Vibration reduction supporting device for metal hose

Abstract

The invention discloses a metal hose vibration reduction supporting device which is characterized in that a hose clamp is connected with four stand columns on a spring support through eight springs, a supporting connecting plate is fixed to the bottom of the spring support, the supporting connecting plate is rotationally connected to the upper end of an inner supporting rod, and the inner supporting rod is fixed to a base in a height-adjustable mode. The vibration amplitude of the metal hose in the working process is reduced through the hose clamp, meanwhile, axial vibration in the direction of the metal hose is absorbed through the spring, the inherent frequency of the hose is changed, and the hose can be prevented from generating resonance with the external frequency under the severe working condition; different working height position requirements of the metal hose can be met by adjusting the height of the inner supporting rod relative to the base; by adjusting the angle between the supporting connecting plate and the inner supporting rod, different axial angle requirements during actual connection of the metal hose can be met.

Description

Technical Field

[0001] This invention relates to pipe support devices, and more specifically to a metal flexible hose vibration damping support device. Background Technology

[0002] Metal flexible hoses, as a key connector that combines flexibility, high pressure resistance, and corrosion resistance, are widely used in the field of large-scale engineering machinery. They are mainly composed of an inner metal corrugated pipe and an outer metal wire braided mesh sleeve. The inner metal corrugated pipe is made of thin-walled stainless steel and other materials through hydraulic forming, while the outer metal wire braided mesh sleeve is made of high-strength steel wire interwoven together, which can protect the inner metal corrugated pipe and prevent it from being damaged by external mechanical scratches and impacts.

[0003] Most metal flexible hoses are rigidly connected to the piping system only through flanges and joints at both ends, leaving the main body of the hose completely suspended. This installation method makes metal flexible hoses highly susceptible to resonance problems under complex working conditions. When large construction machinery is running, core components such as the power unit, pump body, and motor generate continuous periodic excitation forces. When the excitation frequency couples with the natural frequency of the suspended section of the metal flexible hose, the hose will experience large-amplitude forced vibration. During vibration, the crests and troughs of the inner metal corrugated pipe will experience high-frequency, reciprocating relative friction with the outer metal wire braided mesh. This continuous mechanical wear will gradually damage the surface of the corrugated pipe, causing the wall thickness to decrease and cracks to initiate. It will also lead to fatigue fracture of the metal wires in the braided mesh and loosening of the mesh. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a support device that has a significant vibration reduction effect without affecting the original function of the metal hose.

[0005] Technical Solution: The present invention provides a metal flexible hose vibration damping support device, comprising a fixedly installed spring bracket and a flexible hose clamp with metal flexible hose clamping holes. The spring bracket has a bracket base plate, with a column distributed at each of the four corners of the upper surface of the bracket base plate. The flexible hose clamp is disposed above the bracket base plate, and the flexible hose clamp is connected to each column by two springs. The springs are arranged in the same direction as the axis of the metal flexible hose clamping holes. Eight springs are symmetrically distributed on the upper, lower, left, right, front, and rear sides of the flexible hose clamp to provide balanced support force to the flexible hose clamp.

[0006] Furthermore, the hose clamp includes two clamping bodies, an upper and a lower one. The bottom surface of the clamping body has a semi-circular groove, and both ends of the clamping body have a first through hole. The two clamping bodies are connected by bolts, and the semi-circular grooves of the two clamping bodies are aligned to form the clamping hole for the metal hose.

[0007] Furthermore, the inner wall of the semi-circular groove has a flexible protective layer.

[0008] Furthermore, the clamp body has first threaded holes at its four corners, one end of the spring is sleeved on the column, and the other end is fixed to the corresponding first threaded hole by screws.

[0009] Furthermore, the metal hose vibration damping support device also includes a support connecting plate and an inner support rod. The support connecting plate is fixed to the bottom of the bracket base plate, and the support connecting plate is rotatably mounted on the upper end of the inner support rod, with the rotation axis perpendicular to the axis of the metal hose clamping hole.

[0010] Furthermore, the support connecting plate includes an upper base plate fixed to the bottom of the bracket base plate. The bottom of the upper base plate has a support ear plate with a fourth through hole, and the upper end of the inner support rod has an ear seat with a fifth through hole. The support ear plate and the ear seat are inserted into each other and connected by bolts.

[0011] Furthermore, a second through hole is provided on the base plate of the bracket, and a third through hole is provided on the upper base plate. The base plate of the bracket and the upper base plate are connected by bolts.

[0012] Furthermore, the metal flexible hose vibration damping support device also includes a base with an outer support sleeve, and an inner support rod inserted into the outer support sleeve and capable of height adjustment.

[0013] Furthermore, a second threaded hole is provided on the circumferential surface of the outer support sleeve, and the height of the inner support rod is locked by screwing the screw into the second threaded hole.

[0014] Furthermore, the base also includes a base plate, with an outer support sleeve fixed to the upper surface of the base plate. Several third threaded holes are distributed on the base plate for fixing the base plate with screws.

[0015] This invention adjusts the clamping angle by adjusting the relative angle between the support connecting plate and the inner support rod, and adjusts the clamping height by adjusting the relative position between the inner support rod and the outer support sleeve, thereby meeting the vibration reduction support requirements of metal hoses at different height and angle positions and improving the applicability of the device.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The present invention uses a hose clamp to hold the suspended part of the metal hose, which restricts the space of the suspended metal hose. It can adjust the natural frequency of the metal hose, so that it can avoid resonance with the external frequency under complex working conditions, reduce the amplitude of the metal hose during operation, and absorb the vibration of the metal hose during operation through the spring, thereby achieving a vibration reduction effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a metal flexible hose vibration damping support device provided in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the specific structure of the clamp in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the spring bracket in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the cooperation structure between the support connecting plate and the inner support rod in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the base structure in an embodiment of the present invention. Detailed Implementation

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Appendix Figures 1 to 5 The accompanying figure labels are as follows:

[0024] 1. Hose clamp; 11. Clamp body; 111. First through hole; 112. First threaded hole; 2. Spring; 3. Spring bracket; 31. Column; 32. Bracket base plate; 321. Second through hole; 4. Support connecting plate; 41. Upper base plate; 411. Third through hole; 42. Support ear plate; 421. Fourth through hole; 5. Inner support rod; 51. Ear seat; 511. Fifth through hole; 6. Base; 61. Outer support sleeve; 611. Second threaded hole; 62. Base plate; 621. Third threaded hole.

[0025] like Figure 1 As shown, an embodiment of the present invention provides a metal hose vibration damping support device, including a hose clamp 1, a spring 2, a spring bracket 3, a support connecting plate 4, an inner support rod 5, and a base 6.

[0026] Combination Figure 2 The hose clamp 1 includes two clamping bodies 11, upper and lower. Each clamping body 11 has a semi-circular groove on its bottom surface, a first through hole 111 at the middle of both ends, and first threaded holes 112 at its four corners. The two clamping bodies 11 are fixedly connected by bolts passing through the first through holes 111. The semi-circular grooves of the two clamping bodies 11 align to form a clamping hole for the metal hose. The inner wall of the semi-circular groove has a flexible protective layer made of wear-resistant and highly elastic rubber material, which avoids scratch damage caused by direct contact between the clamp and the outer wall of the metal hose, while also enhancing clamping stability. When clamping the metal hose with bolts, the clamping force should be such that it does not damage the metal hose and there is no relative slippage.

[0027] Combination Figure 3The spring bracket 3 has a bracket base plate 32, with a column 31 distributed at each of the four corners of the upper surface of the bracket base plate 32. The bracket base plate 32 has a linearly arrayed array of second through holes 321. A hose clamp 1 is positioned above the bracket base plate 32, and each hose clamp 1 is connected to each column 31 by two springs 2. The springs 2 are oriented in the same direction as the axis of the metal hose clamping hole. Eight springs 2 are symmetrically distributed on the upper, lower, left, right, and front and rear sides of the hose clamp 1 to provide balanced support. Specifically, one end of the spring 2 is sleeved on the column 31, and the other end is fixed to the corresponding first threaded hole 112 by a screw. The end of the spring 2 sleeved on the column 31 can move axially along the column 31, achieving a small-amplitude height adjustment.

[0028] Combination Figure 4 The support connecting plate 4 includes an upper base plate 41, on which a third through hole 411 corresponding to the second through hole 321 is opened. The bracket base plate 32 and the upper base plate 41 are connected by bolts.

[0029] The support connecting plate 4 is rotatably mounted on the upper end of the inner support rod 5, with its rotation axis perpendicular to the axis of the metal hose clamping hole. Specifically, the bottom of the upper base plate 41 has a support ear plate 42 with a fourth through hole 421, and the upper end of the inner support rod 5 has an ear seat 51 with a fifth through hole 511. The support ear plate 42 and the ear seat 51 are inserted and connected by bolts. Thus, the support connecting plate 4 can rotate to adjust different angles to meet the actual axial angle requirements of the metal hose. After locking the angle with bolts, it can ensure that the metal hose maintains the preset installation angle during operation.

[0030] Combination Figure 5 The base 6 includes a base plate 62 and an outer support sleeve 61 fixed to the upper surface of the base plate 62. Four third threaded holes 621 are distributed circumferentially along the edge of the base plate 62 for fixing the base plate 62 to the ground, equipment frame, or other fixed foundation surface using screws. This ensures that the base 6 is not loose or shifted after installation, providing stable support for the entire vibration damping support device. The outer support sleeve 61 has second threaded holes 611 on its circumferential surface. The inner support rod 5 is inserted into the outer support sleeve 61 and its height can be adjusted. The height of the inner support rod 5 is locked by tightening the screws screwed into the second threaded holes 611.

[0031] The working principle of this invention is as follows:

[0032] When the metal hose is in operation, the periodic excitation force generated by the power unit, pump body, and other equipment will drive the metal hose to vibrate. The hose clamp 1 forms a spatial limit on the suspended section of the metal hose, directly limiting the maximum amplitude of the metal hose; the eight symmetrically distributed springs 2 will undergo axial expansion and contraction deformation with the vibration of the metal hose. The elastic restoring force of the springs absorbs the vibration energy along the axial direction of the metal hose, and at the same time changes the natural vibration frequency of the metal hose, making it deviate from the external excitation frequency, thereby effectively avoiding the occurrence of resonance and reducing the relative friction and wear between the metal corrugated pipe and the outer braided mesh sleeve.

[0033] When the installation height of the metal hose changes or needs to adapt to different working conditions, loosen the fastening screws on the outer support sleeve 61, push the inner support rod 5 axially along the inner wall of the outer support sleeve 61 until the target height is reached, and then tighten the fastening screws to complete the height adjustment. If a small-scale height adjustment is required, the axial movement characteristic of the spring 2 on the column 31 can be used to adjust the depth of the spring 2 on the column 31, thereby achieving a slight correction in the height of the hose clamp 1 and ensuring a good fit with the metal hose.

[0034] When the connection angle of the metal hose changes or an angle deviation occurs during installation, loosen the hinge nut between the support ear plate 42 and the ear seat 51, rotate the support connecting plate 4, and drive the metal hose to rotate around the axis of the hinge bolt until the angle is suitable. Then tighten the hinge nut to complete the angle fixation. This angle adjustment method can adapt to different axial angle requirements of the metal hose in the vertical plane, ensuring that the installation posture of the device and the metal hose is consistent, and avoiding additional stress caused by angle deviation.

[0035] In summary, this invention solves the problems of vibration and wear caused by vibration in the actual operation of metal hoses, and can meet the vibration reduction and support requirements of metal hoses at different working heights and working angles.

Claims

1. A metal flexible hose vibration damping support device, characterized in that, The device includes a fixed spring bracket (3) and a hose clamp (1) with a metal hose clamping hole. The spring bracket (3) has a bracket base plate (32) with a column (31) distributed at each of the four corners of the upper end face of the bracket base plate (32). The hose clamp (1) is set above the bracket base plate (32), and the hose clamp (1) is connected to each column (31) by two springs (2). The setting direction of the springs (2) is consistent with the axial direction of the metal hose clamping hole. The eight springs (2) are symmetrically distributed on the upper, lower, left, right and front sides of the hose clamp (1) to provide a balanced support force for the hose clamp (1).

2. The metal flexible hose vibration damping support device according to claim 1, characterized in that, The hose clamp (1) includes two clamp bodies (11) on the top and bottom. The bottom surface of the clamp body (11) has a semi-circular groove, and the two ends of the clamp body (11) have a first through hole (111). The two clamp bodies (11) are connected by bolts, and the semi-circular grooves of the two clamp bodies (11) are aligned to form the clamping hole of the metal hose.

3. The metal flexible hose vibration damping support device according to claim 2, characterized in that, The inner wall of the semi-circular groove has a flexible protective layer.

4. The metal flexible hose vibration damping support device according to claim 2, characterized in that, The clamp body (11) has first threaded holes (112) at its four corners. One end of the spring (2) is sleeved on the column (31), and the other end is fixed to the corresponding first threaded hole (112) by screws.

5. The metal flexible hose vibration damping support device according to any one of claims 1 to 4, characterized in that, It also includes a support connecting plate (4) and an inner support rod (5). The support connecting plate (4) is fixed to the bottom of the bracket base plate (32). The support connecting plate (4) is rotatably set on the upper end of the inner support rod (5), and the rotation axis is perpendicular to the axis of the metal hose clamping hole.

6. The metal flexible hose vibration damping support device according to claim 5, characterized in that, The support connecting plate (4) includes an upper base plate (41) fixed to the bottom of the bracket base plate (32). The bottom of the upper base plate (41) has a support ear plate (42) with a fourth through hole (421). The upper end of the inner support rod (5) has an ear seat (51) with a fifth through hole (511). The support ear plate (42) and the ear seat (51) are inserted and connected by bolts.

7. The metal flexible hose vibration damping support device according to claim 6, characterized in that, The bracket base plate (32) has a second through hole (321), and the upper base plate (41) has a third through hole (411). The bracket base plate (32) and the upper base plate (41) are connected by bolts.

8. The metal flexible hose vibration damping support device according to claim 5, characterized in that, It also includes a base (6) with an outer support sleeve (61), and an inner support rod (5) inserted into the outer support sleeve (61) and capable of height adjustment.

9. The metal flexible hose vibration damping support device according to claim 8, characterized in that, The outer support sleeve (61) has a second threaded hole (611) on its circumferential surface. The inner support rod (5) is locked in height by screwing the screw into the second threaded hole (611).

10. The metal flexible hose vibration damping support device according to claim 8, characterized in that, The base (6) also includes a base plate (62), an outer support sleeve (61) is fixed to the upper end face of the base plate (62), and a number of third threaded holes (621) are distributed on the base plate (62) for fixing the base plate (62) with screws.

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