Anti-bowing and anti-overturning inorganic room-free traction machine shock absorbing base

Abstract

The application discloses a shock-absorbing base capable of preventing a traction machine from lowering and overturning, and relates to the technical field of elevators. The base comprises a base plate and a traction machine arranged on the base plate, the base plate is longer than the traction machine, and a shock absorber is arranged between the base and the base plate and fixedly connected with the base and the base plate. The base plate and the traction machine are connected in a simple beam structure, which can effectively prevent the traction machine from lowering and ensure the smooth operation of the traction machine. The shock absorber can replace the original rope spring to isolate vibration and reduce noise during the operation of the elevator.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and more specifically, to a shock-absorbing base that prevents the traction machine from tilting and overturning. Background Technology

[0002] Currently, existing machine room-less traction machines typically have a columnar, strip-shaped structure, with the traction sheave mainly located at the end. After the traction sheave is loaded with steel wire ropes, it operates in a cantilevered state. In this state, the traction machine may tilt downwards, severely affecting the smooth operation of the elevator and making it prone to overturning under special testing and acceptance conditions such as safety brake braking and bottoming out. The traction machine base, as the fixing device for the elevator traction machine, not only needs to ensure the traction machine's installation is secure and reliable, but also typically needs to be designed to isolate the vibrations generated during traction machine operation, improve elevator performance, and reduce the transmission of vibration and noise.

[0003] Chinese Patent Publication No. CN207142596U discloses a machine room-less traction machine base structure, including a traction machine base, a traction machine frame, shock-absorbing pads, and screws. The traction machine frame and the traction machine base are fixedly connected by several screws, which pass through the mounting plate of the traction machine base and the traction machine frame from top to bottom. However, it lacks an anti-tipping design, posing a risk of overturning if the shock-absorbing pads tear. Summary of the Invention

[0004] To overcome the above-mentioned technical deficiencies, a shock-absorbing base for a machine room-less traction machine that prevents tilting and overturning is provided. It can effectively prevent the traction machine from tilting under load and ensure the smooth operation of the traction machine.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a shock-absorbing base for a machine room-less traction machine that prevents tilting and overturning, comprising a base, a base plate disposed on the base, and a traction machine disposed on the base plate, wherein the length of the base plate is longer than the length of the traction machine; a shock absorber is disposed between the base and the base plate and is fixedly connected to both the base and the base plate. The structural design in this invention, where the length of the base plate is longer than that of the traction machine, makes the cantilevered traction machine and the base plate a simply supported beam structure after being rigidly connected as a whole. This effectively prevents the traction machine from tilting under load, ensuring smooth operation of the traction machine. During elevator operation, the shock absorber can replace the original rope end springs for vibration isolation and noise reduction, which is economical and practical.

[0006] Preferably, the shock absorber includes a shock absorber body, a first connecting plate and a second connecting plate disposed on both sides of the shock absorber body, the first connecting plate being connected to the base, and the second connecting plate being connected to the bottom plate. The shock absorber body is made of rubber, and the first connecting plate and the second connecting plate on both sides of the shock absorber body are fixed by vulcanization.

[0007] Preferably, the traction machine is fixedly connected to the base plate by a plurality of bolts mounted on the connecting plate 2, and the shock absorber is mounted on the base plate by a plurality of bolts mounted on the base 2. The ends of the bolts 2 pass through the base and the connecting plate 1 in sequence, and are then fastened together by nuts. This facilitates the fixed connection of the traction machine.

[0008] Preferably, the base plate and the shock absorber are provided with several anti-overturning bolts. The ends of the anti-overturning bolts pass through the base, connecting plate one, and connecting plate two in sequence. Nuts are provided between connecting plate one and connecting plate two for fastening the base and connecting plate one. Several nuts are provided at the ends passing through connecting plate two, with a gap between the nuts near the connecting plate two and the connecting plate two. The design of the anti-overturning bolts in this structure can improve the connection strength of the anti-overturning structure and help prevent the traction machine from overturning after the shock absorber tears. As the shock-absorbing component of the traction machine, the shock absorber must ensure good shock absorption while ensuring connection. Therefore, the above-mentioned gap structure is designed, which can provide a certain amount of movement space for the base plate and connecting plate two connected to the anti-overturning bolts. This movement space ensures the shock absorption function of the shock absorber.

[0009] Preferably, the connecting plate 2 is fixedly provided with a vibration damping calibration mechanism, which includes a housing, a movable disk movably disposed within the housing, and a rolling element rotatably disposed within the movable disk. The rolling element has a spherical structure and a circular hole extending along the diameter direction. An anti-overturning bolt 1 can pass through the circular hole and be fitted to the rolling element. The movable disk has a cylindrical structure, and the movable disk and the housing are combined to form an annular cavity. Several sliding rods are provided on the inner wall of the annular cavity. A spring 1 is provided between the housing and the sliding rods. A groove is provided on the outer circumferential wall of the movable disk. The ends of the sliding rods are installed in the grooves. Reset sliders are provided in the grooves on both sides of the sliding rods. A spring 2 is provided between the reset sliders and the movable disk. Herein lies the second objective of this invention: the vibration damping calibration mechanism is designed with a certain range of motion for the anti-overturning bolt 1 in the mounting holes on the connecting plate 2, facilitating vibration damping in different directions. The traction machine is designed and installed perpendicular to the ground; however, during use, it is subjected to forces in unstable directions. Therefore, when the shock absorber acts to dampen the traction machine, the original installation position of the connecting plate 2 will be misaligned with the anti-overturning bolt 1. Due to the weight of the traction machine, automatic reset is difficult. Over time, this can lead to slight misalignment or detachment between the shock absorber body and the connecting plates 1 and 2, thus affecting the damping effect. The vibration damping calibration mechanism further reduces the vibration of the traction machine under unstable directional forces. Simultaneously, it enables fine-tuning and auxiliary reset of the traction machine subjected to unstable directional forces. Specifically, the anti-overturning bolt, under the action of the vibration damping calibration mechanism on the connecting plate 2, achieves calibration reset, thereby driving the traction machine to achieve reset adjustment. This structural design effectively improves the vibration damping effect and service life of the shock absorber. Specifically, when the traction machine is subjected to an unstable directional force, the traction machine causes the base plate to shift slightly in different directions. At this time, the shock absorbers act relative to each other, absorbing the shock of the traction machine. During this process, the second connecting plate will shift in an uncertain direction, thereby causing the rolling element to rotate relative to the position of the movable disc. At the same time, it causes the movable disc to shift relative to the upper shell of the second connecting plate. This displacement occurs on a plane perpendicular to the ground, thereby achieving auxiliary shock absorption. Then, under the action of the first spring and the slide rod, and the second spring and the reset slider, the shock absorption and reset of the second connecting plate are achieved.

[0010] Preferably, there are three sets of slide rods, which are circumferentially and equidistantly arranged within the wall of the annular cavity. This further improves the reset effect and stability of the movable disc.

[0011] Preferably, the housing on both sides of the movable disc is provided with circular mounting grooves, and elastic limiting blocks are provided in the circular mounting grooves. The elastic limiting blocks can be adapted to connect with the rod of the anti-tipping bolt. This further improves the shock absorption effect of the traction machine.

[0012] Preferably, the base and the bottom plate are provided with anti-overturning bolts II. The end of the anti-overturning bolts II passes through the base, connecting plate I, connecting body II, and bottom plate in sequence. Nuts are fastened to the bolt body II between connecting plate I and connecting plate II. Several nuts are provided on the end of the bolt body II passing through the bottom plate. A gap II is provided between the nuts near the bottom plate and the bottom plate. The design of the anti-overturning bolts II in this structure can improve the connection strength of the anti-overturning structure and help prevent the traction machine from overturning after the shock absorber tears. As the shock-absorbing component of the traction machine, the shock absorber must ensure good shock absorption while ensuring connection. Therefore, the above-mentioned gap II structure is designed, which can provide a certain amount of movement space for the connecting plate II connected to the anti-overturning bolts II. This movement space ensures the shock absorption function of the shock absorber.

[0013] Both the first and second anti-rollover bolts have cotter pins at their ends. This structure prevents the nuts on the ends of the first and second anti-rollover bolts from slipping out, ensuring the reliability of the anti-rollover structure.

[0014] Preferably, the base is provided with a rope end assembly, one end of which is connected to the base plate. By using the main unit's shock absorber for vibration isolation, the spring in the original rope end assembly can be eliminated, achieving the same shock absorption function and noise reduction effect, which is economical and practical.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) The structural design of the base plate being longer than the traction machine makes the cantilever traction machine and the base plate rigidly connected as a whole into a simply supported beam structure, which can effectively prevent the traction machine from tilting down after being loaded, and ensure the smooth operation of the traction machine; when the elevator is running, the shock absorber can be used to replace the original rope head spring for vibration isolation and noise reduction, which is economical and practical; (2) The shock absorption calibration mechanism can further realize the shock absorption of the unstable direction force of the traction machine. At the same time, it can also realize the fine adjustment and auxiliary reset of the traction machine subjected to the unstable direction force. Specifically, the anti-overturning bolt is calibrated and reset under the action of the shock absorption calibration mechanism on the second connecting plate, thereby driving the traction machine to achieve reset adjustment. The design of this structure can effectively improve the shock absorption effect and service life of the shock absorber. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a shock-absorbing base for a machine room-less traction machine that prevents head-down and overturning according to the present invention.

[0017] Figure 2 This is a schematic diagram of the shock absorber of the present invention;

[0018] Figure 3 yes Figure 1 A magnified view of the area marked "A" in the image.

[0019] Figure 4 This is a schematic diagram of the vibration reduction calibration mechanism of the present invention;

[0020] Figure 5 yes Figure 4 The cross-sectional view at "BB".

[0021] In the diagram: 1. Traction machine; 2. Base plate; 3. Shock absorber; 3.1. Shock absorber body; 3.2. Connecting plate one; 3.3. Connecting plate two; 4. Base; 5. Bolt body one; 6. Bolt body two; 7. Anti-tipping bolt one; 8. Rope end assembly; 9. Nut; 10. Clearance one; 11. Anti-tipping bolt two; 12. Clearance two; 13. Cotter pin; 14. Shock absorber calibration mechanism; 15. Housing; 16. Movable disc; 17. Rolling element; 18. Circular hole; 19. Annular cavity; 20. Slide rod; 21. Spring one; 22. Slide groove; 23. Reset slider; 24. Spring two; 25. Mounting hole; 26. Moving area; 27. Circular mounting groove; 28. Elastic limit block. Detailed Implementation

[0022] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0023] Example 1: A shock-absorbing base for a machine room-less traction machine that prevents head-down and tipping (see attached) Figure 1 To be continued Figure 3 The system includes a base 4, a base plate 2 mounted on the base 4, and a traction machine 1 rigidly connected to the base plate 2. The base plate 2 is longer than the traction machine 1. Three shock absorbers 3 are located between the base 4 and the base plate 2, and are fixedly connected to both. A rope end assembly 8 is provided on the base 4, with one end connected to the base plate 2. Vibration isolation is achieved using the main shock absorber, eliminating the need for the original rope end assembly's springs while still achieving vibration reduction and noise reduction—an economical and practical solution. The structural design of the base plate 2 being longer than the traction machine 1 makes the cantilevered traction machine 1, rigidly connected to the base plate 2, a simply supported beam structure. This effectively prevents the traction machine 1 from tilting under load, ensuring smooth operation. During elevator operation, the shock absorbers 3 can replace the original rope end springs for vibration isolation and noise reduction, making it economical and practical.

[0024] The shock absorber 3 includes a shock absorber body 3.1, a first connecting plate 3.2 and a second connecting plate 3.3 disposed on both sides of the shock absorber body 3.1. The first connecting plate 3.2 is connected to the base 4, and the second connecting plate 3.3 is connected to the bottom plate 2. The shock absorber body is made of rubber, and the first connecting plate and the second connecting plate on both sides of the shock absorber body are fixed by vulcanization.

[0025] The traction machine 1 is fixedly connected to the base plate 2 by a plurality of bolts 5 mounted on the connecting plate 3.3. The shock absorber 3 is mounted on the base plate 2 by a plurality of bolts 6 mounted on the base 4. The ends of the bolts 6 pass through the base 4 and the connecting plate 3.2 in sequence, and are then fastened with nuts. This facilitates the fixed connection of the traction machine 1.

[0026] The base plate 2 and the shock absorber 3 are provided with several anti-overturning bolts 7. The ends of the anti-overturning bolts 7 pass through the base 4, connecting plate 3.2, and connecting plate 3.3 in sequence. Nuts 9 are provided between connecting plate 3.2 and connecting plate 3.3 for fastening the connection between the base and connecting plate 1. Several nuts 9 are provided at the end of connecting plate 2. A gap 10 is provided between the nut 9 near connecting plate 3.3 and connecting plate 3.3. The design of the anti-overturning bolts 7 in this structure can improve the connection strength of the anti-overturning structure and help prevent the traction machine 1 from overturning after the shock absorber 3 tears. As the shock absorber 3 is a shock-absorbing component of the traction machine, it must ensure good shock absorption while ensuring connection. Therefore, the above-mentioned gap 1 structure is designed, which can provide a certain amount of movement space for the base plate 2 and connecting plate 3.3 connected to the anti-overturning bolts 7. This movement space ensures the shock absorption function of the shock absorber 3.

[0027] Anti-tipping bolts 11 are provided on the base 4 and the base plate 2. The ends of the anti-tipping bolts 11 pass through the base 4, connecting plate 3.2, connecting body 3.3, and base plate 2 in sequence. Nuts 9 are fastened to the anti-tipping bolts 11 between connecting plate 3.2 and connecting plate 3.3. Several nuts 9 are provided on the ends of the anti-tipping bolts 11 that pass through the base plate 2. A gap 12 is provided between the nuts 9 near the base plate 2 and the base plate 2. The design of the anti-tipping bolts 11 in this structure can improve the connection strength of the anti-tipping structure and help prevent the traction machine 1 from overturning after the shock absorber 3 tears. As the shock absorber 3 is the shock-absorbing component of the traction machine 1, this component must ensure good shock absorption effect while ensuring connection function. Therefore, the above-mentioned gap 12 structure is designed, which can provide a certain amount of movement space for the connecting plate 3.3 connected to the anti-tipping bolts 11. This movement space ensures the shock absorption function of the shock absorber 3.

[0028] Both the anti-rollover bolt 7 and the anti-rollover bolt 11 have cotter pins 13 on their ends. This structure prevents the nuts 9 on the ends of the anti-rollover bolts 7 and 11 from slipping out, ensuring the reliability of the anti-rollover structure.

[0029] Example 2: See Appendix Figure 1 To be continued Figure 5 Based on Embodiment 1, a vibration damping calibration machine 14 is added. The vibration damping calibration mechanism 14 is fixed on the connecting plate 3.3 on the end of the vibration damper 3. The vibration damping calibration mechanism 14 includes a housing 15, a movable disk 16 movably disposed in the housing 15, and a rolling body 17 rollingly disposed in the movable disk 16. The rolling body 17 has a spherical structure and a circular hole 18 extending along the diameter direction. The anti-overturning bolt 7 can pass through the circular hole 18 and be fitted to the rolling body 17. The movable disk 16 has a cylindrical structure. The movable disk 16 and the housing 15 are combined to form an annular cavity 19. Several sliding rods 20 are provided on the inner wall of the annular cavity 19. A spring 21 is provided between the housing 15 and the sliding rods 20. A groove 22 is provided on the outer circumferential wall of the movable disk 16. The end of the sliding rod 20 is installed in the groove 22. A reset slider 23 is provided in the groove on both sides of the sliding rod 20. A spring 24 is provided between the reset slider 23 and the movable disk 13. The vibration damping calibration mechanism is designed with a certain range of motion 26 for the anti-overturning bolt 7 in the mounting hole 25 on the connecting plate 2.3, facilitating vibration damping in different directions. The traction machine 1 is designed and installed perpendicular to the ground. However, during use, the traction machine 1 will be subjected to forces in unstable directions. Therefore, when the shock absorber 3 dampens the traction machine 1, the mounting hole on the connecting plate 2.3 will be misaligned with the center of the anti-overturning bolt 7. Due to the weight of the traction machine 1, automatic reset is difficult to achieve. Prolonged use will lead to… Slight misalignment or detachment may occur between the shock absorber body 3.1 and connecting plates 3.2 and 3.3, thus affecting the shock absorber's damping effect. The damping calibration mechanism 11 can further reduce the damping of the traction machine under unstable directional forces. At the same time, it can also achieve fine-tuning and auxiliary reset of the traction machine 1 subjected to unstable directional forces. Specifically, the anti-overturning bolts are calibrated and reset under the action of the damping calibration mechanism on connecting plate 2, thereby driving the traction machine to achieve reset adjustment. The design of this structure can effectively improve the damping effect and service life of the shock absorber. Specifically, when the traction machine 1 is subjected to an unstable directional force, the traction machine 1 causes the base plate to shift slightly in different directions. At this time, the shock absorber 3 acts relative to the traction machine 1 to dampen the vibration. During this process, the connecting plate 2 3.3 will shift in an uncertain direction, thereby causing the rolling element 17 to rotate relative to the position of the movable disk 16. At the same time, it causes the movable disk 16 to shift relative to the upper housing 15 of the connecting plate 2 3.3. The direction of this displacement occurs on a plane perpendicular to the ground, thereby achieving auxiliary damping. Then, under the action of the spring 1 21 and the slide rod 20, and the spring 2 24 and the reset slider 23, the damping and reset of the connecting plate 2 3.3 is achieved.

[0030] There are three sets of slide rods 20, which are equidistantly arranged in the circumferential direction within the wall of the annular cavity 19. This further improves the reset effect and stability of the movable disc 13.

[0031] The housing 15 on both sides of the movable disc 16 is provided with circular mounting grooves 27, and elastic limiting blocks 28 are provided in the circular mounting grooves 27. The elastic limiting blocks 28 can be adapted to connect with the rod body of the anti-overturning bolt 7. The elastic limiting blocks 28 are made of rubber and other materials, which further improves the shock absorption effect of the traction machine. The connecting plate 3.3 connected to the anti-overturning bolt 11 is also provided with a matching shock absorption calibration machine 14, and the shock absorption principle is the same as that after the anti-overturning bolt 7 is installed.

[0032] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A shock-absorbing base for a machine room-less traction machine that prevents tilting and overturning, characterized in that, The device includes a base, a base plate disposed on the base, and a traction machine disposed on the base plate, wherein the length of the base plate is longer than the length of the traction machine; and a shock absorber disposed between the base and the base plate, and fixedly connected to both the base and the base plate. The shock absorber includes a connecting plate 1 and a connecting plate 2 respectively located on both sides of the shock absorber body. Several anti-overturning bolts 1 are provided on the base plate and the shock absorber. A shock absorption calibration mechanism is fixed on the connecting plate 2. The shock absorption calibration mechanism includes a housing, a movable disc movably located inside the housing, and a rolling element rotatably located inside the movable disc. The anti-overturning bolts 1 are installed with the rolling element. An annular cavity is formed between the movable disc and the housing. Several sliding rods are provided on the inner wall of the annular cavity. A spring 1 is provided between the housing and the sliding rods. The ends of the sliding rods are installed in the sliding grooves on the outer circumferential wall of the movable disc.

2. The anti-head-down and anti-tipping shock-absorbing base for a machine room-less traction machine according to claim 1, characterized in that, The shock absorber includes a shock absorber body, a connecting plate one and a connecting plate two respectively disposed on both sides of the shock absorber body, the connecting plate one being connected to the base, and the connecting plate two being connected to the bottom plate.

3. The anti-head-down and anti-tipping shock-absorbing base for a machine roomless traction machine according to claim 2, characterized in that, The traction machine is fixedly connected to the base plate by a number of bolt bodies 1 installed on the connecting plate 2. The shock absorber is installed on the base plate by a number of bolt bodies 2 installed on the base. The ends of the bolt bodies 2 pass through the base and the connecting plate 1 in sequence, and are then fastened together by nuts.

4. A shock-absorbing base for a machine room-less traction machine with anti-head-down and anti-tipping features as described in any one of claims 1-3, characterized in that, The end of the anti-overturning bolt passes through the base, the first connecting plate, and the second connecting plate in sequence. A nut is provided between the first connecting plate and the second connecting plate. The nut is used for fastening the connection between the base and the first connecting plate. Several nuts are provided at the end that passes through the second connecting plate. A gap 1 is provided between the nut on the side closer to the second connecting plate and the second connecting plate.

5. A shock-absorbing base for a machine room-less traction machine with anti-head-down and anti-tipping features as described in claim 4, characterized in that, The rolling element has a spherical structure and a circular hole running through it along the diameter. The anti-tipping bolt can pass through the circular hole and be fitted to the rolling element. The movable disc has a cylindrical structure and a reset slider is provided in the groove on both sides of the slide rod. A spring is provided between the reset slider and the movable disc.

6. A shock-absorbing base for a machine room-less traction machine with anti-head-down and anti-tipping features as described in claim 5, characterized in that, There are three sets of sliding rods, which are equidistantly arranged in the wall of the annular cavity.

7. A shock-absorbing base for a machine room-less traction machine with anti-head-down and anti-tipping features as described in claim 6, characterized in that, The housing on both sides of the movable disc is provided with a circular mounting groove, and an elastic limiting block is provided in the circular mounting groove. The elastic limiting block can be adapted to connect with the rod of the anti-overturning bolt.

8. A shock-absorbing base for a machine room-less traction machine with anti-head-down and anti-tipping features as described in any one of claims 1-3, characterized in that, The base and the bottom plate are provided with anti-tipping bolts II. The ends of the anti-tipping bolts II pass through the base, connecting plate I, connecting body II and the bottom plate in sequence. Nuts are fastened to the bolt body II between connecting plate I and connecting plate II. Several nuts are provided on the end of the bolt body II that passes through the bottom plate. A gap II is provided between the nut on the side near the bottom plate and the bottom plate.

9. A shock-absorbing base for a machine room-less traction machine with anti-head-down and anti-tipping features as described in claim 8, characterized in that, Both anti-rollover bolt one and anti-rollover bolt two have cotter pins on their ends.

10. A shock-absorbing base for a machine room-less traction machine with anti-head-down and anti-tipping features as described in claim 8, characterized in that, The base is provided with a rope end assembly, one end of which is connected to the base plate.

Images