Machine base with damping mechanism

Abstract

The utility model relates to the technical field of traction machines, in particular to a machine base provided with a damping mechanism, which comprises a supporting frame, a supporting table is connected to the inner wall of the supporting frame in a sliding mode, the top of the supporting table is connected with a traction machine, and a buffering assembly is arranged to support the supporting table. When the traction machine works, the impact force generated by the load can be transmitted to the supporting table connected with the traction machine, when the supporting table sinks, the piston disc connected with the sliding rod sinks, the potential energy of the impact is released through the sinking action, and when the piston disc sinks, hydraulic oil in the supporting cylinder is squeezed into the energy releasing groove from the liquid discharging hole, so that the traction machine can work stably. Due to the fact that the hole diameter of the liquid drainage hole needs a certain time to limit flowing of hydraulic oil, when the piston disc sinks, potential energy is released, certain resistance can be generated in the sinking process to consume the potential energy, the primary buffering effect is achieved, the influence of impact on equipment is reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of traction machines, in particular to a machine base provided with a shock absorption mechanism. Background Technique

[0002] A traction machine, also known as an elevator main engine, is the power equipment of an elevator, which consists of a motor, a brake, a coupling, a speed reducer, a traction wheel, a machine frame, a guide wheel, an attached handwheel for turning the drive by hand, etc. Its function is to transmit and transfer power to make the elevator run. Before tightening the bolts at the joint between the traction machine base and the installation plane, a feeler gauge must be used to check for gaps. If there are gaps, they should be filled with gaskets. Any form of gap will affect the operation function of the traction machine or the elevator. During the process of the traction machine dragging the elevator, the force generated by the repeated dragging of the elevator car by the traction machine traction rope greatly affects the operation of the traction machine. Therefore, the design of the buffer device is particularly important for the stability of the traction machine.

[0003] The prior art such as the published patent No. CN213834164U provides a buffer mechanism for strengthening the base of an elevator traction machine, including a base. A shock absorption mechanism is provided at the bottom of the base. A protective box is hinged to the side wall of the base. Locking mechanisms are provided on both sides of the traction machine base. A traction machine is connected to the top of the traction machine base. A pair of fixing frames are hinged on both sides of the traction machine base at the top of the base. Positioning holes are provided on the upper surface of the fixing frame and the top of the traction machine base. The utility model relates to the technical field of elevator traction machines. The structure of the device is compact. A buffer device is provided at the bottom of the device, which can ensure that the whole device still has great stability when subjected to a large load. The device is also provided with a protective box, which can protect the traction machine. The device is also provided with a locking mechanism, which makes the fixing effect of the whole device and the base better. At the same time, the locking mechanism is simple to disassemble, and the traction machine can be taken out quickly, which is convenient to use.

[0004] In this scheme, when the device is subjected to a large load, the piston rod pushes the piston to move downward, and the hydraulic oil enters above the piston through an oil passage with a smaller aperture for buffering, reducing the impact. However, in actual use, such as when a sudden huge load occurs, due to the smaller aperture, the flow rate of the hydraulic oil is slow, and the impact force at the beginning of the load is large. At this time, the smaller aperture cannot make the hydraulic oil pass quickly, resulting in an excessive impact on the overall device, which is not conducive to the service life of the device. In view of this, we propose a machine base provided with a shock absorption mechanism. Content of the Utility Model

[0005] The purpose of the utility model is to provide a machine base provided with a shock absorption mechanism, which solves the problem that the impact force at the beginning of the load is large, and at this time, the smaller aperture cannot make the hydraulic oil pass quickly, resulting in an excessive impact on the overall device, which is not conducive to the service life of the device.

[0006] To achieve the above object, the present utility model provides the following technical solutions:

[0007] A base provided with a shock-absorbing mechanism, comprising a support frame, wherein a support table is slidably connected to the inner wall of the support frame, a traction machine is connected to the top of the support table, and buffer components are arranged below the four corners of the support table;

[0008] The buffer component includes a support cylinder, a piston disk is slidably connected to the inner wall of the support cylinder, a return spring is connected between the inner wall of the support cylinder and the piston disk, a sealing cover is connected to the top of the support cylinder, a sliding rod is connected to the top of the piston disk, the sliding rod penetrates through the sealing cover and is slidably connected, and the top of the sliding rod is connected to the support table through a connection disk. An energy release groove is opened below the interior of the support cylinder, a piston ring is slidably connected to the inner wall of the energy release groove, and liquid discharge holes are opened on the inner wall of the support cylinder.

[0009] Preferably, the number of the liquid discharge holes is six and they are evenly distributed, and the piston ring is provided with inclined surfaces corresponding to the positions of the liquid discharge holes.

[0010] Preferably, limiting grooves are opened on both sides of the support table, limiting blocks are respectively fixedly connected to both sides of the top of the support frame, and the limiting blocks are slidably connected to the inner walls of the limiting grooves.

[0011] Preferably, a flow channel is opened above the energy release groove of the support cylinder, the flow channel extends above the support cylinder, and the interior of the support cylinder is communicated.

[0012] Preferably, the number of the flow channels is three and they are evenly distributed, and communication holes are opened in the piston ring corresponding to the positions of the flow channels.

[0013] Preferably, an annular air chamber is opened above the energy release groove, and an extrusion ring is connected to the top of the piston ring corresponding to the position of the annular air chamber.

[0014] Preferably, one-way valves are connected to both sides of the inner wall of the piston disk, and the flowing direction of the one-way valves is from top to bottom.

[0015] By means of the above technical solutions, the present utility model provides a base provided with a shock-absorbing mechanism. At least the following beneficial effects are achieved:

[0016] 1. The utility model provides support for the support platform by setting a buffer assembly. When the traction machine is subjected to a large load, the impact force generated by the load will be transmitted to the support platform connected to the traction machine. When the support platform sinks, the piston disk connected to the sliding rod also sinks, releasing the potential energy of the impact through the sinking action, and buffering through the tension of the reset spring arranged inside the support cylinder. When the piston disk sinks, the hydraulic oil inside the support cylinder is squeezed into the energy release groove from the liquid discharge hole. Due to the aperture of the liquid discharge hole restricting the flow of the hydraulic oil, it takes a certain amount of time for the hydraulic oil to flow, so that when the piston disk sinks, while releasing potential energy, it can also generate a certain resistance during the sinking process to consume the potential energy, playing a role in primary buffering, reducing the impact on the equipment, and improving the service life of the equipment.

[0017] 2. The hydraulic oil that enters the energy release groove of the utility model will squeeze the piston ring to rise. By arranging a flow channel above the energy release groove, when the energy release groove is filled with hydraulic oil, the hydraulic oil will flow from the flow channel to the position above the piston disk inside the support cylinder, enabling the piston disk to continue to sink, ensuring that the piston disk has sufficient moving space to generate displacement during buffering. Since the aperture of the flow channel is smaller than that of the liquid discharge hole, the resistance suffered by the hydraulic oil during flow at this time will be greater, and the impact suffered is secondarily energy-released in this way until it is completely consumed, thus ensuring the stability of the equipment and preventing the situation where the equipment load is too large due to excessive impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the utility model and form a part of this application:

[0019] Figure 1 It is an overall appearance display diagram of the utility model;

[0020] Figure 2 It is a partial cross-sectional view of the buffer assembly in the utility model;

[0021] Figure 3 In the utility model Figure 2 is an enlarged view of part A;

[0022] Figure 4 It is a structural schematic diagram of the piston ring in the utility model.

[0023] In the figure: 1, support frame; 2, support platform; 21, limit groove; 22, limit block; 3, traction machine; 4, buffer assembly; 41, support cylinder; 411, reset spring; 42, piston disk; 421, sliding rod; 422, connecting disk; 423, one-way valve; 43, sealing cover; 44, liquid discharge hole; 45, flow channel; 46, energy release groove; 47, piston ring; 4701, inclined surface; 471, communication hole; 472, annular air chamber; 473, extrusion ring. DETAILED DESCRIPTION OF THE INVENTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1

[0026] A machine base provided with a shock absorption mechanism, as Figures 1-4 shown, includes a support frame 1. A support platform 2 is slidably connected to the inner wall of the support frame 1. A traction machine 3 is connected to the top of the support platform 2. Below the four corners of the support platform 2, a buffer assembly 4 is provided. The buffer assembly 4 includes a support cylinder 41. A piston disc 42 is slidably connected to the inner wall of the support cylinder 41. A return spring 411 is connected between the inner wall of the support cylinder 41 and the piston disc 42. The piston disc 42 can be pushed up for reset by the tension of the return spring 411. A sealing cover 43 is connected to the top of the support cylinder 41. A sliding rod 421 is connected to the top of the piston disc 42. The sliding rod 421 penetrates through the sealing cover 43 and is slidably connected, and the top of the sliding rod 421 is connected to the support platform 2 through a connecting disc 422. An energy release groove 46 is opened below the interior of the support cylinder 41. A piston ring 47 is slidably connected to the inner wall of the energy release groove 46. A drain hole 44 is opened on the inner wall of the support cylinder 41.

[0027] In this embodiment, by setting the buffer assembly 4 to provide support for the support platform 2, when the traction machine 3 is subjected to a large load, the impact force generated by the load will be transmitted to the support platform 2 connected to the traction machine 3. When the support platform 2 sinks, the piston disc 42 connected to the sliding rod 421 sinks, releasing the potential energy of the impact through the sinking action, and buffering through the tension of the return spring 411 provided inside the support cylinder 41. And when the piston disc 42 sinks, the hydraulic oil inside the support cylinder 41 is squeezed into the energy release groove 46 through the drain hole 44. Due to the aperture limitation of the drain hole 44, it takes a certain time for the hydraulic oil to flow, so that when the piston disc 42 sinks, while releasing potential energy, a certain resistance can also be generated during the sinking process to consume the potential energy, so as to play a primary buffering role, reduce the impact on the equipment, and improve the service life of the equipment.

[0028] Embodiment 2

[0029] As Figure 2 shown, on the basis of Embodiment 1, preferably, the number of drain holes 44 is six and they are evenly distributed, and the piston ring 47 is provided with an inclined surface 4701 corresponding to the position of the drain holes 44.

[0030] In this embodiment, by providing multiple drain holes 44, the flow rate of the hydraulic oil can be increased, avoiding the problem that when the impact force is too large, the hydraulic oil cannot be discharged quickly enough due to its slow flow rate, resulting in poor buffering effect.

[0031] Embodiment 3

[0032] As Figure 1 shown, on the basis of Embodiment 1, preferably, limiting grooves 21 are provided on both sides of the support platform 2, limiting blocks 22 are respectively fixedly connected to both sides of the top of the support frame 1, and the limiting blocks 22 are slidably connected to the inner walls of the limiting grooves 21.

[0033] In this embodiment, relative limitation is carried out by setting the connection relationship between the limiting blocks 22 and the limiting grooves 21, so that the support platform 2 can only displace in the up and down space.

[0034] Embodiment 4

[0035] As Figure 2 、 Figure 3 、 Figure 4 shown, on the basis of Embodiment 1, preferably, a flow channel 45 is provided above the energy release groove 46 of the support cylinder 41, the flow channel 45 extends above the support cylinder 41 and is communicated with the inside of the support cylinder 41. The hydraulic oil entering the energy release groove 46 will squeeze the piston ring 47 to rise, and by providing a flow channel 45 above the energy release groove 46, when the energy release groove 46 is filled with hydraulic oil, the hydraulic oil will flow from the flow channel 45 to the position above the piston disc 42 inside the support cylinder 41, so that the piston disc 42 can continue to sink to ensure that the piston disc 42 has enough moving space to generate displacement during buffering. The number of flow channels 45 is three and they are evenly distributed. Communication holes 471 are provided at the positions of the piston ring 47 corresponding to the flow channels 45. Since the aperture of the flow channel 45 is smaller than that of the drain hole 44, the resistance suffered by the hydraulic oil during flow will be greater. In this way, the impact suffered is secondarily energy-released until it is completely consumed, so as to ensure the stability of the equipment and at the same time prevent the situation that the equipment load is too large due to excessive impact. An annular air chamber 472 is provided above the energy release groove 46, and an extrusion ring 473 is connected to the top of the piston ring 47 corresponding to the annular air chamber 472. By setting the annular air chamber 472 to be slidably connected to the extrusion ring 473, when the extrusion ring 473 is lifted, it needs to compress air to allow the hydraulic oil to flow in, increasing the resistance during the initial buffering, and the resistance is a gradually increasing process.

[0036] In this embodiment, the hydraulic oil entering the energy release groove 46 will squeeze the piston ring 47 to rise. By providing a flow channel 45 above the energy release groove 46, when the energy release groove 46 is filled with hydraulic oil, the hydraulic oil will flow from the flow channel 45 to the position above the piston disc 42 inside the support cylinder 41, enabling the piston disc 42 to continue to sink to ensure that the piston disc 42 has sufficient moving space to generate displacement during buffering. Since the aperture of the flow channel 45 is smaller than that of the drain hole 44, the resistance suffered by the hydraulic oil during flow at this time will be greater, and the impact suffered is secondarily energy-released in this way until it is completely consumed, thereby ensuring the stability of the equipment and preventing the situation of excessive impact causing excessive load on the equipment.

[0037] Embodiment 5

[0038] As Figure 2 shown, on the basis of Embodiment 1, preferably, two sides of the inner wall of the piston disc 42 are connected with one-way valves 423, and the flow direction of the one-way valves 423 is from top to bottom.

[0039] In this embodiment, by providing the one-way valves 423, when the tension of the return spring 411 pushes the piston disc 42 to reset, the hydraulic oil can directly flow back to the lower part of the piston disc 42 through the one-way valves 423, reducing the time required for reset.

[0040] When a machine base provided with a shock absorbing mechanism of the utility model is in use, when the traction machine 3 is subjected to a large load, the impact force generated by the load will be transmitted to the support platform 2 connected to the traction machine 3. When the support platform 2 sinks, the piston plate 42 connected to the slide rod 421 sinks, and the potential energy of the impact is released through the sinking action, and the tension of the return spring 411 arranged inside the support cylinder 41 is used for buffering. When the piston plate 42 sinks, the hydraulic oil inside the support cylinder 41 is squeezed from the drainage hole 44 into the energy release groove 46. Since the aperture of the drainage hole 44 limits the flow of hydraulic oil, it takes a certain amount of time, so that when the piston plate 42 sinks, while releasing the potential energy, it can also generate a certain resistance in the sinking process to consume the potential energy, so as to play the role of initial buffering. By setting multiple drainage holes 44, the flow rate of the hydraulic oil can be accelerated, so as to avoid the problem that when the impact force is too large, the hydraulic oil cannot be discharged as soon as possible due to the slow flow rate, resulting in poor buffering effect. In addition, due to the setting The annular air chamber 472 is slidably connected to the extrusion ring 473, so that when the extrusion ring 473 is lifted, compressed air is needed to allow the hydraulic oil to flow in, thereby increasing the resistance during the initial buffering, and the resistance is a gradually increasing process, so as to reduce the sense of frustration during sinking. The hydraulic oil entering the energy release groove 46 will squeeze the piston ring 47 to rise, and by opening a flow channel 45 above the energy release groove 46, when the energy release groove 46 is filled with hydraulic oil, the hydraulic oil will flow from the flow channel 45 to the position above the piston disc 42 inside the support cylinder 41, so that the piston disc 42 can continue to sink, so as to ensure that the piston disc 42 has enough moving space to produce displacement during buffering. Since the aperture of the flow channel 45 is smaller than the drainage hole 44, the resistance encountered by the hydraulic oil during flow will be greater at this time, so as to release the impact for the second time until it is completely consumed, thereby ensuring the stability of the equipment while preventing the impact from being too large and causing excessive load on the equipment.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A base provided with a shock-absorbing mechanism, comprising a support frame (1), characterized in that: A support platform (2) is slidably connected to the inner wall of the support frame (1). A traction machine (3) is connected to the top of the support platform (2). Buffer components (4) are arranged below the four corners of the support platform (2). The buffer component (4) includes a support cylinder (41). A piston disc (42) is slidably connected to the inner wall of the support cylinder (41). A return spring (411) is connected between the inner wall of the support cylinder (41) and the piston disc (42). A sealing cover (43) is connected to the top of the support cylinder (41). A sliding rod (421) is connected to the top of the piston disc (42). The sliding rod (421) penetrates through the sealing cover (43) and is slidably connected, and the top of the sliding rod (421) is connected to the support platform (2) through a connection disc (422). An energy release groove (46) is opened below the interior of the support cylinder (41). A piston ring (47) is slidably connected to the inner wall of the energy release groove (46). A liquid discharge hole (44) is opened on the inner wall of the support cylinder (41).

2. The base provided with a shock-absorbing mechanism according to claim 1, wherein: The number of the liquid discharge holes (44) is six and they are evenly distributed. The piston ring (47) is provided with an inclined surface (4701) corresponding to the position of the liquid discharge hole (44).

3. The base with a shock-absorbing mechanism according to claim 1, characterized in that: Limiting grooves (21) are opened on both sides of the support platform (2). Limiting blocks (22) are respectively fixedly connected to both sides of the top of the support frame (1), and the limiting blocks (22) are slidably connected to the inner walls of the limiting grooves (21).

4. A base provided with a shock-absorbing mechanism according to claim 1, characterized in that: A flow channel (45) is opened above the energy release groove (46) of the support cylinder (41). The flow channel (45) extends above the support cylinder (41) and is communicated with the interior of the support cylinder (41).

5. A base provided with a shock-absorbing mechanism according to claim 4, characterized in that: The number of the flow channels (45) is three and they are evenly distributed. The piston ring (47) is provided with a communication hole (471) corresponding to the position of the flow channel (45).

6. The base with a shock-absorbing mechanism according to claim 4, characterized in that: An annular air chamber (472) is opened above the energy release groove (46). An extrusion ring (473) is connected to the top of the piston ring (47) corresponding to the position of the annular air chamber (472).

7. The base with a shock-absorbing mechanism according to claim 1, characterized in that: One-way valves (423) are connected to both sides of the inner wall of the piston disc (42), and the flow direction of the one-way valves (423) is from top to bottom.

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