An asphalt pump with a shock absorption mechanism

Abstract

This invention discloses an asphalt pump with a vibration damping mechanism, comprising a base, a movable base, an asphalt pump body, and a motor for driving the asphalt pump body. The asphalt pump body and the motor are fixedly mounted on the movable base. A groove is provided on the upper surface of the base, and the movable base is embedded in the groove. Multiple vibration damping devices for supporting the movable base are distributed at the bottom of the groove. Each vibration damping device includes a central vibration damping structure, an elastic ring, and at least two closed-loop elastic structures. A limiting mechanism located above the movable base on the base is also provided to prevent the movable base from dislodging from the groove. This invention, by setting multiple vibration damping devices to support and dampen the movable base, and by incorporating a central vibration damping structure, an elastic ring, and closed-loop elastic structures, achieves a composite vibration damping effect, providing excellent vibration damping performance even when the asphalt pump experiences different vibration intensities.

Description

Technical Field

[0001] This invention belongs to the field of asphalt pump technology, and specifically relates to an asphalt pump with a shock absorption mechanism. Background Technology

[0002] The asphalt pump is a positive displacement pump with significant advantages such as simple structure, small size, stable and reliable operation, low pressure pulsation, stable flow, low noise, and high efficiency. It is used in asphalt depots, oil fields, heavy oil depots, and as part of equipment for heating heat transfer oil vapors, as well as for asphalt and heavy oil processing.

[0003] Asphalt pumps generate vibrations during operation. Prolonged and severe vibrations can cause internal components of the asphalt pump to loosen, affecting its service life. Therefore, appropriate vibration damping and buffering devices are usually installed to reduce the vibration of the asphalt pump and thus extend its service life.

[0004] When asphalt pumps are used to transport different media, the degree of vibration generated varies. Existing asphalt pumps generally only achieve vibration reduction through a transmission structure and a single spring. For example, the utility model patent with publication number CN216666940U, entitled "Vibration Damping Mounting Base for Asphalt Pumps," achieves vibration reduction by setting up a transmission mechanism such as a vibration damping plate and vibration damping rod, in conjunction with a spring. Its vibration reduction effect ultimately depends only on the spring, resulting in poor vibration reduction. When the vibration intensity of the asphalt pump is high, the vibration reduction effect provided by relying solely on the spring is poor. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an asphalt pump with a shock-absorbing mechanism. The shock-absorbing device installed in this asphalt pump can achieve two-stage shock absorption and has excellent shock absorption effect.

[0006] The objective of this invention is achieved through the following technical solution: an asphalt pump with a shock-absorbing mechanism, comprising a base, a movable base, an asphalt pump body, and a motor for driving the asphalt pump body, wherein the asphalt pump body and the motor are fixedly mounted on the movable base, and the upper end face of the base is provided with a groove, and the movable base is embedded in the groove;

[0007] The bottom of the groove is equipped with multiple shock-absorbing devices for supporting the movable base. Each shock-absorbing device includes a central shock-absorbing structure, an elastic ring, and at least two closed-loop elastic structures. The central shock-absorbing structure includes an outer cylinder and terminals slidably fitted inside the outer cylinder. The inner cavity of the outer cylinder is provided with springs that abut against the terminals. The closed-loop elastic structures include symmetrically distributed upper and lower arched spring pieces with opposite recesses. Both the ends of the upper and lower arched spring pieces are fixedly provided with inclined plates. The ends of the upper and lower arched spring pieces are fixedly connected, and the corresponding inclined plates on the upper and lower arched spring pieces are joined together to form a groove. All upper arched spring pieces... The spring pieces are arranged in a cross-stacked manner, and a movable sleeve with a central hole is fixed between all the upper bow-shaped spring pieces. The movable sleeve is slidably fitted onto the terminal and can rotate around the center line of the terminal. The upper end of the terminal protrudes upward relative to the movable sleeve. All the lower bow-shaped spring pieces are arranged in a cross-stacked manner, and a fixed sleeve fitted onto the outer cylinder is fixed between all the lower bow-shaped spring pieces. An adjustment structure is provided between the fixed sleeve and the outer cylinder for adjusting the height position of the fixed sleeve on the outer cylinder. The lower end of the outer cylinder protrudes downward relative to the fixed sleeve, and the protruding part is detachably connected to the bottom of the groove. The elastic ring is fitted outside all the closed-loop elastic structures and embedded in the slot.

[0008] The base is also equipped with a limiting mechanism located above the movable base to prevent the movable base from dislodging from the groove.

[0009] Preferably, the top of the terminal is fixedly provided with a limiting push block for driving the closed-loop elastic structure to deform and preventing the terminal from disengaging from the movable sleeve.

[0010] Preferably, the bottom of the groove is provided with screw holes, and the lower end of the outer cylinder is fixed with a stud that is screwed into the screw holes.

[0011] Preferably, the adjustment structure includes an external thread on the outer wall of the outer cylinder and an internal thread in the hollow position of the fixed sleeve, with the fixed sleeve screwed onto the outside of the outer cylinder.

[0012] Preferably, the hollow position of the upper bow-shaped spring piece and the middle position of the lower bow-shaped spring piece are provided with through holes. The movable sleeve includes a first connecting ring, and a first limiting ring is fixed at each end of the first connecting ring and is coaxially arranged with the first connecting ring. All positions of the upper bow-shaped spring pieces with through holes are sleeved on the first connecting ring, and the two first limiting rings press and fix all the upper bow-shaped spring pieces. The fixed sleeve includes a second connecting ring, and a second limiting ring is fixed at each end of the second connecting ring and is coaxially arranged with the second connecting ring. All positions of the lower bow-shaped spring pieces with through holes are sleeved on the second connecting ring, and the two second limiting rings press and fix all the lower bow-shaped spring pieces.

[0013] Preferably, the inclined plate is provided with a buckle to prevent the elastic ring from dislodging from the slot.

[0014] Preferably, the limiting mechanism includes a limiting plate that partially covers the movable base, and the limiting plate is provided with bolts that pass through the limiting plate and are screwed to the base.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention uses multiple shock-absorbing devices to support and dampen the movable base. The shock-absorbing devices include a central shock-absorbing structure, an elastic ring, and a closed-loop elastic structure, which can achieve a composite shock-absorbing effect, giving the present invention excellent shock-absorbing performance.

[0017] 2. In the damping device, the central damping structure can not only achieve primary damping and buffering, but also combine with the elastic ring and closed-loop elastic structure to achieve secondary damping and buffering.

[0018] 3. The central damping structure can also realize the installation and fixation of the damping device, making the installation of the damping device very convenient. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 A perspective view of the base with vibration damping devices installed;

[0021] Figure 3 A 3D view of the shock absorption device;

[0022] Figure 4 A 3D model of the activity set;

[0023] Figure 5 A three-dimensional view of the fixed sleeve;

[0024] The markings in the diagram are: 1. Base, 2. Movable base, 3. Asphalt pump body, 4. Motor, 5. Groove, 6. Shock absorber, 7. Central shock absorber structure, 8. Elastic ring, 9. Closed-loop elastic structure, 10. Outer cylinder, 11. Terminal, 13. Upper bow-shaped spring, 14. Lower bow-shaped spring, 15. Inclined piece, 16. Slot, 17. Movable sleeve, 18. Fixed sleeve, 19. Buckle, 20. First connecting ring, 21. First limiting ring, 22. Second connecting ring, 23. Second limiting ring, 24. Limiting plate, 25. Limiting push block. Detailed Implementation

[0025] The present invention will be further described below with reference to the embodiments illustrated in the accompanying drawings:

[0026] Example 1

[0027] like Figures 1-5As shown, an asphalt pump with a shock absorption mechanism includes a base 1, a movable base 2, an asphalt pump body 3, and a motor 4 for driving the asphalt pump body 3. The asphalt pump body 3 and the motor 4 are fixedly installed on the movable base 2. The upper end face of the base 1 is provided with a groove 5. The movable base 2 is embedded in the groove 5. A rubber pad is provided between the periphery of the movable base 2 and the inner wall of the groove 5. The rubber pad is fixed on the movable base 2.

[0028] The bottom of the groove 5 is provided with multiple shock-absorbing devices 6 for supporting the movable base 2. Each shock-absorbing device 6 includes a central shock-absorbing structure 7, an elastic ring 8, and two closed-loop elastic structures 9. The central shock-absorbing structure 7 includes an outer cylinder 10 and terminals 11 slidably fitted inside the outer cylinder 10. The upper end of the terminal 11 abuts against the lower end face of the movable base 2, and the inner cavity of the outer cylinder 10 is provided with a spring abutting against the terminal 11. The closed-loop elastic structures 9 include symmetrically distributed upper arc-shaped spring pieces 13 and lower arc-shaped spring pieces 14 with opposite recesses. Inclined pieces 15 are fixedly provided at the ends of both the upper arc-shaped spring pieces 13 and the lower arc-shaped spring pieces 14. The ends of the upper arc-shaped spring pieces 13 and the lower arc-shaped spring pieces 14 are fixedly connected, and the upper arc-shaped spring pieces 13 and the lower arc-shaped spring pieces 14 are aligned with each other. The oblique pieces 15 are joined together to form a slot 16; two upper bow-shaped spring pieces 13 are stacked crosswise and a movable sleeve 17 with a central hole is fixed between all the upper bow-shaped spring pieces 13. The movable sleeve 17 is slidably sleeved on the terminal 11 and can rotate around the center line of the terminal. The upper end of the terminal 11 protrudes upward relative to the movable sleeve 17; two lower bow-shaped spring pieces 14 are stacked crosswise and a fixed sleeve 18 is fixed between all the lower bow-shaped spring pieces 14 and sleeved on the outer cylinder 10. An adjustment structure for adjusting the height position of the fixed sleeve on the outer cylinder is provided between the fixed sleeve and the outer cylinder. The adjustment structure includes an external thread on the outer wall of the outer cylinder and an internal thread in the hollow position of the fixed sleeve. The fixed sleeve is screwed onto the outside of the outer cylinder 10.

[0029] The lower end of the outer cylinder 10 protrudes downward relative to the fixed sleeve 18, and the protruding part is detachably connected to the bottom of the groove 5; the bottom of the groove 5 is provided with screw holes, and the lower end of the outer cylinder 10 is fixedly provided with a stud that is screwed into the screw holes. This arrangement facilitates the installation of the shock absorption device 6.

[0030] The elastic ring 8 is sleeved outside all the closed-loop elastic structures 9 and embedded in the slot 16. The inclined plate 15 is fixedly provided with a buckle 19 to prevent the elastic ring from dislodging from the slot 16.

[0031] The upper bow-shaped spring piece 13 has a through hole in its hollow position and the lower bow-shaped spring piece 14 has a through hole in its middle position. The movable sleeve 17 includes a first connecting ring 20. Each end of the first connecting ring 20 is fixed with a first limiting ring 21 coaxially arranged with the first connecting ring 20. All the upper bow-shaped spring pieces 13 with through holes are fitted onto the first connecting ring 20, and the two first limiting rings 21 press and fix all the upper bow-shaped spring pieces 13. The fixed sleeve 18 includes a second connecting ring 22. Each end of the second connecting ring 22 is fixed with a second limiting ring 23 coaxially arranged with the second connecting ring 22. All the lower bow-shaped spring pieces 14 with through holes are fitted onto the second connecting ring 22, and the two second limiting rings 23 press and fix all the lower bow-shaped spring pieces 14.

[0032] The base 1 is also provided with a limiting mechanism located above the movable base 2 to prevent the movable base 2 from disengaging from the groove 5. The limiting mechanism includes a limiting plate 24 that partially covers the movable base 2. The limiting plate 24 is provided with bolts that pass through the limiting plate 24 and are screwed to the base 1. A rubber pad is also fixed on the inner side of the limiting plate 24, and the rubber pad is pressed against the movable base 2.

[0033] The terminal 11 is fixedly provided with a limiting push block 25 at the top, which is used to drive the closed-loop elastic structure 9 to deform and prevent the terminal 11 from disengaging from the movable sleeve 17.

[0034] The working principle of this invention is as follows:

[0035] In this invention, the movable base 2 is set in the groove 5 on the base, and the shock-absorbing device 6 set in the groove 5 is used to support and dampen the movable base 2. When the motor 4 on the movable base 2 drives the asphalt pump body 3 to run and generate vibration, if the vibration intensity is small, that is, the vibration amplitude is low, only the central shock-absorbing structure 7 in the shock-absorbing device 6 works, and the shock absorption and buffering are achieved solely by the deformation of the spring in the central shock-absorbing structure 7. This is the first-level shock absorption and buffering. When the vibration intensity is large, that is, the vibration amplitude is large, the terminal 11 retracts into the outer cylinder 10 to a greater extent, and the limiting push block 25 on the terminal 11 will push the closed-loop elastic structure 9 to compress and deform downward. When the closed-loop elastic structure 9 is compressed and deformed, the two ends of the closed-loop elastic structure 9 will expand outward. At this time, the elastic ring 8 will laterally tighten the closed-loop elastic structure 9. Therefore, the closed-loop elastic structure 9 and the elastic ring 8 will deform synchronously, and together with the central shock-absorbing structure 7, they will achieve shock absorption and buffering. At this time, the shock-absorbing device 6 has excellent shock absorption and buffering effect. This is the second-level shock absorption and buffering, and the second-level shock absorption and buffering can withstand greater vibration impact force.

[0036] In this invention, the fixed sleeve 18 is screwed to the outer cylinder 10. The height of the fixed sleeve 18 on the outer cylinder 10 is maintained by the friction of the threads. By rotating the fixed sleeve 18, the height position of the fixed sleeve 18 on the outer cylinder 10 can be adjusted, which means that the height position of the fixed sleeve 18 on the central shock-absorbing structure 7 can also be adjusted. At this time, the height of the closed-loop elastic structure 9 on the central shock-absorbing structure 7 will also change accordingly. When the upper end of the movable sleeve 17 on the closed-loop elastic structure 9 is in contact with the lower end of the limiting push block 25, the closed-loop elastic structure 9 and the central shock-absorbing structure 7 work together to absorb shock, rather than being two separate shock-absorbing buffers.

[0037] It should be understood that in the claims and description of this invention, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".

[0038] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An asphalt pump with a shock-absorbing mechanism, comprising a base, a movable base, an asphalt pump body, and a motor for driving the asphalt pump body, wherein the asphalt pump body and the motor are fixedly mounted on the movable base, characterized in that, The upper surface of the base is provided with a groove, and the movable base is embedded in the groove; The bottom of the groove is equipped with multiple shock-absorbing devices for supporting the movable base. Each shock-absorbing device includes a central shock-absorbing structure, an elastic ring, and at least two closed-loop elastic structures. The central shock-absorbing structure includes an outer cylinder and terminals slidably fitted inside the outer cylinder. The inner cavity of the outer cylinder is provided with springs that abut against the terminals. The closed-loop elastic structures include symmetrically distributed upper and lower arched spring pieces with opposite recesses. Both the ends of the upper and lower arched spring pieces are fixedly provided with inclined plates. The ends of the upper and lower arched spring pieces are fixedly connected, and the corresponding inclined plates on the upper and lower arched spring pieces are joined together to form a groove. All upper arched spring pieces... The spring pieces are arranged in a cross-stacked manner, and a movable sleeve with a central hole is fixed between all the upper bow-shaped spring pieces. The movable sleeve is slidably fitted onto the terminal and can rotate around the center line of the terminal. The upper end of the terminal protrudes upward relative to the movable sleeve. All the lower bow-shaped spring pieces are arranged in a cross-stacked manner, and a fixed sleeve fitted onto the outer cylinder is fixed between all the lower bow-shaped spring pieces. An adjustment structure is provided between the fixed sleeve and the outer cylinder for adjusting the height position of the fixed sleeve on the outer cylinder. The lower end of the outer cylinder protrudes downward relative to the fixed sleeve, and the protruding part is detachably connected to the bottom of the groove. The elastic ring is fitted outside all the closed-loop elastic structures and embedded in the slot. The base is also equipped with a limiting mechanism located above the movable base to prevent the movable base from dislodging from the groove.

2. An asphalt pump with a shock-absorbing mechanism according to claim 1, characterized in that, The terminal is fixedly provided with a limiting push block at the top, which is used to drive the closed-loop elastic structure to deform and prevent the terminal from disengaging from the movable sleeve.

3. An asphalt pump with a shock-absorbing mechanism according to claim 1 or 2, characterized in that, The bottom of the groove has screw holes, and the lower end of the outer cylinder is fixed with a stud that is screwed into the screw holes.

4. An asphalt pump with a shock-absorbing mechanism according to claim 1, characterized in that, The adjustment structure includes an external thread on the outer wall of the outer cylinder and an internal thread in the hollow position of the fixed sleeve, with the fixed sleeve screwed onto the outside of the outer cylinder.

5. An asphalt pump with a shock-absorbing mechanism according to claim 3, characterized in that, The upper bow-shaped spring piece has a through hole in its hollow position and the lower bow-shaped spring piece has a through hole in its middle position. The movable sleeve includes a first connecting ring, and a first limiting ring is fixed at each end of the first connecting ring and is coaxially arranged with the first connecting ring. All the upper bow-shaped spring pieces with through holes are sleeved on the first connecting ring and the two first limiting rings press and fix all the upper bow-shaped spring pieces. The fixed sleeve includes a second connecting ring, and a second limiting ring is fixed at each end of the second connecting ring and is coaxially arranged with the second connecting ring. All the lower bow-shaped spring pieces with through holes are sleeved on the second connecting ring and the two second limiting rings press and fix all the lower bow-shaped spring pieces.

6. An asphalt pump with a shock-absorbing mechanism according to claim 1, characterized in that, The limiting mechanism includes a limiting plate that partially covers the movable base, and the limiting plate is provided with bolts that pass through the limiting plate and are screwed to the base.

7. An asphalt pump with a shock-absorbing mechanism according to claim 1, characterized in that, The inclined plate is fixed with a buckle to prevent the elastic ring from dislodging from the slot.

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