Elevator main engine vibration damping seat

Abstract

An elevator mainframe vibration damping seat includes a base with an elastic vibration damping component installed inside and an adjustment seat arranged above the base. A plurality of preload adjustment mechanisms are arranged at different positions between the adjustment seat, the base and the elastic vibration damping component. The preload adjustment mechanism includes an elastic member, a pressure plate pressed on the elastic member and an adjustment member driving the pressure plate to rise and fall. In view of the unevenness of the installation ground, the base and the adjustment seat are both in a certain tilt state, and the elastic members are of different heights. Therefore, the adjustment members at different positions are used to apply different preloads to the corresponding elastic members through the pressure plate, so that the elastic members are compressed to different degrees and their top surface heights are consistent, thereby making the top surface of the adjustment seat horizontal, so as to facilitate the installation of the elevator mainframe. Therefore, the elevator mainframe vibration damping seat can effectively ensure the horizontality and working stability of the elevator by adjusting the preload of the preload adjustment mechanism.

Description

Technical Field

[0001] The invention relates to a vibration reduction device for a lifting elevator, in particular to a seat component for reducing the vibration transmitted outwards by an elevator main unit. Background Art

[0002] The elevator mainly includes the car, traction system, weight balance system and electric traction system, and the traction motor, that is, the elevator main unit, is the most important component of the electric traction system. In order to ensure the accuracy and stability of the car during movement, the elevator main unit and its working end need to be kept at a certain verticality and horizontality; on the other hand, in order to protect the elevator main unit and reduce the vibration caused by it, the elevator main unit needs to be installed on the vibration-damping seat. However, due to the different specific conditions of different elevator installation locations, their horizontality is also different. When the elevator main unit and the vibration-damping seat are installed in these locations, it will inevitably affect the horizontality of the elevator main unit and its working end; at the same time, due to the uneven weight of the elevator main unit, the pressure on the vibration-damping seat at various locations is also different, and the vibration-damping seat is installed with an elastic vibration-damping structure. Therefore, after the elevator main unit is installed on the vibration-damping seat, the vibration-damping seat will be tilted, thereby aggravating the tilt of the elevator main unit and its working end. Summary of the invention

[0003] The object of the present invention is to provide a vibration-damping seat which can adjust the horizontality of an elevator mainframe and its working end by adjusting the preload force, so as to ensure the safety and stability of the elevator operation.

[0004] The elevator main engine vibration-damping seat described in the present invention includes a fixedly installed base and an adjustment seat arranged above the base, an elastic vibration-damping component providing vibration-damping capability is arranged in the base, a support plate is provided on the top surface of the elastic vibration-damping component, and a plurality of preload adjustment mechanisms are arranged at different positions between the support plate and the adjustment seat; the preload adjustment mechanism includes an elastic member placed on the top surface of the support plate and having elasticity, a pressure plate arranged on the top surface of the elastic member, and an adjustment member for driving the pressure plate to rise and fall.

[0005] The elevator main engine vibration-damping seat has a bracket fixedly installed at the bottom of the adjustment seat, the bottom of the bracket is arranged in the base, and a lateral vibration-damping pad is arranged between the outer side of the bracket and the base.

[0006] The elevator main engine vibration damping seat, the adjusting part is an adjusting screw and an adjusting nut which are threadedly connected to each other, the adjusting nut is fixedly installed on the adjusting seat, the adjusting screw is vertically arranged and the end thereof passes through the top surface of the adjusting seat and abuts against the pressure plate.

[0007] The elevator main engine vibration damping seat described in the present invention is that the elevator main engine is installed on the adjustment seat, and a preload adjustment mechanism is provided at different positions between the adjustment seat and the base. The elevator main engine is kept at an appropriate level by adjusting the preload at different positions, so as to meet the working requirements of the elevator. When the elevator main engine vibrates due to work, the vibration will be transmitted to the elastic vibration damping component through the preload adjustment mechanism, and then the elastic vibration damping component is used to achieve buffering and vibration reduction. The elastic vibration damping component can be a multi-layer elastic vibration damping pad, or other existing elastic vibration damping structures, which will not be described in detail here. In the above process of adjusting the level of the elevator main engine, the elastic members at each position have the same vertical thickness, but they have different heights due to the unevenness of the installation environment, thereby causing the adjustment seat and the elevator main engine supported thereon to fail to reach the required level. For this reason, the adjustment members on each preload adjustment mechanism are used to drive the corresponding pressing plate to rise and fall, and then the vertical preload is applied to the elastic member through the pressing plate, thereby changing the preload of the elastic member and compressing the elastic member with a higher top surface height, until the top surfaces of each elastic member are located at the same horizontal plane, so that the adjustment seat and the elevator main engine reach the required level. Therefore, the elevator mainframe vibration damping seat can effectively ensure the horizontality of the elevator mainframe and its working end through the setting of the preload adjustment mechanism, thereby ensuring the safety and stability of the elevator operation. The preload adjustment mechanism has a simple structure, is easy to manufacture, and has a wide range of applications. The use of an adjusting screw and a nut as an adjusting member is extremely simple and convenient to operate, and the operation is accurate and stable. In addition, the setting of the bottom bracket of the adjustment seat can facilitate the setting of a lateral vibration damping pad between the bracket and the base to reduce the lateral vibration of the elevator mainframe caused by the operation, thereby further improving the vibration reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural diagram of the elevator main engine vibration damping seat.

[0009] Figure 2 It is a partial structural diagram of the elevator main engine vibration damping seat.

[0010] Figure 3 It is a schematic diagram of the cross-sectional structure of the elevator main engine vibration damping seat.

[0011] Figure 4 It is a structural schematic diagram of the elastic vibration reduction component.

[0012] Figure 5 It is a schematic diagram of the connection structure of the auxiliary pressure screw, the auxiliary pressure nut and adjacent parts.

[0013] Figure 6 , 7 It is a structural schematic diagram of the preload force adjustment mechanism.

[0014] Figure 8It is a schematic diagram of the connection structure of positioning bolts, supporting bolts and adjacent parts. DETAILED DESCRIPTION

[0015] An elevator main engine vibration damping seat, comprising a fixedly installed base 1 and an adjustment seat 2 arranged above the base, an elastic vibration damping component 3 providing vibration damping capability is arranged in the base, a support plate 4 is laid on the top surface of the elastic vibration damping component, and a plurality of preload adjustment mechanisms are arranged at different positions between the support plate and the adjustment seat; the preload adjustment mechanism comprises an elastic member 5 placed on the top surface of the support plate and having elasticity, a pressure plate 6 arranged on the top surface of the elastic member, and an adjustment member 7 driving the pressure plate to rise and fall; the adjustment member 7 is an adjustment screw mutually screwed together. Rod 71 and adjusting nut 72, the adjusting nut is fixedly mounted on the adjusting seat 2, the adjusting screw is vertically arranged and the end thereof passes through the top surface of the adjusting seat and abuts against the pressure plate 6; in addition, a downwardly recessed concave platform 21 is provided on the top surface of the adjusting seat 2 opposite to the adjusting screw 71, and the head of the adjusting screw is arranged in the concave platform; and, a bracket is fixedly mounted on the bottom of the adjusting seat 2, the bottom of the bracket is arranged in the base 1, and a positioning cavity is provided on the bracket for placing the elastic member 5 and limiting its lateral movement, and a lateral vibration-damping pad 9 is provided between the outer side of the bracket and the base.

[0016] The elevator main engine vibration damping seat has a base fixedly installed on the ground. The adjustment seat and the elevator main engine installed thereon will be tilted to a certain extent due to the unevenness of the ground. The elastic parts on the preload adjustment mechanism at different positions of the adjustment seat also have different horizontal heights. At this time, the adjustment screw at the required position is rotated to change its horizontal height, that is, the vertical preload force can be applied to the elastic part through the pressure plate. After the elastic part is stressed, it will be compressed and the top surface height will be reduced. When the top surfaces of the elastic parts at various locations are located in the same horizontal plane, the adjustment seat and the elevator main engine have reached the required level. The elevator main engine vibration damping seat can effectively ensure the horizontality and working stability of the elevator by adjusting the preload adjustment mechanism of the preload adjustment mechanism, and its adjustment operation is convenient and accurate. The setting of the concave platform on the top surface of the adjustment seat can hide the adjustment screw to prevent it from affecting the assembly and disassembly and operation of the elevator main engine. The setting of the lateral vibration damping pad and the elastic parts inside the preload adjustment mechanism can further improve the vibration reduction effect.

[0017] The elevator mainframe vibration damping seat, the top of the outer side of the base 1 is bent inward and parallel to the top surface of the adjustment seat 2, which can be specifically as follows Figure 2 , 3As shown, the base 1 includes a slot plate 11 which is hollow and has openings on the top surface and both ends, and side covers 12 which are detachably mounted on both sides of the slot plate, and one side edge of the side cover extends to above the side edge of the top surface of the slot plate and is opposite to the bracket, and the lateral vibration-damping pad 9 is arranged between the side cover and the bracket; in addition, there are end covers 14 detachably mounted on both ends of the slot plate, and the top surface of the end cover is arranged opposite to the bracket and an end vibration-damping pad 91 is arranged between the two. This structure of the base can improve the convenience of assembly and disassembly and maintenance of parts, and the end vibration-damping pad can also limit the adjustment seat and provide vibration-damping and buffering capacity in this direction. In addition, as Figure 8 As shown, the upper ends of the upper side of the adjusting seat 2 are respectively provided with support screw holes 22 and upper positioning screw holes 23 leading to the upper side of the base 1, and the upper side of the base is also provided with a lower positioning screw hole 13 coaxially arranged with the upper positioning screw hole, and a positioning bolt 10 screwed with the upper positioning screw hole and the lower positioning screw hole. , and a support bolt 20 which is screwed with the support screw hole and whose end is against the top surface of the base. Their arrangement is necessary because during the installation of the elevator main unit, if the adjusting seat, the preload adjustment mechanism and the elastic vibration reduction assembly connected thereto can move freely, it will be detrimental to the accurate installation of the elevator main unit and will not be convenient for the subsequent adjustment of the preload; for this reason, bolts and screw holes are relatively arranged between the base and the adjusting seat, and before the installation of the elevator main unit, the positioning bolts are screwed with the upper and lower positioning screw holes, so as to laterally position the base and the adjusting seat, and at the same time, the supporting bolts are used to stably tighten the adjusting seat against the base in the vertical direction, and then the elevator main unit is installed, which can greatly improve the convenience and accuracy of installation. After the installation of the elevator main unit is completed, the positioning bolts and the supporting bolts are removed, so that the vibration reduction seat of the elevator main unit can perform vibration reduction work normally and stably.

[0018] The elevator mainframe vibration damping seat, the bracket includes a horizontally arranged supporting plate 81 and a side plate 82 vertically installed on the top surface of the supporting plate, the lateral vibration damping pad 9 is arranged on the outside of the side plate, and the supporting plate and each elastic member 5 are respectively provided with positioning holes, the bottom of the elastic member passes through the positioning hole and abuts against the supporting plate 4 to position the elastic member to avoid lateral movement or dislocation and ensure working stability. An elastic release compensation pad 30 is also arranged between the supporting plate 81 and the supporting plate 4 to provide a vibration damping effect between the supporting plate and the supporting plate. The release compensation pad 30 is fixedly installed at the bottom of the supporting plate 81 and is in contact with the supporting plate 4. There is a gap between the support plates 4. At the same time, the elastic modulus of the release compensation pad is greater than that of the elastic vibration damping assembly 3 and the elastic member 5. In the free state, there is a certain gap between the release compensation pad and the support plate below. When the vibration amplitude is small, the release compensation pad does not contact the support plate, but the elastic member and the elastic vibration damping assembly provide vibration damping until the vibration amplitude increases and the release compensation pad and the support plate are pressed against each other, and the release compensation pad is deformed to provide more vibration damping capacity; at the same time, the setting of the release compensation pad can also be used as a correction for installation errors to ensure the accuracy of the installation of the elevator host vibration damping seat. In addition, the support plate 81 and the support plate 4 are provided with through holes in the vertical direction relative to each other, and the end of the auxiliary pressure screw 40 passes through the through holes of the support plate and the support plate from one side of the support plate and is screwed with the auxiliary pressure nut 50. This is because during the installation process, it is necessary to first flip the bottom surface of the adjustment seat, then install the bracket on the adjustment seat, and then use the auxiliary pressure screw and the auxiliary pressure nut to install the support plate on the bracket, and then turn the adjustment seat over and put the bracket and the support plate into the base, and press the support plate on the elastic vibration damping assembly; therefore, the use of the auxiliary pressure screw and the auxiliary pressure nut that are screwed to each other can not only improve the convenience of assembly and disassembly operations, but also they will automatically loosen due to the vibration of the bracket, the support plate and the elastic vibration damping assembly when the elevator main unit is working, thereby avoiding affecting each elastic vibration damping pad and ensuring the working stability and vibration damping effect of each elastic vibration damping pad.

[0019] The elevator main engine vibration reduction seat, the elastic member 5 can be a spring, a rubber member, or a cylindrical rubber spring with an axial through hole as shown in the figure. The top surface of the support plate 4 is provided with a positioning column 41 extending into the axial through hole of the rubber spring to improve the installation stability of the rubber spring and prevent it from lateral movement. The pressure plate 6 is provided with a through hole and a cup-shaped pressure column 61 is connected to the through hole. The pressure column can further position the rubber spring and can also cooperate with the adjusting screw more stably. At the same time, a pressure block 73 can also be installed at the end of the adjusting screw 71. The pressure block can be cylindrical or spherical to better cooperate with the inner wall of the pressure column.

[0020] The elevator main engine vibration reduction seat, the elastic vibration reduction component 3 includes a plurality of buffer vibration reduction pads arranged in sequence from top to bottom, and the elastic modulus of each buffer vibration reduction pad is different. A rigid constraint plate 31 is provided between some adjacent buffer vibration reduction pads, and the force is transmitted through the constraint plate, so that the deformation of adjacent buffer vibration reduction pads is more balanced, and the vibration reduction effect of the buffer vibration reduction pads is better utilized, the vibration reduction capacity is improved, and the working safety and service life of the buffer vibration reduction pads can also be improved; in addition, some buffer vibration reduction pads include a plurality of release compensation pads 32 arranged at laterally intervals to reduce the area of ​​the buffer vibration reduction pads, thereby increasing the compression amount during its operation and improving the vibration reduction effect.

Claims

1. An elevator mainframe vibration-damping seat, comprising a fixedly mounted base (1) and an adjusting seat (2) arranged above the base, wherein an elastic vibration-damping component (3) providing vibration-damping capability is arranged in the base, and characterized in that: The top surface of the elastic vibration damping component is paved with a support plate (4), and a plurality of preload adjustment mechanisms are arranged at different positions between the support plate and the adjustment seat; the preload adjustment mechanism comprises an elastic member (5) placed on the top surface of the support plate and having elasticity, a pressure plate (6) arranged on the top surface of the elastic member, and an adjustment member (7) for driving the pressure plate to rise and fall; the bracket comprises a horizontally arranged support plate (81) and a side plate (82) vertically installed on the top surface of the support plate, a lateral vibration damping pad (9) is arranged on the outer side of the side plate, and the support plate and each elastic member (5) are respectively provided with a fixed The bottom of the elastic member passes through the positioning hole and abuts against the support plate (4), and an elastic release compensation pad (30) is arranged between the support plate (81) and the support plate (4), and the release compensation pad is fixedly installed at the bottom of the support plate and a gap is left between the support plate; the adjustment member (7) is an adjustment screw (71) and an adjustment nut (72) that are screwed to each other, and the adjustment nut is fixedly installed on the adjustment seat (2), the adjustment screw is vertically arranged and the end thereof passes through the top surface of the adjustment seat and abuts against the pressure plate (6), and a pressure block (73) is installed at the end of the adjustment screw (71).

2. The elevator mainframe vibration damping seat according to claim 1, characterized in that: A bracket is fixedly mounted at the bottom of the adjustment seat (2), the bottom of the bracket is arranged in the base (1), a positioning cavity is provided on the bracket for placing the elastic member (5) and limiting its lateral movement, and a lateral vibration reduction pad (9) is provided between the outer side of the bracket and the base.

3. The elevator mainframe vibration damping seat according to claim 1, characterized in that: The support plate (81) and the support plate (4) are provided with through holes in a vertical direction opposite to each other. The end of the auxiliary pressure screw rod (40) passes through the through holes of the support plate and the support plate from one side of the support plate and is screwed to the auxiliary pressure nut (50).

4. The elevator mainframe vibration damping seat according to claim 2, characterized in that: The base (1) comprises a hollow slot plate (11) with an open top surface and two ends, and side covers (12) detachably mounted on both sides of the slot plate, wherein one side edge of the side cover extends above the side edge of the slot plate top surface and is opposite to the bracket, and a lateral vibration damping pad (9) is arranged between the side cover and the bracket.

5. The elevator mainframe vibration damping seat according to claim 4, characterized in that: There are end cover plates (14) detachably mounted on both ends of the slot plate, the top surface of the end cover plate is arranged opposite to the bracket and an end vibration damping pad (91) is arranged between the two.

6. The elevator main engine vibration damping seat according to claim 1 or 2, characterized in that: The elastic member (5) is a cylindrical rubber spring with an axial through hole, the top surface of the support plate (4) is provided with a positioning column (41) extending into the axial through hole of the rubber spring; the pressure plate (6) is provided with a through hole and a cup-shaped pressure column (61) is connected to the through hole.

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