Damping mechanism of liquid ammonia pump
By adopting a combination structure of L-shaped support feet, rubber pads, and threaded rod nuts in the shock absorption mechanism of the liquid ammonia pump, the vibration problem caused by the lack of shock absorption measures in the liquid ammonia pump is solved, thereby improving the stability and service life of the equipment.
Patent Information
- Application Number
- CN202520052240.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-09
AI Technical Summary
The existing liquid ammonia pumps lack vibration damping measures during use, causing ground vibrations to be transmitted to the liquid ammonia pumps, which can easily lead to damage.
A shock-absorbing mechanism for a liquid ammonia pump was designed. By fixing an L-shaped support foot to the lower end of the liquid ammonia pump body and using a rubber pad between the upper and lower mounting plates for shock absorption, a stable shock-absorbing structure is formed by combining the fixed connection of the threaded rod and nut.
It effectively absorbs and disperses the vibration of the liquid ammonia pump, improves the stability and smoothness of the equipment, and extends the service life of the liquid ammonia pump.
Smart Images

Figure CN223839414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid ammonia pump technology, and in particular to a shock absorption mechanism for a liquid ammonia pump. Background Technology
[0002] A liquid ammonia pump is a device used to transport liquid ammonia, typically consisting of a pump body, motor, seals, and inlet / outlet pipes. Liquid ammonia pumps are widely used in chemical, metallurgical, and refrigeration industries, and can be used to transport media such as liquid ammonia, ammonia water, and ammonia gas. Liquid ammonia pumps feature large flow rates, long transport distances, high transport pressures, and stable operation, meeting the needs of various industries. However, existing liquid ammonia pumps are typically mounted directly to a platform using bolts, lacking vibration damping measures. This allows ground vibrations to be transmitted to the pump, potentially causing damage over time. Therefore, we have developed a vibration damping mechanism for liquid ammonia pumps. Utility Model Content
[0003] The main purpose of this utility model is to provide a shock-absorbing mechanism for a liquid ammonia pump, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A shock-absorbing mechanism for a liquid ammonia pump includes a liquid ammonia pump body. Several L-shaped support legs are fixedly connected to the lower end of the liquid ammonia pump body. The several L-shaped support legs are movably connected to an upper mounting plate by bolts. A lower mounting plate is movably connected to the lower end of the upper mounting plate. Four rubber pads are provided between the lower mounting plate and the upper mounting plate.
[0006] Preferably, each of the four rubber pads has an upper protrusion fixedly connected to its upper end, and each of the four rubber pads has a lower protrusion fixedly connected to its lower end. The four upper protrusions are narrower at the top and wider at the bottom, and the four lower protrusions are wider at the top and narrower at the bottom. The outer surfaces of the four lower protrusions and the four upper protrusions are each provided with a plurality of anti-slip grooves. The four upper protrusions and the four rubber pads are each provided with through holes that pass through from top to bottom.
[0007] By adopting the above technical solution, the stability of the rubber pad is improved by the action of several anti-slip grooves, preventing slippage and shaking.
[0008] Preferably, two threaded rods are fixedly connected to the front part of the upper end and the rear part of the upper end of the lower mounting plate, and nuts are threadedly connected to the outer surfaces of the four threaded rods. Side wings are fixedly connected to the left and right parts of the outer surfaces of the four nuts. Two No. 1 mounting holes are opened on the left part of the upper end and the right part of the upper end of the lower mounting plate, and four No. 1 slots are opened in the middle part of the upper end of the lower mounting plate.
[0009] Preferably, all four card slots are wider at the top and narrower at the bottom, and each of the four card slots is adapted to one of the four lower protrusions.
[0010] Preferably, the upper mounting plate has connection holes at all four corners of its upper end, four No. 2 mounting holes and four No. 3 mounting holes at its upper end, and four No. 2 slots in the middle of its lower end, all of which are narrower at the top and wider at the bottom.
[0011] Preferably, the four threaded rods are respectively inserted and movably connected to the four connecting holes, and the four nuts are all located on the upper part of the upper mounting plate.
[0012] Preferably, the length of the upper mounting plate is less than the length of the lower mounting plate.
[0013] This utility model has the following beneficial effects:
[0014] In this invention, the liquid ammonia pump body is mounted on the upper mounting plate by bolts. Four rubber pads are placed between the upper and lower mounting plates, and the four rubber pads are snapped into the four No. 2 slots at the lower end of the upper mounting plate and the four No. 1 slots at the upper end of the lower mounting plate. Then, the four threaded rods at the upper end of the lower mounting plate are inserted into the upper mounting plate, and the lower and upper mounting plates are fixed by nuts. Under the action of the four rubber pads, the vibration of the liquid ammonia pump body is reduced, thereby improving the service life of the liquid ammonia pump body. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the shock absorption mechanism of a liquid ammonia pump according to the present invention;
[0016] Figure 2 This is a schematic diagram of the overall structure of the upper mounting plate of the shock absorption mechanism of a liquid ammonia pump according to this utility model;
[0017] Figure 3 This is a schematic diagram of the overall structure of the lower mounting plate of the shock absorption mechanism for a liquid ammonia pump according to this utility model.
[0018] Figure 4 This is a schematic diagram of the overall structure of the rubber pad of the shock absorption mechanism of a liquid ammonia pump according to this utility model.
[0019] In the diagram: 1. Liquid ammonia pump body; 2. Lower mounting plate; 3. L-shaped support; 4. Upper mounting plate; 5. Rubber pad; 21. Nut; 22. Side wing; 23. Threaded rod; 24. No. 1 slot; 25. No. 1 mounting hole; 41. Connecting hole; 42. No. 2 mounting hole; 43. No. 3 mounting hole; 44. No. 2 slot; 51. Upper protrusion; 52. Anti-slip groove; 53. Through hole; 54. Lower protrusion. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Please see Figure 1-4 This utility model provides a technical solution:
[0024] A shock-absorbing mechanism for a liquid ammonia pump includes a liquid ammonia pump body 1. Several L-shaped support legs 3 are fixedly connected to the lower end of the liquid ammonia pump body 1. Several L-shaped support legs 3 are movably connected to an upper mounting plate 4 by bolts. A lower mounting plate 2 is movably connected to the lower end of the upper mounting plate 4. Four rubber pads 5 are provided between the lower mounting plate 2 and the upper mounting plate 4.
[0025] In this embodiment, each of the four rubber pads 5 has an upper protrusion 51 fixedly connected to its upper end, and each of the four rubber pads 5 has a lower protrusion 54 fixedly connected to its lower end. The four upper protrusions 51 are narrower at the top and wider at the bottom, and the four lower protrusions 54 are wider at the top and narrower at the bottom. Several anti-slip grooves 52 are formed on the outer surfaces of both the four lower protrusions 54 and the four upper protrusions 51. Each of the four upper protrusions 51 and the four rubber pads 5 has a through hole 53 extending vertically. The lower mounting plate 2 has a front end... The lower mounting plate 2 has two threaded rods 23 fixedly connected to both the upper and lower rear parts. Nuts 21 are threadedly connected to the outer surfaces of the four threaded rods 23. Side wings 22 are fixedly connected to the left and right outer surfaces of the four nuts 21. Two No. 1 mounting holes 25 are opened on the upper left and upper right sides of the lower mounting plate 2. Four No. 1 slots 24 are opened in the middle of the upper end of the lower mounting plate 2. The four No. 1 slots 24 are all of the upper-wide and lower-narrow structure, and the four No. 1 slots 24 are respectively adapted to the four lower protrusions 54.
[0026] The above scheme involves placing four rubber pads 5 between the upper mounting plate 4 and the lower mounting plate 2. Through the cooperation of four nuts 21 and four threaded rods 23, the lower mounting plate 2 and the upper mounting plate 4 clamp the four rubber pads 5. Under the action of the four rubber pads 5, the liquid ammonia pump body 1 can be vibration damped.
[0027] In this embodiment, the upper mounting plate 4 has four connecting holes 41 at its four corners, four No. 2 mounting holes 42 and four No. 3 mounting holes 43 at its upper end, and four No. 2 slots 44 at the middle of its lower end. All four No. 2 slots 44 are narrower at the top and wider at the bottom. The four threaded rods 23 are respectively inserted and movably connected to the four connecting holes 41, and the four nuts 21 are all located on the upper part of the upper mounting plate 4. The length of the upper mounting plate 4 is less than the length of the lower mounting plate 2.
[0028] It should be noted that this utility model describes a vibration damping mechanism for a liquid ammonia pump. First, the liquid ammonia pump body 1 is securely installed on the upper mounting plate 4 using fastening bolts. Then, four rubber pads 5 are placed between the upper mounting plate 4 and the lower mounting plate 2. These rubber pads 5 are embedded in the second slot 44 at the lower end of the upper mounting plate 4 and the first slot 24 at the upper end of the lower mounting plate 2, thus limiting the position of the four rubber pads 5. Next, the four threaded rods 23 pre-installed on the lower mounting plate 2 are precisely aligned and inserted into the corresponding holes in the upper mounting plate 4, and then tightened using nuts 21 to ensure a firm connection between the upper and lower mounting plates. During this process, the four rubber pads 5, as key vibration damping elements, effectively absorb and disperse the vibrations received by the liquid ammonia pump body 1, reducing the impact on the pump body itself. This not only enhances the overall structural stability of the liquid ammonia pump but also greatly improves the operational stability of the liquid ammonia pump body 1, thereby effectively extending its service life and ensuring the efficient and safe operation of the equipment.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A shock-absorbing mechanism for a liquid ammonia pump, comprising a liquid ammonia pump body (1), characterized in that: The liquid ammonia pump body (1) has several L-shaped support legs (3) fixedly connected to its lower end. The several L-shaped support legs (3) are movably connected to an upper mounting plate (4) by bolts. The lower end of the upper mounting plate (4) is movably connected to a lower mounting plate (2). Four rubber pads (5) are provided between the lower mounting plate (2) and the upper mounting plate (4). Each of the four rubber pads (5) has an upper protrusion (51) fixedly connected to its upper end, and a lower protrusion (54) fixedly connected to its lower end. Each of the four upper protrusions (51) has a structure that is narrow at the top and wide at the bottom, and each of the four lower protrusions (54) has a structure that is wide at the top and narrow at the bottom. Several anti-slip grooves (52) are opened on the outer surface of each of the four lower protrusions (54) and the outer surface of each of the four upper protrusions (51). Each of the four upper protrusions (51) and the four rubber pads (5) has a through hole (53) that passes through from top to bottom.
2. The shock absorption mechanism for a liquid ammonia pump according to claim 1, characterized in that: The lower mounting plate (2) has two threaded rods (23) fixedly connected to the front and rear of the upper end. Nuts (21) are threadedly connected to the outer surfaces of the four threaded rods (23). Side wings (22) are fixedly connected to the left and right outer surfaces of the four nuts (21). Two No. 1 mounting holes (25) are opened on the left and right upper ends of the lower mounting plate (2). Four No. 1 slots (24) are opened in the middle of the upper end of the lower mounting plate (2).
3. The shock absorption mechanism for a liquid ammonia pump according to claim 2, characterized in that: All four card slots (24) are wide at the top and narrow at the bottom, and each of the four card slots (24) is adapted to one of the four lower protrusions (54).
4. The shock absorption mechanism for a liquid ammonia pump according to claim 1, characterized in that: The upper mounting plate (4) has four connecting holes (41) at its four corners. The upper mounting plate (4) has four No. 2 mounting holes (42) and four No. 3 mounting holes (43) at its upper end. The upper mounting plate (4) has four No. 2 slots (44) in the middle of its lower end. All four No. 2 slots (44) have a structure that is narrower at the top and wider at the bottom.
5. The shock absorption mechanism for a liquid ammonia pump according to claim 2, characterized in that: The four threaded rods (23) are respectively inserted and movably connected to the four connecting holes (41), and the four nuts (21) are all located on the upper part of the upper mounting plate (4).
6. The shock absorption mechanism for a liquid ammonia pump according to claim 1, characterized in that: The length of the upper mounting plate (4) is less than the length of the lower mounting plate (2).