Floating seal ring planar grinder

Abstract

This utility model relates to the technical field of surface grinding equipment, and provides a floating sealing ring surface grinding machine, including a machine base, an upper grinding disc and a lower grinding disc symmetrically mounted on the machine base; a support plate mounted on the machine base is provided on one side of the lower grinding disc, the support plate has a notch located at the gap between the upper and lower grinding discs, an irregular cam is provided at the center of the support plate, and three push rods that abut against the periphery of the cam are arranged radially on the support plate. The push rods slide in cooperation with the limiting blocks mounted on the support plate, and the ends of the push rods are provided with rollers for tensioning the sealing rings. The support plate has an arc-shaped guide hole. This utility model overcomes the shortcomings of the prior art, has a reasonable design and compact structure. By driving the irregular cam to rotate through a rotary cylinder, the three push rods are driven to achieve synchronous and equidistant extension and retraction under the guidance of the limiting blocks, ensuring that sealing rings of different diameters can obtain uniform radial clamping force.

Description

Technical Field

[0001] This utility model relates to the technical field of surface grinding equipment, specifically to a floating sealing ring surface grinding machine. Background Technology

[0002] Floating seal rings are critical sealing components in the running systems of construction machinery (such as track rollers, carrier rollers, idler rollers, and tensioner rollers). They primarily prevent mud, moisture, and impurities from entering the bearing cavity, while also preventing lubricant leakage. The flatness, surface roughness, and sealing performance of their end faces directly affect the reliability and service life of construction machinery under harsh operating conditions. Currently, the grinding and processing of floating seal rings mainly relies on surface grinding equipment, but existing technologies face the following prominent problems in the mass production of sealing rings for construction machinery:

[0003] In the existing technology, the push rod mechanism of the grinding machine is mostly fixed stroke or manually adjustable, which cannot automatically adjust the moving distance of the push rod according to the diameter of the sealing ring, resulting in the inability to reliably clamp sealing rings of different specifications.

[0004] The fixed position of the drive wheel prevents it from adaptively adjusting within the arc-shaped guide hole as the diameter of the sealing ring changes, resulting in poor contact between the drive wheel and the sealing ring and affecting the stability of power transmission during the grinding process.

[0005] The existing equipment's push rod drive mechanism (such as lead screw or cylinder) cannot achieve a smooth transition under different extension distances, causing the sealing ring to stutter or shift during the tensioning process, affecting the grinding accuracy.

[0006] The lack of a cam linkage mechanism makes it difficult to ensure the synchronous movement of multiple push rods, which can easily lead to uneven force on the sealing ring.

[0007] Traditional clamps use single-point or mechanical clamping, which cannot ensure that the sealing ring is subjected to uniform circumferential force in the radial direction. This causes the sealing ring to deform locally during the grinding process, affecting the flatness of the end face and the sealing performance.

[0008] In response to the aforementioned problems, we propose a floating sealing ring surface grinding machine. Utility Model Content

[0009] (a) Technical problems to be solved

[0010] To address the shortcomings of existing technologies, this invention provides a floating sealing ring surface grinding machine to solve the aforementioned problems in the prior art.

[0011] Technical solution

[0012] To achieve the above objectives, this utility model provides the following technical solution:

[0013] A floating sealing ring surface grinding machine includes a machine base, an upper grinding disc and a lower grinding disc symmetrically mounted on the machine base;

[0014] A support plate mounted on the machine base is provided on one side of the lower grinding disc. The support plate has a notch located at the gap between the upper and lower grinding discs. An irregular cam is provided at the center of the support plate. Three push rods that abut against the periphery of the cam are arranged radially on the support plate. The push rods slide in cooperation with the limiting blocks mounted on the support plate. A roller for tensioning the sealing ring is provided at the end of the push rod. The support plate has an arc-shaped guide hole. A drive wheel for driving the sealing ring to rotate circumferentially along the roller is provided in the arc-shaped guide hole. A drive motor is provided at one end of the drive wheel that passes through the arc-shaped guide hole. The support plate also has a rocker arm for supporting the drive motor and a limiting frame for adjusting and locking the position of the rocker arm.

[0015] Furthermore, the machine base is also equipped with a first motor for independently driving the upper and lower grinding discs to rotate, and the upper and lower grinding discs are adjustable in height.

[0016] Furthermore, the three push rods move synchronously and equidistantly under the rotation of the cam.

[0017] Furthermore, the cam is clearance-fitted with the support plate, and the machine base is equipped with a rotary cylinder for driving the cam to rotate at a set angle.

[0018] Furthermore, one end of the swing arm is hinged to the support rod, and the other end of the swing arm is fixed to the drive motor by screws.

[0019] Furthermore, the swing arm passes through the limiting frame, which has multiple threaded holes, and the position of the swing arm is locked by screws through the threaded holes.

[0020] Furthermore, the edge of the support plate is wrapped with a baffle installed on the machine base, and the bottom of the baffle is provided with a guide tube for discharging grinding waste.

[0021] (III) Beneficial Effects

[0022] This utility model provides a floating sealing ring surface grinding machine. It has the following advantages: A rotating cylinder drives an irregular cam to rotate, causing three push rods to synchronously extend and retract at equal intervals under the guidance of a limiting block, ensuring that sealing rings of different diameters can obtain uniform radial clamping force; the threaded holes on the limiting frame ensure that the drive wheel always maintains optimal contact pressure with the sealing ring.

[0023] The drive wheel can slide along the arc-shaped guide hole, and with the angle adjustment of the rocker arm, the position of the drive wheel can be adaptively adjusted according to the diameter of the sealing ring; the roller at the end of the push rod makes flexible contact with the sealing ring to avoid surface damage caused by hard friction;

[0024] The three push rods move in perfect synchronization under the drive of the cam, ensuring that the sealing ring is subjected to uniform force in the circumference; the upper and lower grinding discs are independently height-adjustable, and together with the tension of the push rods, the grinding pressure can be precisely controlled. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main view of this utility model;

[0026] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0027] Figure 3 This is a right-side view of the present invention;

[0028] Figure 4 This is a top view of the present invention;

[0029] Figure 5 This is a top view of the support plate structure of this utility model;

[0030] Figure 6 This is a three-dimensional structural diagram of the support plate of this utility model;

[0031] Figure 7 This is a schematic diagram of the swing arm structure of this utility model;

[0032] In the diagram: 1. Machine base; 2. First motor; 3. Baffle; 4. Guide tube; 5. Cam; 6. Drive motor; 7. Support plate; 8. Sealing ring; 9. Drive wheel; 11. Upper grinding disc; 12. Lower grinding disc; 71. Arc-shaped guide; 72. Limiting block; 73. Top rod; 74. Swing rod; 75. Limiting frame; 731. Roller. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] See attached document Figures 1-7 ,

[0035] In this embodiment, a floating sealing ring 8 surface grinding machine includes a machine base 1, an upper grinding disc 11 and a lower grinding disc 12 symmetrically mounted on the machine base 1; the machine base 1 is also provided with a first motor 2 for individually driving the upper grinding disc 11 and the lower grinding disc 12 to rotate, and the upper grinding disc 11 and the lower grinding disc 12 are adjustable in height; the machine base 1 is provided with a rotary cylinder for driving the cam 5 to rotate at a set angle.

[0036] The lower grinding disc 12 is provided with a support plate 7 installed on the machine base 1 on one side. The edge of the support plate 7 is wrapped with a baffle 3 installed on the machine base 1. The bottom of the baffle 3 is provided with a guide pipe 4 for discharging grinding waste.

[0037] The support plate 7 has a notch located at the gap between the upper grinding disc 11 and the lower grinding disc 12. An irregular cam 5 is provided at the center of the support plate 7. The cam 5 is in clearance fit with the support plate 7. Three push rods 73 are arranged radially on the support plate 7 and abut against the periphery of the cam 5. The three push rods 73 move synchronously and equidistantly under the rotation of the cam 5. The push rods 73 are in sliding fit with the limiting block 72 installed on the support plate 7. The end of the push rod 73 is provided with a roller 731 for tensioning the sealing ring.

[0038] The support plate 7 is provided with an arc-shaped guide hole 71, and a drive wheel 9 for driving the sealing ring to rotate circumferentially along the roller 731 is provided in the arc-shaped guide hole 71. A drive motor 6 is provided at one end of the drive wheel 9 that passes through the arc-shaped guide hole 71. The support plate 7 is also provided with a rocker arm 74 that supports the drive motor 6. One end of the rocker arm 74 is hinged to the support rod, and the other end of the rocker arm 74 is fixed to the drive motor 6 by screws. A limiting frame 75 is provided for adjusting and locking the position of the rocker arm 74. The rocker arm 74 passes through the limiting frame 75. The limiting frame 75 is provided with multiple threaded holes, and the position of the rocker arm 74 is locked by screws in the threaded holes.

[0039] Working principle: First, the sealing ring 8 workpiece to be processed is placed on the support plate 7. Then, the rotary cylinder is started, which drives the irregular cam 5 to rotate at a set angle. The periphery of the cam 5 pushes three radially arranged push rods 73 to move synchronously and equidistantly. The rollers 731 at the ends of the push rods 73 tension and position the sealing ring 8 workpiece. The limit block 72 ensures the linear motion accuracy of the push rods 73.

[0040] The drive motor 6 drives the drive wheel 9 to move along the arc-shaped guide hole 71 via the rocker arm 74. The drive wheel 9 drives the sealing ring 8 workpiece to rotate slowly around the roller 731. The upper grinding disc 11 applies downward pressure, and together with the rotating lower grinding disc 12, they complete the surface grinding. The rocker arm 74 is adjusted and fixed through the threaded hole on the limit frame 75, changing the movement trajectory of the drive wheel 9.

[0041] Then, the position of the upper grinding disc 11 is adjusted by the height adjustment mechanism, a suitable grinding gap is set, and the first motor 2 is started to drive the upper grinding disc 11 and the lower grinding disc 12 to rotate at the set speed (the directions can be the same or opposite).

[0042] During the grinding process, the different rotation speeds of the drive motor 6 can adjust the grinding time of the sealing ring 8 workpiece during the grinding process.

[0043] The waste generated during grinding is thrown towards the edge of the support plate 7 by the centrifugal force of rotation; the baffle 3 guides the waste to the bottom guide pipe 4; the waste is discharged out of the machine through the guide pipe 4;

[0044] The rotary cylinder resets, cam 5 returns to its initial position, push rod 73 retracts, releasing the clamping of the workpiece, and the machined sealing ring 8 workpiece is removed.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A floating sealing ring surface grinding machine, comprising a machine base, an upper grinding disc and a lower grinding disc symmetrically mounted on the machine base; characterized in that A support plate mounted on the machine base is provided on one side of the lower grinding disc. The support plate has a notch located at the gap between the upper and lower grinding discs. An irregular cam is provided at the center of the support plate. Three push rods that abut against the periphery of the cam are arranged radially on the support plate. The push rods slide in cooperation with the limiting blocks mounted on the support plate. A roller for tensioning the sealing ring is provided at the end of the push rod. The support plate has an arc-shaped guide hole. A drive wheel for driving the sealing ring to rotate circumferentially along the roller is provided in the arc-shaped guide hole. A drive motor is provided at one end of the drive wheel that passes through the arc-shaped guide hole. The support plate also has a rocker arm for supporting the drive motor and a limiting frame for adjusting and locking the position of the rocker arm.

2. A floating seal ring planar grinder as claimed in claim 1, wherein: The machine base is also equipped with a first motor for independently driving the upper and lower grinding discs to rotate, and the upper and lower grinding discs are adjustable in height.

3. A floating seal ring planar grinder as claimed in claim 1, wherein: The three push rods move synchronously and equidistantly under the rotation of the cam.

4. A floating seal ring planar grinder as defined in claim 1, wherein: The cam is fitted with a clearance between itself and the support plate, and the machine base is equipped with a rotary cylinder for driving the cam to rotate at a set angle.

5. A floating seal ring planar grinder as defined in claim 1, wherein: One end of the swing arm is hinged to the support rod, and the other end of the swing arm is fixed to the drive motor by screws.

6. A floating seal ring planar grinder as defined in claim 1, wherein: The swing arm passes through the limiting frame, which has multiple threaded holes. The position of the swing arm is locked by screws through the threaded holes.

7. A floating sealing ring surface grinding machine as described in claim 1, characterized in that: The edge of the support plate is wrapped with a baffle installed on the machine platform, and the bottom of the baffle is provided with a guide tube for discharging grinding waste.

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