A noise-reducing elevator counterweight hoisting mechanism

Abstract

The utility model discloses an elevator counterweight traction mechanism of noise reduction transmission relates to elevator counterweight traction mechanism technical field, including mounting panel, install the traction machine on the mounting panel, the bottom of mounting panel is provided with buffer assembly, is provided with fixed assembly on buffer assembly, including screw rod in fixed assembly, screw rod penetrates mounting panel, and screw rod is fixed on buffer assembly, and the circumferential side of screw rod is evenly provided with vertical limit slot, and the screw joint of screw rod has the sleeve, and the sleeve is located the top of mounting panel, and the sleeve is provided with the limiting rod of penetration, and the limiting rod is adapted with limit slot, and the limiting rod is connected with the handle of pulling, and one side of handle is connected with the sleeve through the spring. The utility model discloses when the sleeve screw joint is on the screw rod, and the limiting rod can insert into the limit slot, and through the cooperation of limiting rod and limit slot, the circumferential rotation of sleeve relative to screw rod is limited, the axial alternating force that avoids the generation of screw loose due to continuous vibration leads to, thereby prevents the loose connection.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator counterweight traction mechanism, specifically to an elevator counterweight traction mechanism with noise reduction transmission. Background Technology

[0002] The elevator traction machine is the power unit of an elevator, also known as the elevator main unit. Its function is to deliver and transmit power to make the elevator run. It consists of a motor, brake, coupling, gearbox, traction sheave, frame, guide wheels, and auxiliary handwheel. After prolonged operation, the traction machine is prone to loosening, which can cause vibration and noise during elevator operation, affecting the passenger's riding experience.

[0003] Chinese utility model patent application number 202023232318.2 provides a traction machine vibration damping and noise reduction device. The traction machine vibration damping and noise reduction device can buffer and reduce the vibration generated by the traction machine during operation by setting a vibration damping mechanism, thereby improving the stability of the elevator during operation. At the same time, the soundproof cover can isolate the noise generated by the traction machine, improve the passenger riding experience, and also provide dust protection for the traction machine.

[0004] However, continuous vibration will generate axial alternating force on the threaded connection between the screw and the mounting plate, which can easily lead to a decrease in the preload between the threaded pairs, thus causing the connection to loosen. Once loose, the stability of the damping mechanism will decrease, and it may even cause the mounting plate to shake excessively and fall off, affecting the damping effect of the damping mechanism. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a noise-reducing elevator counterweight traction mechanism, which solves the problem mentioned in the background technology that continuous vibration can cause axial alternating force in the threaded connection between the screw and the mounting plate, which can easily lead to the attenuation of the preload between the threaded pairs and thus cause the connection to loosen.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing elevator counterweight traction mechanism, comprising a mounting plate on which a traction machine is mounted, a buffer assembly at the bottom of the mounting plate, a fixing assembly on which a fixing assembly is mounted, the fixing assembly including a helical rod penetrating the mounting plate and fixed to the buffer assembly, vertical limiting grooves evenly distributed around the helical rod, a threaded sleeve helically connected to the helical rod, the threaded sleeve being located above the mounting plate, a limiting rod penetrating through the threaded sleeve, the limiting rod being adapted to the limiting groove, the limiting rod being connected to a pull handle, and one side of the pull handle being connected to the threaded sleeve via a spring.

[0007] Preferably, the traction machine is equipped with a heat-conducting plate, and the heat-conducting plate is provided with heat sinks.

[0008] Preferably, the traction machine is equipped with an output shaft, and the heat sinks are arranged in a ring array around the output shaft.

[0009] Preferably, a fan is mounted on the output shaft.

[0010] Preferably, the outer side of the traction machine is provided with a soundproof box consisting of two symmetrical soundproof shells, and the inner wall of the soundproof shell is bonded with sound-absorbing cotton.

[0011] Preferably, a connecting arm is provided on the outer bottom of the soundproof shell, and the connecting arm is mounted on the mounting plate by a fixing component.

[0012] This utility model provides a noise-reducing elevator counterweight traction mechanism. It has the following beneficial effects:

[0013] (1) When the screw sleeve is screwed onto the screw rod, the limiting rod can be inserted into the limiting groove. Through the cooperation between the limiting rod and the limiting groove, the circumferential rotation of the screw sleeve relative to the screw rod is restricted, so as to avoid the screw sleeve from loosening due to the axial alternating force generated by continuous vibration, thereby preventing the connection from loosening.

[0014] (2) The heat-conducting plate of this utility model is installed on the traction machine, which can quickly absorb the heat generated during the operation of the traction machine, and expand the heat dissipation area through the heat sink on it, accelerate the heat dissipation to the surrounding air, and prevent the traction machine from running at high temperature for a long time. When the fan rotates with the output shaft, it can force the air to flow and form an airflow circulation, further enhancing the heat dissipation effect of the heat sink. Attached Figure Description

[0015] Figure 1 This is a diagram showing the overall structure of the present utility model;

[0016] Figure 2 This utility model Figure 1 Structural diagram of the central sound insulation shell;

[0017] Figure 3 This utility model Figure 2 Structural diagram of the traction machine;

[0018] Figure 4 This utility model Figure 1 A structural diagram of the fixed component in the middle.

[0019] In the diagram, 1. Mounting plate; 2. Soundproof shell; 21. Connecting arm; 3. Traction machine; 31. Output shaft; 32. Heat conduction plate; 33. Heat sink; 34. Fan; 4. Buffer assembly; 5. Fixing assembly; 51. Screw sleeve; 52. Helical rod; 521. Limiting groove; 53. Pull handle; 54. Limiting rod; 55. Spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] For examples, please refer to Figures 1-4 This utility model provides a noise-reducing elevator counterweight traction mechanism, including a mounting plate 1, a traction machine 3 mounted on the mounting plate 1, a buffer assembly 4 at the bottom of the mounting plate 1, a fixing assembly 5 on the buffer assembly 4, a spiral rod 52 in the fixing assembly 5, the spiral rod 52 passing through the mounting plate 1, the spiral rod 52 being fixed on the buffer assembly 4, vertical limiting grooves 521 evenly opened on the periphery of the spiral rod 52, a screw sleeve 51 spirally connected to the spiral rod 52, the screw sleeve 51 being located above the mounting plate 1, a limiting rod 54 passing through the screw sleeve 51, the limiting rod 54 being adapted to the limiting groove 521, the limiting rod 54 being connected to the pull handle 53, one side of the pull handle 53 being connected to the screw sleeve 51 by a spring 55;

[0022] A heat-conducting plate 32 is installed on the traction machine 3, and heat sinks 33 are provided on the heat-conducting plate 32;

[0023] The traction machine 3 is equipped with an output shaft 31, and heat sinks 33 are arranged in a ring array around the output shaft 31.

[0024] A fan 34 is mounted on the output shaft 31;

[0025] The outer side of the traction machine 3 is provided with a soundproof box consisting of two symmetrical soundproof shells 2, and the inner wall of the soundproof shell 2 is covered with sound-absorbing cotton.

[0026] A connecting arm 21 is provided on the bottom outer side of the soundproof shell 2. The connecting arm 21 is mounted on the mounting plate 1 by means of the fixing component 5.

[0027] Specifically, the specific structure of the buffer assembly 4 is described in the referenced document. It is used to buffer and reduce the vibration generated by the traction machine 3 during operation, thereby improving the stability of the elevator during operation. The screw rod 52 passes through the mounting plate 1 and is fixed to the buffer assembly 4. The vertical limiting groove 521 on its periphery is adapted to the limiting rod 54 on the threaded sleeve 51. The pull handle 53 is connected to the threaded sleeve 51 through the spring 55. Pulling the pull handle 53 can disengage the limiting rod 54 from the limiting groove 521, making it easy to adjust the position of the threaded sleeve 51. When the threaded sleeve 51 rotates along the screw rod 52, the spring 55 will push the limiting rod 54 into the limiting groove 521 after being released, which can prevent the threaded sleeve 51 from rotating on its own and ensure the stability of the threaded connection between the threaded sleeve 51 and the screw rod 52, thereby achieving a tight lock between the mounting plate 1 and the buffer assembly 4.

[0028] The connection between the mounting plate 1 and the buffer assembly 4 is enhanced by the cooperation of the threaded connection and the limiting structure, which prevents the threaded pair from loosening due to the decrease of preload caused by vibration. This ensures the support stability of the buffer assembly 4 on the mounting plate 1, prevents the mounting plate 1 from shaking, and avoids the noise of parts colliding due to shaking. At the same time, it prevents the traction machine 3 from shaking excessively, ensures the stability of the transmission, and reduces transmission noise.

[0029] The traction machine 3 is surrounded by two symmetrical soundproof shells 2 forming a soundproof box. The inner wall of the soundproof shell 2 is bonded with sound-absorbing cotton. The soundproof shell 2 can block the mechanical noise generated by the traction machine 3 from spreading outward, while the sound-absorbing cotton on the inner wall can absorb noise energy, reduce sound wave reflection, reduce noise radiation from the sound source, and effectively control noise diffusion.

[0030] A heat-conducting plate 32 is installed on the traction machine 3, and heat sinks 33 are arranged in a ring array around the output shaft 31. The heat-conducting plate 32 can quickly conduct the heat generated by the traction machine 3 to the heat sinks 33, increasing the heat dissipation area and accelerating heat dissipation. This can prevent the traction machine 3 from generating abnormal vibration and noise due to overheating. At the same time, the reasonable layout of the heat sinks 33 does not affect the operation of the equipment and indirectly helps to reduce noise. Meanwhile, a fan 34 is installed on the output shaft 31. When the output shaft 31 rotates, it generates airflow that blows on the heat sinks 33, enhancing the heat dissipation effect and further reducing the temperature of the traction machine 3.

[0031] Working principle: The mounting plate 1 is installed on the top of the buffer assembly 4. The spiral rod 52 passes through the mounting plate 1. Pulling the handle 53 causes the limiting rod 54 to disengage from the limiting groove 521 of the spiral rod 52. Rotating the screw sleeve 51 causes the screw sleeve 51 to press against the mounting plate 1 and the buffer assembly 4 to fix the screw sleeve 51. Loosening the handle 53 causes the spring 55 to push the limiting rod 54 into the limiting groove 521, thus completing the fastening and locking of the mounting plate 1 and the buffer assembly 4. At the same time, the connecting arm 21 of the sound insulation shell 2 is installed on the mounting plate 1 through the fixing assembly 5, so that the sound insulation box wraps around the traction machine 3. The sound insulation shell 2 blocks the noise from spreading outward. The sound-absorbing cotton on the inner wall absorbs sound wave energy through the porous structure, reduces noise reflection, and reduces the noise radiation intensity.

[0032] When the traction machine 3 operates, it generates vibration. The buffer assembly 4 then starts to work, absorbing the vibration energy and reducing the transmission of vibration to the mounting plate 1. If the vibration causes the screw rod 52 and the screw sleeve 51 to generate axial alternating force, the locking structure of the limiting rod 54 and the limiting groove 521 will prevent the screw sleeve 51 from rotating. The spring 55 buffers the vibration impact, maintains the connection preload, and prevents the mounting plate 1 from shaking.

[0033] The output shaft 31 rotates, driving the fan 34 to rotate. The airflow blows on the heat sink 33, and the heat conduction plate 32 quickly conducts the heat generated by the operation of the traction machine 3 to the heat sink 33. The forced convection of the fan 34 accelerates the heat dissipation and prevents the traction machine 3 from vibrating abnormally due to high temperature.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A noise-reducing elevator counterweight traction mechanism, comprising a mounting plate (1), characterized in that: A traction machine (3) is installed on the mounting plate (1). A buffer assembly (4) is provided at the bottom of the mounting plate (1). A fixing assembly (5) is provided on the buffer assembly (4). The fixing assembly (5) includes a spiral rod (52). The spiral rod (52) passes through the mounting plate (1) and is fixed on the buffer assembly (4). Vertical limiting grooves (521) are evenly opened on the periphery of the spiral rod (52). A screw sleeve (51) is spirally connected to the spiral rod (52). The screw sleeve (51) is located above the mounting plate (1). A limiting rod (54) is provided through the screw sleeve (51). The limiting rod (54) is adapted to the limiting groove (521). The limiting rod (54) is connected to the pull handle (53). One side of the pull handle (53) is connected to the screw sleeve (51) through a spring (55).

2. The elevator counterweight traction mechanism with noise reduction transmission according to claim 1, characterized in that: A heat-conducting plate (32) is installed on the traction machine (3), and heat sinks (33) are provided on the heat-conducting plate (32).

3. The elevator counterweight traction mechanism with noise reduction transmission according to claim 2, characterized in that: The traction machine (3) is equipped with an output shaft (31), and the heat sink (33) is arranged in a ring array around the output shaft (31).

4. The elevator counterweight traction mechanism with noise reduction transmission according to claim 3, characterized in that: A fan (34) is mounted on the output shaft (31).

5. The elevator counterweight traction mechanism with noise reduction transmission according to claim 1, characterized in that: The traction machine (3) is provided with a soundproof box consisting of two symmetrical soundproof shells (2) on its outer side, and sound-absorbing cotton is glued to the inner wall of the soundproof shell (2).

6. The elevator counterweight traction mechanism with noise reduction transmission according to claim 5, characterized in that: The outer bottom of the soundproof shell (2) is provided with a connecting arm (21), which is mounted on the mounting plate (1) by a fixing component (5).

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