CN221762515U - Vibration reduction mechanism for vacuum exhaust table pump machine - Google Patents

Abstract

The application relates to the technical field of vacuum exhaust tables, in particular to a vibration reduction mechanism for a vacuum exhaust table pump, which is arranged at the bottom of the pump and comprises a base, a counterweight seat, a guide rod, a linear bearing and a roller, wherein the base is arranged on the table top of the vacuum exhaust table, the base is in a U-shaped structure, the counterweight seat is connected to the bottom of the pump, the guide rod is connected to the base, the guide rod is arranged along the length direction of the base, one guide rod is symmetrically arranged at two sides of the axis of the length direction of the base, the counterweight seat is provided with a mounting hole for the guide rod to pass through, the linear bearing is connected in the mounting hole, the guide rod is arranged in the linear bearing in a penetrating way, the roller is connected to the counterweight seat, one roller is arranged at each of four corners of the bottom of the counterweight seat, the roller rolls on the base, and a vibration damping component is further arranged between the base and the counterweight seat. The application has the effects of improving the problem of influencing the vibration of the whole vacuum exhaust table due to the vibration of the pump body and reducing the fault risk of equipment.

Description

A vibration reduction mechanism for a vacuum exhaust table pump

Technical Field

The utility model relates to the field of vacuum exhaust table technology, in particular to a vibration reduction mechanism for a vacuum exhaust table pump.

Background Art

The vacuum exhaust table is a device specially used to evacuate sealed containers (tubular vacuum furnaces, vacuum boxes, neon lamps). The pump body can make the vacuum degree inside the vacuum container reach between 10-2 Pa and 10-5 Pa in a short time. It is widely used in aerospace, coating, solar energy and other fields.

However, the pump body will generate large vibrations when working, and this vibration will be transmitted to other equipment on the vacuum exhaust table, causing the entire vacuum exhaust table to be affected by vibration, greatly increasing the risk of failure.

Utility Model Content

In order to improve the problem that the vibration of the entire vacuum exhaust table is affected by the vibration of the pump body and reduce the risk of equipment failure, the present application provides a vibration reduction mechanism for a vacuum exhaust table pump.

The present application provides a vibration reduction mechanism for a vacuum exhaust table pump machine using the following technical solution:

A vibration reduction mechanism for a vacuum exhaust table pump is arranged at the bottom of the pump, including a vibration reduction mechanism, the vibration reduction mechanism including a base, a counterweight seat, a guide rod, a linear bearing and a roller. The base is placed on the surface of the vacuum exhaust table, and the base is arranged in a "凵" shape. The counterweight seat is connected to the bottom of the pump, and the guide rod is connected to the base. The guide rod is arranged along the length direction of the base, and the guide rod is symmetrically provided on both sides of the axis of the length direction of the base. The counterweight seat is provided with a mounting hole for the guide rod to pass through, the linear bearing is connected to the mounting hole, and the guide rod is passed through the linear bearing. The roller is connected to the counterweight seat, and the roller is respectively provided at the four corners of the bottom of the counterweight seat. The roller rolls on the base, and a shock-absorbing component for buffering vibration is also provided between the base and the counterweight seat.

Preferably, the shock absorbing assembly is respectively provided with one on two opposite sides of the counterweight seat, and the shock absorbing assembly includes a mounting tube, a sealing cover, a piston rod, a slider and a buffer spring. The mounting tube is located between the two guide rods and is arranged in a direction parallel to the guide rod. The sealing cover is connected to the tube mouth of the mounting tube, the piston rod passes through the sealing cover and is arranged in the mounting tube. The axis of the piston rod is arranged in a colinear manner with the axis of the mounting tube. The slider is fixedly connected to the end of the piston rod located in the mounting tube. The side wall of the slider is slidably fitted to the inner wall of the mounting tube. The mounting tube is filled with damping oil, and a damping oil supply is provided on the slider. The through holes pass through the slider, and a plurality of through holes are evenly arranged along the circumference of the piston rod. The two ends of the mounting cylinder and the piston rod opposite to each other are respectively connected with the first spring seat and the second spring seat. The buffer spring is sleeved on the outside of the mounting cylinder and the piston rod, and the two ends of the buffer spring are respectively connected to the first spring seat and the second spring seat. The two ends of the mounting cylinder and the piston rod opposite to each other are respectively connected with the first connecting flange and the second connecting flange. The first spring seat and the second spring seat are located between the first connecting flange and the second connecting flange. The first connecting flange is connected to the base, and the second connecting flange is connected to the counterweight seat.

Preferably, a limiting telescopic rod is connected between the first connecting flange and the second connecting flange, the limiting telescopic rod is arranged in a direction parallel to the piston rod, the limiting telescopic rod is attached to the outside of the buffer spring, and a plurality of limiting telescopic rods are evenly arranged along the circumference of the piston rod.

Preferably, a shock-absorbing pad is provided at the bottom of the base, and the shock-absorbing pad is laid on the bottom surface of the base.

Preferably, the contact surface between the base and the roller is a smooth plane.

Preferably, the roller is a shock-absorbing roller.

In summary, this application includes the following beneficial technical effects:

The utility model provides a vibration reduction mechanism for a vacuum exhaust table pump. By setting a base, a counterweight seat, a guide rod, a linear bearing, a roller and a shock-absorbing assembly, on the one hand, the counterweight seat is used to improve the overall quality of the pump, so that the pump requires more energy when vibrating, thereby improving the vibration reduction of the pump itself. On the other hand, the guide rod is used to convert the vibration generated by the pump into lateral movement of the counterweight seat, thereby reducing the vibration amplitude of the pump. When the counterweight seat undergoes lateral displacement, the shock-absorbing assembly can buffer it, and with the cooperation of the linear bearing and the roller, the friction between the counterweight seat and the guide rod and the base as a whole during the movement is reduced, thereby reducing the transmission effect of the vibration of the pump on the base, and further reducing the transmission effect of the vibration of the pump on the surface of the vacuum exhaust table, thereby achieving the effect of improving the problem of the vibration of the entire vacuum exhaust table affected by the vibration of the pump body and reducing the risk of equipment failure.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a vibration reduction mechanism for a vacuum exhaust station pump in an embodiment of the present application;

FIG2 is a front view of a vibration reduction mechanism for a vacuum exhaust table pump machine in an embodiment of the present application;

FIG3 is a schematic diagram of a shock absorbing component in an embodiment of the present application;

FIG. 4 is a schematic diagram for illustrating the internal structure of the installation tube in an embodiment of the present application.

Explanation of the reference numerals in the accompanying drawings: 1. Pump; 2. Vibration reduction mechanism; 21. Base; 22. Counterweight seat; 23. Guide rod; 24. Linear bearing; 25. Roller; 3. Shock-absorbing assembly; 31. Mounting cylinder; 311. First spring seat; 312. First connecting flange; 32. Sealing cover; 33. Piston rod; 331. Second spring seat; 332. Second connecting flange; 34. Slider; 341. Through hole; 35. Buffer spring; 4. Limiting telescopic rod; 5. Shock-absorbing pad.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the scheme of the utility model, the scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiment is only an embodiment of a part of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two original components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The embodiment of the present application discloses a vibration reduction mechanism for a vacuum exhaust table pump. Referring to Figures 1, 2, 3 and 4, the vibration reduction mechanism for the vacuum exhaust table pump is arranged at the bottom of the pump 1, including a vibration reduction mechanism 2, the vibration reduction mechanism 2 includes a base 21, a counterweight seat 22, a guide rod 23, a linear bearing 24 and a roller 25, the base 21 is placed on the table top of the vacuum exhaust table, the base 21 is arranged in a "凵" shape, the counterweight seat 22 is connected to the bottom of the pump 1, the guide rod 23 is connected to the base 21, the guide rod 23 is arranged along the length direction of the base 21, the guide rod 23 is symmetrically provided on both sides of the axis of the length direction of the base 21, the counterweight seat 22 is provided with a mounting hole for the guide rod 23 to pass through, the linear bearing 24 is connected to the mounting hole, the guide rod 23 is penetrated in the linear bearing 24, the roller 25 is connected to the counterweight seat 22, and the roller 25 is respectively provided at the four corners of the bottom of the counterweight seat 22. One, the roller 25 rolls on the base 21, and a shock-absorbing component 3 for buffering vibration is also provided between the base 21 and the counterweight seat 22. During operation, on the one hand, the overall mass of the pump 1 is improved by the counterweight seat 22, so that the pump 1 requires more energy when vibrating, thereby improving the vibration reduction of the pump 1 itself. On the other hand, the vibration generated by the pump 1 is converted into lateral movement of the counterweight seat 22 through the guide rod 23, thereby reducing the vibration amplitude of the pump 1. When the counterweight seat 22 undergoes lateral displacement, the shock-absorbing component 3 can buffer it, and with the cooperation of the linear bearing 24 and the roller 25, the friction between the counterweight seat 22 and the guide rod 23 and the base 21 as a whole during the movement is reduced, thereby reducing the transmission effect of the vibration of the pump 1 on the base 21, and further reducing the transmission effect of the vibration of the pump 1 on the surface of the vacuum exhaust table.

Among them, the contact surface between the base 21 and the roller 25 is a smooth plane, which ensures that the friction between the roller 25 and the base 21 is small, which is beneficial to reducing the conduction effect of the pump 1 on the vacuum exhaust table surface, and the roller 25 is a shock-absorbing roller 25, which is beneficial to further reduce the vibration caused by the pump 1.

The damping assembly 3 is respectively provided with one on the two opposite sides of the counterweight seat 22, and the damping assembly 3 includes a mounting tube 31, a sealing cover 32, a piston rod 33, a slider 34 and a buffer spring 35. The mounting tube 31 is located between the two guide rods 23 and is arranged in a direction parallel to the guide rod 23. The sealing cover 32 is connected to the tube mouth of the mounting tube 31, and the piston rod 33 passes through the sealing cover 32 and is arranged in the mounting tube 31. The axis of the piston rod 33 is arranged in a colinear manner with the axis of the mounting tube 31. The slider 34 is fixedly connected to the end of the piston rod 33 located in the mounting tube 31, and the side wall of the slider 34 slides and fits the inner wall of the mounting tube 31. The mounting tube 31 is filled with damping oil. The slider 34 is provided with a through hole 341 for the damping oil to pass through. A plurality of through holes 341 are evenly arranged on the slider 34 along the circumference of the piston rod 33. The mounting tube 31 and the piston rod 33 are respectively connected at opposite ends with a first spring seat 311 and a second spring seat 331. The impact spring 35 is sleeved on the outside of the mounting cylinder 31 and the piston rod 33, and the two ends of the buffer spring 35 are respectively connected to the first spring seat 311 and the second spring seat 331, and the two opposite ends of the mounting cylinder 31 and the piston rod 33 are respectively connected with the first connecting flange 312 and the second connecting flange 332, and the first spring seat 311 and the second spring seat 331 are located between the first connecting flange 312 and the second connecting flange 332, and the first connecting flange 312 is connected to the base 21, and the second connecting flange 332 is connected to the counterweight seat 22. When the counterweight seat 22 moves left and right, on the one hand, the buffer spring 35 will undergo elastic deformation, and the generated elastic force can buffer the vibration. On the other hand, the piston rod 33 will perform piston motion in the mounting cylinder 31 under the action of vibration. In this process, the damping oil passes through the through hole 341 on the slider 34 and moves from one side of the slider 34 to the other side, and the generated resistance has a shock-absorbing effect on the vibration.

A limiting telescopic rod 4 is connected between the first connecting flange 312 and the second connecting flange 332. The limiting telescopic rod 4 is arranged in a direction parallel to the piston rod 33. The limiting telescopic rod 4 is attached to the outside of the buffer spring 35. Several limiting telescopic rods 4 are evenly arranged along the circumference of the piston rod 33. Such an arrangement reduces the vibration of the buffer spring 35 during the deformation process, which is further beneficial to improving the stability of the device.

A shock-absorbing pad 5 is provided at the bottom of the base 21 and laid on the bottom surface of the base 21. The shock-absorbing pad 5 further reduces the transmission effect of the vibration of the pump machine 1 on the vacuum exhaust table surface, thereby playing a shock-absorbing role.

Finally, it should be noted that the above is only the preferred implementation of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (6)

1. The utility model provides a vacuum exhaust platform damping mechanism for pump machine, sets up in pump machine (1) bottom, its characterized in that: including damping mechanism (2), damping mechanism (2) include base (21), counter weight seat (22), guide bar (23), linear bearing (24) and gyro wheel (25), base (21) are placed on the vacuum exhaust platform mesa, base (21) are "U" type setting, counter weight seat (22) are connected in pump (1) bottom, guide bar (23) are connected on base (21), guide bar (23) are along the length direction setting of base (21), guide bar (23) are equipped with one in the both sides of base (21) length direction axis symmetry respectively, the mounting hole that supplies guide bar (23) to pass has been seted up on counter weight seat (22), linear bearing (24) are connected in the mounting hole, in linear bearing (24) are worn to locate by guide bar (23), gyro wheel (25) are connected on counter weight seat (22), four bight punishment of gyro wheel (25) bottom are equipped with one in counter weight seat (22), gyro wheel (25) are equipped with one in counter weight seat (21) and buffering vibration subassembly (3) respectively.

2. The vibration reduction mechanism for a vacuum exhaust table pump machine according to claim 1, wherein: the damping component (3) is respectively arranged at two opposite sides of the counterweight base (22), the damping component (3) comprises a mounting cylinder (31), a sealing cover (32), a piston rod (33), a sliding block (34) and a damping spring (35), the mounting cylinder (31) is arranged between two guide rods (23) and is arranged along the direction parallel to the guide rods (23), the sealing cover (32) is connected at the cylinder mouth of the mounting cylinder (31), the piston rod (33) passes through the sealing cover (32) to be arranged in the mounting cylinder (31), the axis of the piston rod (33) and the axis of the mounting cylinder (31) are arranged in a collinear manner, the sliding block (34) is fixedly connected with the end part of the piston rod (33) positioned in the mounting cylinder (31), the side wall of the sliding block (34) is in sliding fit with the inner wall of the mounting cylinder (31), the mounting cylinder (31) is internally filled with damping oil, through holes (341) for the damping oil to pass through are formed in the sliding block (34), the through holes (341) are uniformly distributed on the sliding block (34) along the circumferential direction of the sliding block (33) at the first spring seat (31) and the second spring seat (331) are respectively connected with the second spring seat (31), the buffer spring (35) is sleeved outside the mounting cylinder (31) and the piston rod (33), two ends of the buffer spring (35) are respectively connected to the first spring seat (311) and the second spring seat (331), two opposite ends of the mounting cylinder (31) and the piston rod (33) are respectively connected with the first connecting flange (312) and the second connecting flange (332), the first spring seat (311) and the second spring seat (331) are located between the first connecting flange (312) and the second connecting flange (332), the first connecting flange (312) is connected to the base (21), and the second connecting flange (332) is connected to the counterweight base (22).

3. The vibration reduction mechanism for a vacuum exhaust table pump machine according to claim 2, wherein: the novel piston rod is characterized in that a limiting telescopic rod (4) is connected between the first connecting flange (312) and the second connecting flange (332), the limiting telescopic rod (4) is arranged along the direction parallel to the piston rod (33), the limiting telescopic rod (4) is attached to the outside of the buffer spring (35), and the limiting telescopic rod (4) is uniformly distributed in a plurality of directions along the circumference of the piston rod (33).

4. The vibration reduction mechanism for a vacuum exhaust table pump machine according to claim 1, wherein: the bottom of the base (21) is provided with a shock pad (5), and the shock pad (5) is paved on the bottom surface of the base (21).

5. The vibration reduction mechanism for a vacuum exhaust table pump machine according to claim 1, wherein: the contact surface of the base (21) and the roller (25) is a smooth plane.

6. The vibration reduction mechanism for a vacuum exhaust table pump machine according to claim 1, wherein: the roller (25) is a damping roller (25).