation of a rocker arm and an eccentric assembly to drive the trough to reciprocate, thereby completing the continuous conveying of tobacco sheets and shreds. The rocker arm adopts a rubber strip clamping structure, with four rubber strips 11 clamped and fixed between the inner wall of the rubber strip mounting cavity 121 of the rocker arm housing 12 and the outer wall of the rocker arm seat 13, symmetrically encircling to form a central mounting cavity (see...). Figure 1 The rubber strip 11 is a core, easily damaged component in the rocker arm assembly and requires frequent replacement. When assembling a new rubber strip 11, the rocker arm seat 13 needs to be pressed into the center position of the four rubber strips. Figure 1 As shown, this ensures that the rocker arm swings concentrically, the force is evenly distributed, and the equipment operates stably.
[0003] The new rubber strips 11 have high elasticity and strong gripping force, making it difficult to press the rocker arm seat 13 smoothly into the rubber strip mounting cavity 121 using conventional methods. Currently, there is no dedicated rubber strip pressing device in the industry, and on-site operations generally use manual hammering and simple pressure rods to complete the assembly, which is also the mainstream operation method in this field. Considering the actual working conditions on site, the existing manual hammering and simple pressure rod pressing operation method has many defects, specifically as follows: 1. High assembly difficulty: The new rubber strips 11 have a strong gripping force, making it difficult to press the four rubber strips 11 of the rocker arm seat 13 smoothly into the rubber strip mounting cavity 121 by manual pressure. 2. Easy to cause component damage: The impact force of manual hammering is large, which can easily tear the rubber strips 11 and cause deformation of the rocker arm seat 13 and rocker arm housing 12, leading to premature component failure and increasing the cost of spare parts replacement. 3. Insufficient installation accuracy: Uneven force during manual operation can easily lead to problems such as misalignment during pressing and incomplete assembly, resulting in abnormal vibration and excessive noise during rocker arm operation, affecting production. 4. High labor intensity and low work efficiency: The entire process relies on manual operation, which is time-consuming and labor-intensive. Pressing a single component takes a long time, extending the overall equipment maintenance cycle. 5. Inconsistent work standards: There are no standardized specialized tools or work procedures, resulting in significant differences in the effectiveness of different operators, unstable installation quality, and further increasing the probability of rocker arm failure.
[0004] This invention is proposed for this purpose. Summary of the Invention
[0005] To address the various shortcomings of existing manual pressing methods for rubber strip 11, this invention discloses a rocker arm rubber strip pressing device. The device consists of a support frame 2 and a wedge-shaped fixture 3. When used with a standard workshop jack, it enables rapid, precise, and non-destructive pressing of the rocker arm seat 13 and the rubber strip 11, solving problems such as assembly difficulties, component damage, installation misalignment, and low efficiency in existing rubber strip pressing techniques.
[0006] The technical solution of the present invention is as follows:
[0007] A rocker arm rubber strip pressing device includes a support frame 2 and a wedge-shaped tooling 3;
[0008] The support frame 2 is inverted "U" shaped, including an upper frame 21 and a lower base 22; a horizontal support plate 23 is provided between the frame 21 and the base 22; the frame 21, the base 22 and the support plate 23 are fixedly connected together.
[0009] A positioning square 231 with four sides protruding from the surface of the support plate 23 is provided. The area of the positioning square 231 is slightly smaller than the area of the rubber strip mounting cavity 121 of the rocker arm housing 12. A square is cut out on the surface of the support plate inside the positioning square 231 to form a mounting square 2311. The four vertices of the mounting square 2311 are respectively located at the midpoints of the four sides of the positioning square 231. The area of the mounting square 2311 is slightly larger than the area of the end face of the rocker arm seat 13.
[0010] The wedge-shaped fixture 3 is in the shape of a regular square frustum, and the area of its large end face is the same as the area of the end face of the rocker arm seat 13, and the height of the wedge-shaped fixture 3 is the same as the height of the rocker arm seat 13.
[0011] Preferably, the protrusion height t of the four sides of the positioning square 231 is 2mm-5mm.
[0012] Preferably, the distance between the horizontal upper frame 212 of the frame 21 and the support plate 23 is greater than the sum of the height of the ordinary jack and the height of the three rocker arm seats 13; the height of the base 22 is greater than the height of the wedge tool 3; and the distance between the two bases 22 is more than twice the width of the ordinary jack.
[0013] Preferably, a support base 24 is provided on the outer side between the two bases 22, and the support base 24 and the support plate 23 are fixedly connected together.
[0014] Preferably, the width of the lower end face of the horizontal upper frame 212 is not less than the width of the upper end of a conventional jack.
[0015] Preferably, there are multiple rocker arm rubber strip pressing devices, and every two rocker arm rubber strip pressing devices are fixedly connected together through a vertical frame 211 and a base 22 in a common frame 21.
[0016] The rocker arm rubber strip pressing device of the present invention consists of two parts: a support frame 2 and a wedge-shaped fixture 3. The support frame 2 is made entirely of high-strength steel plate with no moving parts; the steel plate has high rigidity and good stability. The wedge-shaped fixture 3 is also made of high-strength steel. During operation, it is used in conjunction with a general-purpose hydraulic jack or mechanical jack to apply pressure, without requiring modification to the existing vibrating conveyor, rocker arm, or other equipment.
[0017] Support frame 2 serves as a load-bearing base, used to place and limit the rocker arm housing, providing stable support for the overall press-fitting operation and preventing displacement of the workpiece during assembly. Wedge-shaped fixture 3 is in the shape of a square frustum, with its small end placed between the four rubber strips. It can evenly spread the rubber strips, expand the central mounting cavity, and form a centering guide channel to prevent the rocker arm seat from getting stuck or scratching the rubber strips.
[0018] The component mating relationships and working principles are as follows:
[0019] Structural fit relationship: During operation, the rocker arm housing is placed on the support frame, the rubber strip mounting cavity 121 is fitted onto the positioning square 231, the four rubber strips 11 face upwards and protrude from the central cavity, the small end of the wedge-shaped fixture is placed in the cavity between the four rubber strips, the large end face of the wedge-shaped fixture is placed on the rocker arm seat 13, and the jack is arranged on the upper end face of the rocker arm seat 13. The positioning square 231, the rubber strip mounting cavity 121, the wedge-shaped fixture 3, the rocker arm seat 13 and the jack are arranged coaxially. Working principle: First, the four symmetrical inclined surfaces of the wedge-shaped fixture 3 are used to spread the four rubber strips, expanding the regular guide channel (central cavity) and achieving automatic centering; then, the jack outputs stable linear pressure to push the rocker arm seat 13 smoothly down along the guide channel. The wedge-shaped fixture 3 enters the installation square 2311. The jack continues to output stable linear pressure until the upper end face of the rocker arm seat 13 is flush with the surface of the rubber strip installation cavity 121. At this time, the wedge-shaped fixture 3 falls out of the installation square 2311; the rubber strips rely on their own elasticity to rebound and hug the rocker arm seat 13, completing the overall assembly.
[0020] Complete operating procedure: 1. Positioning and placement: Place the rocker arm housing stably on the support plate 23. Fit the rubber strip mounting cavity 121 onto the positioning square 231 for positioning and fixation. Place the four rubber strips 11 in the center of the rubber strip mounting cavity 121. 2. Flaring and guiding: Place the wedge-shaped fixture 3 between the four rubber strips, using the wedge-shaped inclined surface to spread the rubber strips and form a guide channel. 3. Equipment alignment: Align the lower end face of the rocker arm seat 13 with the upper end face of the wedge-shaped fixture 3. Place the jack on the upper end face of the rocker arm seat 13, ensuring that the output end of the jack is aligned with the center of the rocker arm seat 13, maintaining overall coaxiality. 4. Pressing and Installation: Slowly and evenly apply pressure with the jack, smoothly pressing the rocker arm seat 13 into the center of the four rubber strips along the guide channel; the wedge-shaped fixture 3 enters the hollow installation square 2311, and the jack continues to output stable linear pressure until the upper end face of the rocker arm seat 13 is flush with the rubber strip installation cavity 121. At this time, the wedge-shaped fixture 3 falls from the installation square 2311; due to the friction between the surface of the wedge-shaped fixture 3 and the rubber strip 11. 5. Depressurization and Removal: Briefly maintain pressure, then release the pressure from the jack, remove the jack, and check the rubber strip assembly position. The rubber strip blocking area 2312 (the area between the four corners of the installation square 2311 and the positioning square 231, see...) Figure 3 This will prevent the rubber strip from staying in the rubber strip blocking area 2312; complete the pressing operation of the rubber strip and the rocker arm seat.
[0021] The beneficial effects of this invention are:
[0022] The rocker arm rubber strip pressing device of the present invention effectively solves various problems in the background technology by using a combination of support frame, wedge tooling, and jack pressure. It has the following effects: (1) Smooth assembly: The wedge tooling opens the rubber strip, overcoming the problem of large rubber strip clamping force, and the rocker arm seat is easily assembled into the cavity. (2) Non-destructive assembly: No hammering or hard prying is required throughout the process, avoiding rubber strip tearing, and the rocker arm housing and rocker arm seat remain intact, extending the service life of parts and reducing spare parts procurement costs. (3) High installation accuracy: The device has automatic centering capability, which can ensure that the rocker arm seat is in the center of the four rubber strips, and there will be no problem of press-fitting eccentricity. The equipment runs more smoothly, and vibration and noise are significantly reduced. (4) Cost reduction and efficiency improvement: The operation can be completed by a single person, and the pressing efficiency is more than 70% higher than that of traditional manual methods, which greatly shortens the maintenance cycle and reduces the labor intensity of operators. At the same time, the rocker arm repair fully meets the requirements of repair and reuse, greatly reducing the capital expenditure for rocker arm repair and saving enterprise expenses. (5) Safety and Safety Standards: Linear directional pressure application eliminates the risk of workpieces and tools splashing or slipping. Combined with standardized operating procedures, maintenance quality is consistent and controllable. (6) Wide Adaptability: The basic model can cover mainstream rocker arm models in the workshop. With the expansion of multiple specification kits, it can be adapted to more equipment, making it highly practical for on-site promotion.
[0023] This invention relates to a rocker arm rubber strip pressing device, which was welded and manufactured in the applicant's workshop. It consists only of a support frame and a wedge-shaped fixture, featuring a simple, rigid, durable, and easy-to-maintain structure. The symmetrical inclined surfaces of the wedge-shaped fixture evenly spread the rubber strip, eliminating scraping and impact, effectively protecting the rubber strip itself. The support frame, rocker arm, wedge-shaped fixture 3, rocker arm seat 13, and jack are coaxially arranged, ensuring excellent centering and preventing eccentricity during rocker arm seat pressing, thus guaranteeing installation accuracy. The jack, in conjunction with the device, achieves linear pressurization without hammer impact, resulting in uniform and stable force distribution. A single main fixture set can accommodate most rocker arm specifications in the workshop, offering wide applicability. The entire operation can be completed independently by a single person, making it easy to learn. Attached Figure Description
[0024] Figure 1 A schematic diagram of a rocker arm for a vibratory conveyor in a tobacco processing workshop using existing technology.
[0025] Figure 2 This is a schematic diagram of the rocker arm rubber strip pressing device of the present invention.
[0026] Figure 3 This is a schematic diagram showing the relationship between the positioning square 231 and the mounting square 2311.
[0027] The attached figures are labeled as follows: 11, rubber strip; 12, rocker arm housing; 121, rubber strip mounting cavity; 13, rocker arm seat; 2, support frame; 21, frame; 211, vertical frame; 212, horizontal upper frame; 22, base; 23, support plate; 24, support seat; 231, positioning square; 2311, mounting square; 2312, rubber strip blocking area; 3, wedge-shaped fixture; t, protrusion height. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.
[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0030] Furthermore, the terms “first”, “second”, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.
[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," "adhesion," etc., should be interpreted broadly. For example, they can refer to a connection, a press-fit connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0032] In this specification, the illustrative expressions of the terms used above should not be construed as necessarily referring to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0033] like Figure 2 As shown, the present invention provides a rocker arm rubber strip pressing device, which includes a support frame 2 and a wedge-shaped fixture 3; the rocker arm housing is as follows: Figure 1 As shown;
[0034] The support frame 2 is inverted "U" shaped, which includes an upper frame 21 and a lower base 22; a horizontal support plate 23 is provided between the frame 21 and the base 22; the frame 21, the base 22 and the support plate 23 are fixedly connected together;
[0035] A positioning square 231 with four sides protruding from the surface of the support plate 23 is provided. The area of the positioning square 231 is slightly smaller than the area of the rubber strip mounting cavity 121 of the rocker arm housing 12. A square is cut out on the surface of the support plate inside the positioning square 231 to form a mounting square 2311. The four vertices of the mounting square 2311 are respectively located at the midpoints of the four sides of the positioning square 231. The area of the mounting square 2311 is slightly larger than the area of the end face of the rocker arm seat 13.
[0036] The wedge-shaped fixture 3 is in the shape of a regular square frustum. The area of its large end face is the same as the area of the end face of the rocker arm seat 13, and the height of the wedge-shaped fixture 3 is the same as the height of the rocker arm seat 13.
[0037] The protrusion height t of the four sides of the positioning square 231 is 2mm-5mm; if it is too low, it is not easy to fix the rocker arm housing; if it is too high, the rubber strip 11 cannot be pressed into place.
[0038] Specifically, the distance between the horizontal upper frame 212 of the frame 21 and the support plate 23 is greater than the sum of the height of a regular jack and the height of the three rocker arm seats 13; the height of the base 22 is greater than the height of the wedge-shaped fixture 3; and the distance between the two bases 22 is more than twice the width of a regular jack. These features facilitate the pressing of the rubber strip.
[0039] A support base 24 is provided on the outer side between the two bases 22, and the support base 24 and the support plate 23 are fixedly connected together. The support base 24 and the two bases 22 form a triangle.
[0040] Preferably, the width of the lower end face of the horizontal upper frame 212 is not less than the width of the upper end of a standard jack. This arrangement facilitates the pressing of the rubber strip.
[0041] The rocker arm rubber strip pressing device comprises multiple devices, and every two rocker arm rubber strip pressing devices are fixedly connected together through a vertical frame 211 of a common frame 21 and a base 22. The present invention provides two rocker arm rubber strip pressing devices, see... Figure 2 .
[0042] The rocker arm rubber strip pressing device of the present invention consists of two parts: a support frame 2 and a wedge-shaped fixture 3. The support frame 2 is made entirely of high-strength steel plate with no moving parts; the steel plate has high rigidity and good stability. The wedge-shaped fixture 3 is also made of high-strength steel. During operation, it is used in conjunction with a general-purpose hydraulic jack or mechanical jack to apply pressure, without requiring modification to the existing vibrating conveyor, rocker arm, or other equipment.
[0043] Support frame 2 serves as a load-bearing base, used to place and limit the rocker arm housing, providing stable support for the overall press-fitting operation and preventing displacement of the workpiece during assembly. Wedge-shaped fixture 3 is in the shape of a square frustum, with its small end placed between the four rubber strips. It can evenly spread the rubber strips, expand the central mounting cavity, and form a centering guide channel to prevent the rocker arm seat from getting stuck or scratching the rubber strips.
[0044] The component mating relationships and working principles are as follows:
[0045] Structural fit relationship: During operation, the rocker arm housing is placed on the support frame, the rubber strip mounting cavity 121 is fitted onto the positioning square 231, the four rubber strips 11 face upwards and protrude from the central cavity, the small end of the wedge-shaped fixture is placed in the cavity between the four rubber strips, the large end face of the wedge-shaped fixture is placed on the rocker arm seat 13, and the jack is arranged on the upper end face of the rocker arm seat 13. The positioning square 231, the rubber strip mounting cavity 121, the wedge-shaped fixture 3, the rocker arm seat 13 and the jack are arranged coaxially. Working principle: First, the four symmetrical inclined surfaces of the wedge-shaped fixture 3 are used to spread the four rubber strips, expanding the regular guide channel (central cavity) and achieving automatic centering; then, the jack outputs stable linear pressure to push the rocker arm seat 13 smoothly down along the guide channel. The wedge-shaped fixture 3 enters the installation square 2311. The jack continues to output stable linear pressure until the upper end face of the rocker arm seat 13 is flush with the surface of the rubber strip installation cavity 121. At this time, the wedge-shaped fixture 3 falls out of the installation square 2311; the rubber strips rely on their own elasticity to rebound and hug the rocker arm seat 13, completing the overall assembly.
[0046] Complete operating procedure: 1. Positioning and placement: Place the rocker arm housing stably on the support plate 23. Fit the rubber strip mounting cavity 121 onto the positioning square 231 for positioning and fixation. Place the four rubber strips 11 in the center of the rubber strip mounting cavity 121. 2. Flaring and guiding: Place the wedge-shaped fixture 3 between the four rubber strips, using the wedge-shaped inclined surface to spread the rubber strips and form a guide channel. 3. Equipment alignment: Align the lower end face of the rocker arm seat 13 with the upper end face of the wedge-shaped fixture 3. Place the jack on the upper end face of the rocker arm seat 13, ensuring that the output end of the jack is aligned with the center of the rocker arm seat 13, maintaining overall coaxiality. 4. Pressing and Installation: Slowly and evenly apply pressure with the jack, smoothly pressing the rocker arm seat 13 into the center of the four rubber strips along the guide channel; the wedge-shaped fixture 3 enters the hollow installation square 2311, and the jack continues to output stable linear pressure until the upper end face of the rocker arm seat 13 is flush with the rubber strip installation cavity 121. At this time, the wedge-shaped fixture 3 falls from the installation square 2311; due to the friction between the surface of the wedge-shaped fixture 3 and the rubber strip 11. 5. Depressurization and Removal: Briefly maintain pressure, then release the pressure from the jack, remove the jack, and check the rubber strip assembly position. The rubber strip blocking area 2312 (the area between the four corners of the installation square 2311 and the positioning square 231, see...) Figure 3 This will prevent the rubber strip from staying in the rubber strip blocking area 2312; complete the pressing operation of the rubber strip and the rocker arm seat.
[0047] Example 1: Used in mainstream standard rocker arms.
[0048] Application: This product is used in the vibrating conveyor rocker arm assembly for our company's yarn processing workshop. It includes the rocker arm housing 12, four symmetrically wrapped rubber strips 11, and the rocker arm base 13. See attached document for details. Figure 1 .
[0049] Tooling parameters: Support frame 2 and wedge-shaped tooling 3 are both integrally machined from 45# steel. Their dimensions and wedge angles are matched to this rocker arm. See attached document for details. Figure 2 Right side;
[0050] Supporting equipment: General-purpose 5t hydraulic jack for the workshop;
[0051] Operating Procedure: Place the rocker arm housing on the support frame for positioning and fixation. Place the wedge-shaped fixture at the top of the four rubber strips for flaring and guidance. Set up a hydraulic jack above the fixture, ensuring overall coaxiality. Slowly and evenly apply pressure with the jack to smoothly press the rocker arm seat into the center cavity of the rubber strips. After pressing in place, hold the pressure for 2 seconds, then release the pressure from the jack. Remove the jack and wedge-shaped fixture in sequence to complete the assembly.
[0052] Implementation Conclusion: The entire assembly of the device can be completed by a single operator in approximately 2 minutes; the rubber strips showed no tears or scratches, the rocker arm housing and base showed no deformation, and the rocker arm base was centered and without eccentricity. After assembly, the rocker arm operates smoothly, and vibration and noise levels meet standards. This embodiment represents the optimal implementation method and is compatible with all Pailong series rocker arms in the workshop.
[0053] Example 2: Used for imported HAUNI rocker arms.
[0054] Application: Imported HAUNI rocker arm assembly in the yarn making workshop. The cross-sectional area of the rubber strip mounting cavity 121 and the rocker arm seat 13 are both smaller than those of the rocker arm assembly in Example 1. Other shapes and size proportions are the same as those of the rocker arm assembly in Example 1. The four symmetrical encircling rubber strips 11 are the same as those in Example 1, except that they are thinner.
[0055] Tooling parameters: Support frame 2 is Figure 2 On the left side, paired with wedge-shaped tooling Figure 2 The far left; all are made of 45# steel;
[0056] Supporting equipment: General-purpose 5t mechanical jack for the workshop;
[0057] Operation procedure: The operation procedure is the same as in Example 1.
[0058] Implementation conclusion: The entire assembly took approximately 1.8 minutes, all parts were undamaged, the rocker arm seat was precisely pressed into position, meeting the equipment usage requirements, and can be used for long-term rubber strip pressing operations on imported HAUNI rocker arms.
[0059] This invention relates to a rocker arm rubber strip pressing device, which effectively solves various problems in the prior art through a combination of a support frame, wedge-shaped tooling, and jack pressure application. It offers advantages such as smooth assembly, non-destructive assembly, high installation accuracy, cost reduction and efficiency improvement, safe and standardized operation, and wide adaptability.
[0060] This invention relates to a rocker arm rubber strip pressing device, which was welded and manufactured in the applicant's workshop. It consists only of a support frame and a wedge-shaped fixture, featuring a simple, rigid, durable, and easy-to-maintain structure. The symmetrical inclined surfaces of the wedge-shaped fixture evenly spread the rubber strip, eliminating scraping and impact, effectively protecting the rubber strip itself. The support frame, rocker arm, wedge-shaped fixture 3, rocker arm seat 13, and jack are coaxially arranged, ensuring excellent centering and preventing eccentricity during rocker arm seat pressing, thus guaranteeing installation accuracy. The jack, in conjunction with the device, achieves linear pressurization without hammer impact, resulting in uniform and stable force distribution. A single main fixture set can accommodate most rocker arm specifications in the workshop, offering wide applicability. The entire operation can be completed independently by a single person, making it easy to learn.
[0061] The above embodiments are not intended to limit the present invention, nor is the present invention limited to the examples described above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.
Claims
1. A rocker arm rubber strip pressing device, characterized in that, It includes a support frame (2) and a wedge-shaped tooling (3); The support frame (2) is an inverted "U" shape, which includes an upper frame (21) and a lower base (22); a horizontal support plate (23) is provided between the frame (21) and the base (22); the frame (21), the base (22) and the support plate (23) are fixedly connected together; A positioning square (231) with four sides protruding from the surface of the support plate (23) is provided. The area of the positioning square (231) is slightly smaller than the area of the rubber strip mounting cavity (121) of the rocker arm housing (12). A square is hollowed out on the surface of the support plate inside the positioning square (231) to form a mounting square (2311). The four vertices of the mounting square (2311) are respectively located at the midpoints of the four sides of the positioning square (231). The area of the mounting square (2311) is slightly larger than the area of the end face of the rocker arm seat (13). The wedge-shaped fixture (3) is a regular square frustum, and the area of its large end face is the same as the area of the end face of the rocker arm seat (13), and the height of the wedge-shaped fixture (3) is the same as the height of the rocker arm seat (13).
2. The rocker arm rubber strip pressing device according to claim 1, characterized in that, The protrusion height (t) of the four sides of the positioning square (231) is 2mm-5mm.
3. The rocker arm rubber strip pressing device according to claim 1, characterized in that, The distance between the horizontal upper frame (212) of the frame (21) and the support plate (23) is greater than the sum of the height of the ordinary jack and the height of the three rocker arm seats (13); the height of the base (22) is greater than the height of the wedge fixture (3); the distance between the two bases (22) is more than twice the width of the ordinary jack.
4. The rocker arm rubber strip pressing device according to claim 1, characterized in that, A support base (24) is provided on the outer side between the two bases (22), and the support base (24) and the support plate (23) are fixedly connected together.
5. The rocker arm rubber strip pressing device according to claim 1, characterized in that, The width of the lower end face of the horizontal upper frame (212) is not less than the width of the upper end of the ordinary jack.
6. The rocker arm rubber strip pressing device according to any one of claims 1-5, characterized in that, There are multiple rocker arm rubber strip pressing devices, and every two rocker arm rubber strip pressing devices are fixedly connected together through a vertical frame (211) and a base (22) in a common frame (21).