An impact-resistant tube support

Abstract

This invention relates to the field of pipe support and vibration damping technology, and provides an impact-resistant pipe support, including a base with an inner ring rotatably fitted around the outside of a pipe. A ring gear is fixedly fitted onto the outer wall of the pipe. A vibration damping device is provided on the inner ring, comprising an outer ring rotatably fitted around the outside of the pipe, and multiple friction transmission mechanisms spaced circumferentially along the inner ring. Each friction transmission mechanism includes a swing arm that can swing axially around the inner ring. This invention, through the frictional engagement between the friction wheel and the outer ring, converts some of the motion generated during pipe vibration or axial displacement into rotation of the friction wheel, which, via a transmission mechanism and rolling gears, drives the inner ring to move circumferentially. This allows the working position of the friction transmission mechanism to be adjusted during use, thereby mitigating the problem of the friction wheel being fixed in the same circumferential position for a long time and experiencing concentrated wear.

Description

Technical Field

[0001] This invention relates to the field of pipeline support and vibration damping technology, specifically to an impact-resistant pipe support. Background Technology

[0002] In pump houses, industrial plants, and pipe gallery systems, the outlet pipes of equipment such as water pumps, circulating pumps, sewage lift pumps, and chemical transfer pumps are mostly arranged horizontally. When transporting media, these pipes are easily affected by factors such as pump body pulsation, media impact, valve opening and closing, and thermal expansion and contraction, resulting in axial movement, radial sway, or combined vibration. To reduce the impact of pipe vibration on the pump body, flange connections, and pipe supports, existing technologies typically install rubber pads, rubber damping wheels, limit wheels, or ring-shaped vibration damping and limiting structures on the outside of the pipe for elastic vibration damping and limiting.

[0003] In existing rubber vibration damping and limiting structures, rubber damping components are usually installed in fixed positions on support seats or ring brackets. In actual operation, although the main weight of the pipeline is generally borne by pipe supports, hangers, or metal supports, the rubber damping components located at the bottom or on one side are still prone to bearing large compressive forces and friction for a long time due to the influence of the pipeline's own weight, installation direction, and vibration direction, while the rubber damping components in other positions are subjected to less force and have a lower utilization rate.

[0004] After prolonged use, the lower or unilateral rubber damping components are prone to wear, compression deformation, aging and cracking, or increased contact gaps, leading to a decrease in vibration damping and limiting effects. Existing methods, such as increasing the number of rubber components, improving rubber hardness, or increasing preload, can delay failure to some extent, but they still cannot change the problem of fixed stress on the rubber damping components and localized long-term wear. At the same time, excessive preload may also increase frictional resistance, affecting the vibration damping and buffering effect of the pipeline.

[0005] Therefore, existing vibration damping and limiting structures for horizontal pipelines still have problems such as relatively fixed stress positions of rubber damping components, concentrated local wear, uneven utilization of each damping component, and frequent maintenance. It is necessary to improve the existing pipe supports or vibration damping and limiting structures. Summary of the Invention

[0006] The purpose of this invention is to provide an impact-resistant pipe support to solve the problems of relatively fixed force position of rubber damping components, concentrated local wear, decreased vibration damping and limiting effect over time, and frequent maintenance in existing horizontal pipe vibration reduction and limiting structures.

[0007] The present invention adopts the following technical solution: an impact-resistant pipe support for installing pipes, comprising a base, wherein the base is provided with an inner ring body, the inner ring body is rotatably sleeved on the outside of the pipe, and an annular toothed ring is fixedly sleeved on the outer wall of the pipe; The inner ring body is provided with a vibration damping device, which includes an outer ring body rotatably sleeved on the outside of the pipe, and a plurality of friction transmission mechanisms spaced apart along the circumference of the inner ring body. The friction transmission mechanism includes a swing arm that can swing axially in the inner ring body, a friction wheel rotatably connected to one end of the swing arm, a compression spring that abuts against the swing arm, a rolling gear that meshes with the ring gear, and a transmission mechanism that drivesly connects the friction wheel and the rolling gear. The friction wheel is connected to the inner wall of the outer ring body by rolling friction along the axial direction of the inner ring body, and the compression spring causes the swing arm to tend to swing in the direction that makes the friction wheel press against the outer ring body.

[0008] Furthermore, the inner wall of the inner ring body is provided with a plurality of inner ring support seats at circumferential intervals, and the inner ring support seats are provided with rotatable inner ring damping wheels. A limiting ring is provided on the outer wall of the pipe, and an inner ring limiting groove is formed between the limiting ring and the annular toothed ring. The inner ring damping wheel is in rolling engagement with the inner ring limiting groove.

[0009] Furthermore, the outer wall of the outer ring body is provided with a plurality of outer ring support seats at circumferential intervals, and the outer ring support seats are provided with rotatable outer ring damping wheels; The inner wall of the substrate is provided with an annular outer ring limiting groove, and the outer ring damping wheel is in rolling engagement with the outer ring limiting groove.

[0010] Furthermore, the vibration damping device is provided in pairs and is symmetrically arranged at the left and right ends of the inner ring body along the axial direction.

[0011] Furthermore, the friction transmission mechanisms on the left-end damping device are respectively set up in correspondence with the friction transmission mechanisms on the right-end damping device, and the two friction transmission mechanisms set up in correspondence on the left and right ends are regarded as a group. In each set of friction transmission mechanisms, when the pipe is offset along the axial direction, the friction wheel at the offset end rotates under the friction of the corresponding outer ring body and drives the rolling gear to roll along the gear ring through the transmission mechanism; the friction wheel at the reverse offset end reduces or releases the clamping force acting on the corresponding outer ring body.

[0012] Furthermore, a sliding groove extending along the axial direction of the inner ring body is provided on the outer wall of the inner ring body; The friction transmission mechanism includes a sliding seat that is slidably connected to the sliding groove, a rotating seat disposed on the sliding seat, and a return spring that abuts against the rotating seat; In each friction drive mechanism, the swing arm is hinged to the rotating seat, and the return spring causes the sliding seat to tend to move away from the inner ring. A spring rod is connected between two swing arms in the same set of friction transmission mechanisms. The spring rod is a telescopic structure with a stretching stroke and a limiting compression stroke.

[0013] Furthermore, the inner ring support is provided with a drive gear fixed coaxially with the rolling gear. The transmission mechanism includes a transmission rod passing through the inner ring body, a hanger, and a universal coupling. Both ends of the transmission rod are provided with transmission bevel gears. One end of the transmission rod meshes with the drive gear, and the other end meshes with the bevel gear provided on the hanger. The bevel gear provided on the hanger is connected to the universal coupling. The universal coupling is connected to the shaft of the friction wheel. The shaft of the universal coupling is provided with a spline connection structure, which is used to generate expansion and contraction compensation and maintain torque transmission when the position of the friction wheel changes.

[0014] Furthermore, it also includes a ratchet mechanism, which includes a ratchet fixed coaxially with the friction wheel, ratchet teeth pivotally mounted on a swing arm, and an elastic element connected to the ratchet teeth, the elastic element causing the ratchet teeth to tend to engage with the ratchet.

[0015] The beneficial effects of this invention are as follows: 1. This invention converts some of the motion generated during pipeline vibration or axial displacement into rotation of the friction wheel through frictional engagement between the friction wheel and the outer ring body. The rotation is then driven by the transmission mechanism and rolling gears to move the inner ring body circumferentially, allowing the working position of the friction transmission mechanism to be adjusted during use. This reduces the problem of the friction wheel being fixed in the same circumferential position for a long time and experiencing concentrated wear.

[0016] 2. The present invention, through the coordinated arrangement of a friction transmission mechanism, a return spring, a spring rod and a ratchet mechanism, enables one side of the friction wheel to generate unidirectional force when the pipeline undergoes axial displacement, while the other side of the friction wheel can reduce the resistance to circumferential movement. This is beneficial to improving the reliability of the circumferential repositioning action of the inner ring body and further changing the contact position between the friction wheel and the outer ring body. Attached Figure Description

[0017] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a left view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 A sectional view along the middle AA; Figure 4 For the present invention Figure 3 A magnified view of area B in the middle; Figure 5 This is an exploded view of an important component of the present invention; Figure 6 This is a schematic diagram of the internal structure of the present invention; Figure 7 For the present invention Figure 6 A magnified view of area C in the middle; Figure 8 This is an assembly diagram of the transmission mechanism in this invention; Figure 9 For the present invention Figure 8 A magnified view of region D in the middle; Figure 10 This is a schematic diagram illustrating the working principle of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Base; 2. Outer ring body; 3. Inner ring body; 4. Pipe; 5. Friction transmission mechanism; 6. Inner ring support seat; 7. Transmission mechanism; 8. Ratchet mechanism; 21. Outer ring support seat; 22. Outer ring damping wheel; 23. Outer ring limiting groove; 41. Ring gear; 42. Limiting ring; 43. Inner ring limiting groove; 51. Sliding seat; 52. Rotating seat; 53. Swing arm; 54. Friction wheel; 55. Compression spring; 56. Return spring; 57. Spring rod; 61. Inner ring damping wheel; 62. Rolling gear; 63. Drive gear; 71. Transmission rod; 72. Hanger; 73. Universal coupling; 74. Spline connection structure; 81. Ratchet; 82. Ratchet; 83. Elastic rotating component. Detailed Implementation

[0020] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0021] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] For ease of description, in this embodiment, the axial direction of pipe 4 refers to the direction extending along the length of pipe 4; the circumferential direction of pipe 4 refers to the direction around the outer circumference of pipe 4; and the radial direction of pipe 4 refers to the direction extending outward from the center of pipe 4.

[0023] As attached Figures 1 to 10As shown, the impact-resistant pipe support in this embodiment is used to install pipe 4. The base 1 serves as the external load-bearing foundation and is set on the outside of pipe 4. An installation space is formed in the base 1 to accommodate the inner ring 3 and the outer ring 2. The inner ring 3 is rotatably fitted onto the outside of pipe 4 and is located in the internal region of the base 1; the outer ring 2 is also fitted onto the outside of pipe 4 and is located between the inner ring 3 and the base 1. The inner ring 3 and pipe 4 are not fixedly connected, but rather are engaged by the annular toothed ring 41 on pipe 4, the limiting ring 42, and the related rolling elements on the inner ring support 6. This allows the inner ring 3 to be both subjected to the transmission of vibration or axial displacement of pipe 4 and to rotate circumferentially around pipe 4 under the drive of the friction transmission mechanism 5.

[0024] The base 1, outer ring 2, and inner ring 3 can all adopt a split-type ring structure, allowing assembly from the outside of the pipe 4 when it is already installed. After the individual parts are arranged around the pipe 4, they can be assembled into a ring-like whole through welding, bolting, snap-fitting, or other connection methods. It should be noted that the above-mentioned assembly into a whole refers to the base 1 and outer ring 2 or inner ring 3 completing their own assembly, and does not mean that the inner ring 3 is fixedly connected to the pipe 4; the inner ring 3 can still rotate circumferentially relative to the pipe 4.

[0025] As a further implementation method, such as Figure 5 As shown, an annular toothed ring 41 and a limiting ring 42 are fixedly fitted on the outer wall of the pipe 4. The limiting ring 42 and the annular toothed ring 41 are arranged at intervals along the axial direction of the pipe 4, forming an inner ring limiting groove 43 between them. This inner ring limiting groove 43 rolls into contact with the inner ring damping wheel 61 on the inner ring support 6, which is used to limit the axial position of the inner ring body 3 relative to the pipe 4. The annular toothed ring 41 also meshes with the rolling gear 62, so that the rolling gear 62 can roll along the annular toothed ring 41 when driven, thereby driving the inner ring support 6 and the inner ring body 3 to rotate around the pipe 4.

[0026] As a further implementation method, such as Figures 2 to 4 As shown, the outer ring body 2 has multiple outer ring support seats 21 spaced circumferentially on its outer wall, and each outer ring support seat 21 is provided with a rotatable outer ring damping wheel 22. The inner wall of the base body 1 is provided with an annular outer ring limiting groove 23. The outer ring damping wheel 22 rolls with the outer ring limiting groove 23, so that the outer ring body 2 can be supported in the base body 1 and rotate in a controlled manner relative to the base body 1 when subjected to sufficient circumferential driving force.

[0027] Through the rolling engagement between the outer ring damping wheel 22 and the base 1, the outer ring 2 will not rotate freely due to minor vibrations of the pipe 4. When the circumferential driving force transmitted by the friction transmission mechanism 5 to the outer ring 2 via the friction wheel 54 reaches a level sufficient to overcome the damping between the outer ring damping wheel 22 and the base 1, the outer ring 2 can undergo controlled circumferential rotation relative to the base 1 under the support of the outer ring damping wheel 22. Thus, the outer ring 2 can both provide a rolling friction surface for the friction wheel 54 and participate in controlled rotation during pipe support repositioning.

[0028] As a further implementation method, such as Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, a vibration damping device is provided on the inner ring 3. The vibration damping device uses the outer ring 2 as the basis for friction engagement and forms a fit with the outer ring 2 through multiple friction transmission mechanisms 5 spaced apart along the circumference of the inner ring 3. When the pipeline 4 vibrates or deviates axially, the friction transmission mechanism 5 can rotate by utilizing the friction between the friction wheel 54 and the outer ring 2, and transmit this rotation to the rolling gear 62, thereby causing the inner ring 3 to rotate circumferentially.

[0029] The friction transmission mechanism 5 is mounted on the inner ring body 3 via a sliding seat 51. A sliding groove extending axially along the outer wall of the inner ring body 3 is provided. The sliding seat 51 is slidably connected to the sliding groove, allowing the sliding seat 51 to move within a predetermined stroke along the axial direction of the inner ring body 3. A rotating seat 52 is provided on the sliding seat 51, and a swing arm 53 is hinged to the rotating seat 52. A friction wheel 54 is rotatably connected to one end of the swing arm 53.

[0030] As a further implementation method, such as Figure 4 and Figure 7 As shown, the compression spring 55 abuts against the swing arm 53, applying an elastic pushing force to the swing arm 53, causing it to tend to swing towards the outer ring 2, thereby pressing the outer circumferential surface of the friction wheel 54 against the inner wall of the outer ring 2. The friction wheel 54 can swing or change position in the axial direction of the inner ring 3 with the swing arm 53 and the sliding seat 51, and maintains rolling frictional engagement with the inner wall of the outer ring 2 during this position change. Thus, the friction wheel 54 can both absorb the impact of the vibration generated by the pipe 4 as a vibration damping contact element and output torque to the transmission mechanism 7 as a friction force take-off element.

[0031] When radial vibration occurs in pipe 4, the vibration is transmitted to the friction transmission mechanism 5 via the inner ring damping wheel 61, inner ring support 6, and inner ring body 3. This causes a change in the clamping force between the friction wheel 54 and the outer ring body 2, and causes the swing arm 53 to swing around the rotating seat 52, thereby compressing the compression spring 55. The elastic deformation of the compression spring 55 can absorb part of the impact energy, and the frictional contact between the friction wheel 54 and the outer ring body 2 can form a damping effect. When radial vibration is accompanied by the swing of the swing arm 53, a slight displacement of the inner ring body 3, or a relative rolling tendency between the friction wheel 54 and the outer ring body 2, the friction wheel 54 can generate continuous rotation, intermittent rotation, or slight displacement. This rotation or displacement is transmitted to the rolling gear 62 via the transmission mechanism 7, enabling the inner ring body 3 to gradually undergo circumferential displacement. This process does not require a complete continuous rotation for each radial impact; as long as cumulative displacement is achieved under multiple vibrations, the working position of the vibration damping device can be gradually adjusted.

[0032] As a further implementation method, such as Figure 6 , Figure 8 and Figure 9 As shown, multiple inner ring support seats 6 are spaced circumferentially along the inner wall of the inner ring body 3. Each inner ring support seat 6 is equipped with a rotatable inner ring damping wheel 61, a rolling gear 62, and a drive gear 63. The inner ring damping wheel 61 rolls into the inner ring limiting groove 43 formed by the limiting ring 42 and the annular gear ring 41, providing support and axial limiting for the inner ring body 3. The rolling gear 62 meshes with the annular gear ring 41 and rolls along the annular gear ring 41 when driven. The drive gear 63 is coaxially fixed or synchronously connected to the rolling gear 62, enabling the rolling gear 62 to rotate synchronously when the drive gear 63 rotates.

[0033] Since the annular gear ring 41 is fixed to the outer wall of the pipe 4, when the rolling gear 62 rolls along the annular gear ring 41, the inner ring support 6 undergoes circumferential displacement along with the rolling gear 62, thereby driving the inner ring body 3 connected to the inner ring support 6 to rotate circumferentially around the pipe 4. In this way, the rotation obtained by the friction wheel 54 can be converted into the circumferential displacement motion of the inner ring body 3 through mechanical transmission.

[0034] As a further implementation method, such as Figures 7 to 9 As shown, the transmission mechanism 7 transmits the rotation of the friction wheel 54 to the rolling gear 62. The transmission mechanism 7 includes a transmission rod 71 passing through the inner ring body 3, a hanger 72, and a coupling 73. Both ends of the transmission rod 71 are provided with transmission bevel gears. One end of the transmission rod 71 is connected to the drive gear 63 through the transmission bevel gear, and the other end meshes with a bevel gear provided on the hanger 72 through the transmission bevel gear. The bevel gear provided on the hanger 72 is connected to the coupling 73, and the coupling 73 is connected to the rotating shaft of the friction wheel 54.

[0035] In this embodiment, the coupling 73 is preferably a universal coupling. Since the friction wheel 54 is mounted at one end of the swing arm 53, the position of the friction wheel 54 changes with the swing of the swing arm 53. Therefore, the shaft of the coupling 73 is provided with a spline connection structure 74. The spline connection structure 74 is used to generate expansion and contraction compensation when the position of the friction wheel 54 changes, while maintaining torque transmission between the friction wheel 54 and the transmission rod 71. Thus, even if the friction wheel 54 swings with the swing arm 53, the rotation of the friction wheel 54 can still be transmitted to the rolling gear 62 through the coupling 73, the hanger 72, the transmission rod 71, and the drive gear 63.

[0036] Based on the above structure, when the friction wheel 54 rotates under the rolling friction with the outer ring body 2, the torque of the friction wheel 54 is transmitted sequentially to the rolling gear 62 via the coupling 73, the hanger 72, the transmission rod 71, and the drive gear 63. Since the rolling gear 62 meshes with the annular gear ring 41 fixed on the outer wall of the pipe 4, the rolling gear 62 rolls along the annular gear ring 41 when it rotates, thereby driving the inner ring support 6 and the inner ring body 3 to rotate circumferentially around the pipe 4. During the circumferential rotation of the inner ring body 3, the friction wheel 54 maintains rolling friction contact with the outer ring body 2, thus transmitting circumferential driving force to the outer ring body 2. When this circumferential driving force reaches the condition of overcoming the damping between the outer ring damping wheel 22 and the base 1, the outer ring body 2 can also undergo controlled circumferential rotation relative to the base 1 as the inner ring body 3 shifts circumferentially.

[0037] Vibration or axial displacement of pipe 4 causes frictional rotation between friction wheel 54 and outer ring 2. Friction wheel 54 drives rolling gear 62 to roll along ring gear 41 via transmission mechanism 7. Rolling gear 62 drives inner ring 3 to rotate circumferentially around pipe 4, and the frictional contact between friction wheel 54 and outer ring 2 causes controlled circumferential rotation of outer ring 2. Through this basic transmission closed loop, the working position of the vibration damping device can be gradually adjusted according to the vibration or displacement of pipe 4, thereby reducing the problem of friction wheel 54 being fixed in a certain circumferential position for a long time and experiencing stress and wear.

[0038] As one embodiment of the present invention, such as Figure 3 , Figure 4 and Figure 10 As shown, a pair of vibration damping devices are provided, symmetrically arranged at the left and right ends of the inner ring 3 along the axial direction. Each friction transmission mechanism 5 on the left-end vibration damping device is correspondingly arranged to each friction transmission mechanism 5 on the right-end vibration damping device, and the two corresponding friction transmission mechanisms 5 at the left and right ends are considered as a group. Through this grouping arrangement, when the pipe 4 deviates along the axial direction, the two friction transmission mechanisms 5 within a group can form a cooperative relationship where one side takes force and the other side reduces resistance.

[0039] Specifically, in each set of friction transmission mechanisms 5, an intermediate fixing structure fixed to the inner ring body 3 is provided between the two sliding seats 51, and a return spring 56 is provided between the intermediate fixing structure and the two sliding seats 51 respectively. The return spring 56 is used to make the sliding seat 51 tend to return to its initial position after axial displacement along the sliding groove. That is, the return spring 56 applies an elastic force to the sliding seat 51 to make it return along the sliding groove or maintain a predetermined working position, thereby maintaining the stable working state of the friction transmission mechanism 5 on the inner ring body 3.

[0040] A spring rod 57 connects the two swing arms 53 in the same friction transmission mechanism 5. The spring rod 57 is a telescopic structure with a stretching stroke and a limited compression stroke. The spring rod 57 can be a telescopic rod with a limit shoulder, a sleeve-type elastic rod, or other structures that have an elastic stroke in the stretching direction and are limited in the compression direction. The spring rod 57 is used to limit the swing range of the two swing arms 53 and the friction wheel 54 on the one hand, and on the other hand, when the friction wheel 54 on one side is used as an effective power take-off wheel, it can transmit the movement tendency of the swing arm 53 or the sliding seat 51 on that side to the swing arm 53 on the other side, so that the friction wheel 54 on the other side reduces or releases the clamping force on the corresponding outer ring body 2.

[0041] As a further implementation method, such as Figure 9 As shown, this embodiment also includes a ratchet mechanism 8. The ratchet mechanism 8 includes a ratchet 82 coaxially fixed to the friction wheel 54, ratchet teeth 81 oscillatingly mounted on the rocker arm 53, and an elastic element, i.e., an elastic rotating element 83, connected to the ratchet teeth. The elastic rotating element 83 causes the ratchet teeth 81 to tend to engage with the ratchet 82, thereby restricting the friction wheel 54 to rotate effectively only in a set direction. The ratchet 82 is coaxially fixed to the friction wheel 54, thus limiting the rotation direction of the friction wheel 54 to the ratchet mechanism 8.

[0042] In a pair of friction transmission mechanisms 5, the allowable rotation directions of the ratchet mechanisms 8 corresponding to the friction wheels 54 at the left and right ends are opposite. By making the anti-reverse directions of the ratchet mechanisms 8 on both sides opposite, when the pipe 4 is offset in one axial direction, the friction wheel 54 at the end in the offset direction can effectively take force; when the pipe 4 is offset in the opposite axial direction, the friction wheel 54 at the other end can effectively take force. This can prevent the friction wheels 54 from spinning in the opposite direction or canceling the transmission during the reciprocating axial offset of the pipe 4, so that the reciprocating axial offset of the pipe 4 can be converted into effective circumferential displacement power.

[0043] Working principle: Combining Figure 10The axial offset process of the grouped friction transmission mechanism 5 is explained. Taking the axial offset of pipe 4 to the right as an example, pipe 4 drives the inner ring body 3 and the friction transmission mechanism 5 on it to move to the right through the annular gear ring 41, the limiting ring 42, and the inner ring damping wheel 61. The friction wheel 54 at the offset end rotates in the allowed direction under the friction of the corresponding outer ring body 2 and the unidirectional restriction of the ratchet mechanism 8, and drives the rolling gear 62 to roll along the annular gear ring 41 through the transmission mechanism 7, thereby causing the inner ring body 3 to rotate circumferentially around pipe 4.

[0044] Meanwhile, the friction wheel 54 at the offset end receives a reaction force from the corresponding outer ring 2. This reaction force is transmitted to the same set of friction transmission mechanisms 5 via the swing arm 53 and the sliding seat 51, causing the corresponding sliding seat 51 to undergo axial displacement within the sliding groove. This displacement, in turn, drives the swing arm 53 at the reverse offset end to adjust its position via the spring rod 57. After the swing arm 53 at the reverse offset end is adjusted, the friction wheel 54 on it reduces or releases the clamping force acting on the corresponding outer ring 2, thereby reducing the resistance formed by the friction wheel 54 on this side to the circumferential rotation of the inner ring 3.

[0045] When the pipe 4 shifts axially to the left, the friction transmission mechanisms 5 at both ends act in opposite directions. At this time, the left friction wheel 54 acts as an effective force-taking wheel, driving the rolling gear 62 to roll along the annular gear ring 41 through the transmission mechanism 7; the right friction wheel 54 reduces or releases the clamping force on the corresponding outer ring 2. Thus, during the reciprocating axial shift of the pipe 4, the left and right friction wheels 54 can alternately take force and alternately reduce resistance, causing a relative circumferential displacement between the inner ring 3 and at least one side of the outer ring 2.

[0046] Through the above structure and process, the impact-resistant pipe support of this embodiment forms a two-stage action relationship: First, the single-sided friction transmission mechanism 5 can utilize the vibration or offset of the pipe 4 to make the friction wheel 54 rotate and drive the rolling gear 62 to roll along the annular gear ring 41, thereby causing the inner ring 3 and the outer ring 2 to rotate circumferentially; Second, the paired left and right friction transmission mechanisms 5 can form a force-taking on one side and drag reduction on the other side when the pipe 4 is axially offset, so that the inner ring 3 and the outer ring 2 can further generate relative circumferential displacement. In this way, the working position of the friction wheel 54 and the contact position between the friction wheel 54 and the outer ring 2 can change during use, reducing the problem of long-term pressure and repeated wear in the local contact area.

[0047] In other embodiments, the inner ring damping wheel 61, the outer ring damping wheel 22, and the friction wheel 54 can be made of rubber, polyurethane, composite elastic, or metal-framed rubber-coated wheels; the bevel gear transmission structure in the transmission mechanism 7 can be replaced with a universal joint, synchronous pulley, sprocket, or other mechanical transmission structure capable of transmitting torque, depending on the installation space; the ratchet mechanism 8 can also be replaced with a one-way bearing, an overrunning clutch, or other structure capable of limiting the unidirectional rotation of the friction wheel 54. Any of the above replacement methods that enable the friction wheel 54 to take force and drive the inner ring body 3 to rotate circumferentially are considered equivalent replacement methods under the technical concept of this invention.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An impact-resistant pipe support for installing pipes, characterized in that, The system includes a base, in which an inner ring is provided. The inner ring is rotatably fitted onto the outside of the pipe, and an annular toothed ring is fixedly fitted onto the outer wall of the pipe. The inner ring is provided with a vibration damping device, which includes an outer ring rotatably fitted on the outside of the pipe, and a plurality of friction transmission mechanisms spaced circumferentially along the inner ring. The friction transmission mechanism includes a swing arm that can swing axially in the inner ring body, a friction wheel rotatably connected to one end of the swing arm, a compression spring that abuts against the swing arm, a rolling gear that meshes with the ring gear, and a transmission mechanism that drivesly connects the friction wheel and the rolling gear. The friction wheel is connected to the inner wall of the outer ring body by rolling friction along the axial direction of the inner ring body, and the compression spring causes the swing arm to tend to swing in the direction that makes the friction wheel press against the outer ring body.

2. The impact-resistant pipe support according to claim 1, characterized in that, The inner wall of the inner ring body is provided with a plurality of inner ring support seats at intervals along the circumference, and the inner ring support seats are provided with rotatable inner ring damping wheels. A limiting ring is provided on the outer wall of the pipe, and an inner ring limiting groove is formed between the limiting ring and the annular toothed ring. The inner ring damping wheel is in rolling engagement with the inner ring limiting groove.

3. The impact-resistant pipe support according to claim 1, characterized in that, The outer wall of the outer ring body is provided with a plurality of outer ring support seats at intervals along the circumference, and the outer ring support seats are provided with rotatable outer ring damping wheels; The inner wall of the substrate is provided with an annular outer ring limiting groove, and the outer ring damping wheel is in rolling engagement with the outer ring limiting groove.

4. The impact-resistant pipe support according to claim 1, characterized in that, The vibration damping device is provided in pairs and is symmetrically arranged at the left and right ends of the inner ring body along the axial direction.

5. The impact-resistant pipe support according to claim 4, characterized in that, Each friction transmission mechanism on the left-end vibration damping device is set up in correspondence with each friction transmission mechanism on the right-end vibration damping device, and the two friction transmission mechanisms set up in correspondence on the left and right ends are regarded as a group. In each set of friction transmission mechanisms, when the pipe is offset along the axial direction, the friction wheel at the offset end rotates under the friction of the corresponding outer ring body and drives the rolling gear to roll along the ring gear through the transmission mechanism; the friction wheel at the reverse offset end reduces or releases the clamping force acting on the corresponding outer ring body.

6. The impact-resistant pipe support according to claim 5, characterized in that, A sliding groove extending along the axial direction of the inner ring body is provided on the outer wall of the inner ring body. The friction transmission mechanism includes a sliding seat that is slidably connected to the sliding groove, a rotating seat disposed on the sliding seat, and a return spring that abuts against the rotating seat; In each friction drive mechanism, the swing arm is hinged to the rotating seat, and the return spring causes the sliding seat to tend to move away from the inner ring. A spring rod is connected between two swing arms in the same set of friction transmission mechanisms. The spring rod is a telescopic structure with a stretching stroke and a limiting compression stroke.

7. The impact-resistant pipe support according to claim 2, characterized in that, The inner ring support is provided with a drive gear fixed coaxially with the rolling gear. The transmission mechanism includes a transmission rod passing through the inner ring body, a hanger, and a universal coupling. Both ends of the transmission rod are provided with transmission bevel gears. One end of the transmission rod meshes with the drive gear, and the other end meshes with the bevel gear provided on the hanger. The bevel gear provided on the hanger is connected to the universal coupling. The universal coupling is connected to the shaft of the friction wheel. The shaft of the universal coupling is provided with a spline connection structure, which is used to generate expansion and contraction compensation and maintain torque transmission when the position of the friction wheel changes.

8. The impact-resistant pipe support according to claim 1, characterized in that, It also includes a ratchet mechanism, which includes a ratchet fixed coaxially with the friction wheel, a ratchet tooth pivotally mounted on a swing arm, and an elastic element connected to the ratchet tooth, the elastic element causing the ratchet tooth to tend to engage with the ratchet.

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