An elevator compensation chain guide mechanism

Abstract

This utility model relates to an elevator compensation chain guiding mechanism, comprising two longitudinally opposite support frames, with a square mounting block horizontally fixed on the top of each support frame. A space for the compensation chain to pass through is located directly below each mounting block. U-shaped wheel frames are symmetrically arranged laterally on both ends of each mounting block, and guide wheels for guiding the compensation chain are rotatably connected within each wheel frame. In this guiding mechanism, the two wheel frames and their guide wheels are symmetrically arranged laterally on both ends of the mounting block. This design provides guiding constraints on both sides of the compensation chain at the same height plane, physically restricting the chain's swing on both sides and providing tension to the chain. This eliminates the risk of the compensation chain hitting the shaft wall or guard plate due to excessive swing, thus solving the problem of abnormal elevator noise.

Description

Technical Field

[0001] This utility model belongs to the field of elevator parts technology, and specifically relates to an elevator compensation chain guide mechanism. Background Technology

[0002] The elevator compensation chain mainly balances the weight difference of the steel wire ropes on both sides of the elevator car and counterweight as the elevator position changes; while the compensation chain needs a guide device to prevent swaying, so as to avoid entanglement with other parts, collision with shaft walls or guard plates, ensure vertical movement trajectory, reduce wear risk, and ensure operational safety.

[0003] Existing elevator compensation chain guiding devices are generally square ring guiding structures composed of four guide wheels. This guiding device is fixed to the shaft wall, and one side of the compensation chain is inserted into it for guidance and constraint. However, this type of guiding device cannot simultaneously guide and constrain the other side of the compensation chain. The compensation chain still swings to a large extent, and the compensation chain will still collide with the shaft wall or guard plate during operation, thus causing abnormal noise in the elevator. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing an elevator compensation chain guiding mechanism, the specific technical solution of which is as follows:

[0005] This utility model provides an elevator compensation chain guiding mechanism, including two support frames arranged longitudinally opposite each other. A square mounting block is horizontally fixed on the top of the two support frames. There is a space below the mounting block for the compensation chain to pass through. U-shaped wheel frames are symmetrically arranged on both ends of the mounting block. Guide wheels for cooperating with the compensation chain are rotatably connected in the two wheel frames.

[0006] As a preferred technical solution of this utility model, the wheel frame is suspended and connected to the adjustment component disposed on the corresponding end face of the mounting block;

[0007] The adjustment assembly includes a U-shaped frame that is integrally and vertically connected to the corresponding end face of the mounting block. A support screw is inserted through the transverse gap in the middle of the end face of the U-shaped frame. The outer end of the support screw is vertically and fixedly connected to the corresponding wheel frame. The support screw is held and fixedly connected to the end face of the U-shaped frame by a positioning nut that is axially screwed on it.

[0008] As a preferred technical solution of this utility model, the inner end of the support screw is axially fixedly connected to a limiting square rod, and the limiting square rod is laterally clearance-fitted with the limiting square hole opened on the corresponding end face of the mounting block.

[0009] As a preferred technical solution of this utility model, a U-shaped wheel frame is longitudinally suspended directly below the mounting block, and a guide wheel is rotatably connected inside the wheel frame for cooperating with the compensating chain.

[0010] As a preferred technical solution of this utility model, the second wheel frame is suspended and connected to the elastic component passing through the middle of the mounting block;

[0011] The elastic component includes a guide rod that passes vertically through the middle of the mounting block. The bottom end of the guide rod is perpendicularly connected to the top surface of the wheel frame. A spring is axially sleeved on the lower part of the guide rod. The top end of the spring is fixedly connected to the bottom surface of the mounting block, and its bottom end is fixedly connected to an annular boss that is axially fixedly sleeved on the guide rod.

[0012] As a preferred technical solution of this utility model, a circular plate is axially and vertically connected to the top of the guide rod, and a circular rod is inserted through the edge of the circular plate along the vertically symmetrical gap of the guide rod. The bottom end of the circular rod is fixedly connected to the top surface of the mounting block.

[0013] As a preferred technical solution of this utility model, the support frame is an inverted V-shaped structure, and its top is fixedly connected to the corresponding side of the mounting block by at least one fastening bolt.

[0014] As a preferred technical solution of this utility model, the bottom ends of the two support frames are vertically connected to a square base plate.

[0015] The beneficial effects of this utility model are:

[0016] In the guiding mechanism of this utility model, two wheel frames and their guide wheels are symmetrically arranged laterally on both ends of the mounting block. This design provides guiding constraint forces on both sides of the same height plane of the compensation chain, which forms a physical restriction on the swing of the compensation chain on both sides and gives the compensation chain a certain tension, eliminating the risk of the compensation chain hitting the shaft wall or guard plate due to excessive swing, and solving the problem of abnormal noise in elevator operation caused by this. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0018] Figure 2 The main structural view of this utility model is shown;

[0019] Figure 3 A top view of the structure of this utility model is shown;

[0020] Figure 4 It shows Figure 3 Cross-sectional view of the structure along the AA direction.

[0021] The figure shows: 1. Support frame; 11. Base plate; 12. Fastening bolt; 2. Mounting block; 21. Limiting square hole; 3. Guide wheel one; 31. Wheel frame one; 4. Adjustment component; 41. U-shaped frame; 42. Support screw; 43. Positioning nut; 44. Limiting square rod; 5. Guide wheel two; 51. Wheel frame two; 6. Elastic component; 61. Guide rod; 611. Round plate; 612. Round rod; 62. Annular boss; 63. Spring; 7. Compensation chain. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0023] Example 1

[0024] To address the technical problems in the background section, the following elevator compensation chain guiding mechanism is provided:

[0025] Combination Figures 1-4 As shown, an elevator compensation chain guiding mechanism includes two longitudinally opposite support frames 1. A square mounting block 2 is horizontally fixed on the top of the two support frames 1. There is a space below the mounting block 2 for the compensation chain 7 to pass through. U-shaped wheel frames 31 are symmetrically arranged on both ends of the mounting block 2. Guide wheels 3 for guiding and cooperating with the compensation chain 7 are rotatably connected in the two wheel frames 31.

[0026] By adopting the above technical solution, the two wheel frames 31 and their guide wheels 3 in the guide mechanism are symmetrically arranged on both ends of the mounting block 2. This design provides guiding constraint force on both sides of the same height plane of the compensation chain 7, which forms a physical restriction on the swing of the compensation chain 7 on both sides and gives the compensation chain 7 a certain tension, eliminating the risk of the compensation chain 7 hitting the shaft wall or guard plate due to excessive swing, and solving the problem of abnormal noise in elevator operation caused by this.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, the support frame 1 has an inverted V-shaped structure, and its top is fixedly connected to the corresponding side of the mounting block 2 by at least one fastening bolt 12. The bottom ends of the two support frames 1 are vertically connected to a square base plate 11.

[0028] By adopting the above technical solution, the inverted V-shaped support frame 1 has a strong resistance to deformation.

[0029] The base plate 11 firmly integrates the bottom ends of the two support frames 1, which might otherwise be independently stressed, into a rigid foundation platform. The base plate 11 has a large contact area with the mounting surface at the bottom of the shaft, which improves the stability of the entire guiding mechanism against vibrations and swaying impacts generated during the operation of the compensation chain 7, and prevents the guiding mechanism's own shaking from affecting the guiding accuracy.

[0030] The use of detachable connection via fastening bolt 12 facilitates maintenance and replacement of damaged parts.

[0031] Example 2

[0032] Combination Figure 3 and Figure 4 As shown, based on the above embodiments, this embodiment further provides the following:

[0033] In this embodiment, as Figure 3 As shown, the wheel frame 31 is suspended and connected to the adjustment component 4 located on the corresponding end face of the mounting block 2;

[0034] The adjustment component 4 includes a U-shaped frame 41 that is integrally and vertically connected to the corresponding end face of the mounting block 2. A support screw 42 is inserted through the transverse gap in the middle of the end face of the U-shaped frame 41. The outer end of the support screw 42 is vertically and fixedly connected to the corresponding wheel frame 31. The support screw 42 is held and fixedly connected to the end face of the U-shaped frame 41 by a positioning nut 43 that is axially screwed on it.

[0035] By adopting the above technical solution, the support screw 42 is laterally spaced through the middle of the end face of the U-shaped frame 41, and the outer end of the support screw 42 is vertically and fixedly connected to the wheel frame 31. By axially rotating the support screw 42, the wheel frame 31 and its guide wheel 3 can be driven to move in a direction perpendicular to the compensation chain 7, thereby adjusting the gap between the guide wheel 3 and the side of the compensation chain 7 as needed.

[0036] A positioning nut 43 is axially screwed onto the support screw 42. After the support screw 42 is adjusted to its position, the positioning nut 43 is tightened to form a firm clamping effect between it and the end face of the U-shaped frame 41. The clamping force between the positioning nut 43 and the end face of the U-shaped frame 41 effectively prevents any axial displacement of the support screw 42 under operating vibration or external force, and firmly locks the position of the guide wheel 3 at the set adjustment distance, ensuring the reliability and long-term stability of the guiding constraint.

[0037] like Figure 4 As shown, the inner end of the support screw 42 is axially fixedly connected to a limiting square rod 44, and the limiting square rod 44 is laterally clearance-fitted with the limiting square hole 21 opened on the corresponding end face of the mounting block 2.

[0038] By adopting the above technical solution, the square cross-section of the limiting square rod 44 fits with the square inner wall of the limiting square hole 21; the square fit prevents circumferential rotation through planar interlocking. This design forces the limiting square rod 44 and its rigidly connected support screw 42, wheel frame 31, and guide wheel 3 to only move linearly along the axial direction of the limiting square hole 21, preventing the wheel frame 31 or guide wheel 3 from twisting around the axis of the support screw 42 during adjustment or use.

[0039] Example 3

[0040] Combination Figures 1-4 As shown, based on the above embodiments, this embodiment further provides the following:

[0041] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, a U-shaped wheel frame 51 is longitudinally suspended directly below the mounting block 2, and a guide wheel 5 is rotatably connected inside the wheel frame 51 for guiding and cooperating with the compensation chain 7.

[0042] By adopting the above technical solution, the guide wheel 2 5 contacts the bottom of the compensation chain 7 downwards, which limits the fluctuation range of the compensation chain 7 in the longitudinal plane, can improve the running tension of the compensation chain 7, and further prevent the compensation chain 7 from swinging during operation.

[0043] Guide wheel 2 5 is located directly below the travel path of the compensation chain 7, in the same or adjacent area as guide wheels 1 3 symmetrically arranged on the left and right sides of the compensation chain 7. During operation, the compensation chain 7 is subjected to lateral constraint forces from the guide wheels 1 3 on both sides and upward constraint forces from the guide wheel 2 5 directly below. This is equivalent to establishing a physical movement channel around the critical locations where the compensation chain 7 needs constraint, reducing the range of movement of the compensation chain 7 in three-dimensional space, further reducing the possibility of the compensation chain 7 colliding with the shaft wall or lining plate, and more thoroughly eliminating abnormal elevator noise caused by collisions.

[0044] like Figure 2 and Figure 4 As shown, the wheel frame 51 is suspended and connected to the elastic component 6 that passes through the middle of the mounting block 2;

[0045] The elastic component 6 includes a guide rod 61 that is vertically spaced through the middle of the mounting block 2. The bottom end of the guide rod 61 is vertically connected to the top surface of the wheel frame 51. A spring 63 is axially sleeved on the lower part of the guide rod 61. The top end of the spring 63 is fixedly connected to the bottom surface of the mounting block 2, and its bottom end is fixedly connected to an annular boss 62 that is axially fixedly sleeved on the guide rod 61.

[0046] By adopting the above technical solution, when the compensation chain 7 generates a strong upward impact due to elevator start-up, operation fluctuations or collisions, the impact force acts on the guide rod 61 through the guide wheel 2 5 and the wheel frame 2 51, compressing the spring 63. The spring 63 deforms and absorbs most of the impact energy.

[0047] Spring 63 consistently applies an upward elastic preload to guide rod 61, wheel frame 51, and guide wheel 5 via annular boss 62. This constant elastic force ensures that the working surface of guide wheel 5 continuously and stably contacts or is close to the lower surface of compensating chain 7. Even if the tension, shape, or movement trajectory of compensating chain 7 fluctuates, the extension and retraction of spring 63 can automatically fine-tune to compensate for these fluctuations, maintain a constant constraint contact pressure, and avoid the problems of excessive gaps or excessive preload that may occur with traditional rigid supports.

[0048] like Figure 2 and Figure 3 As shown, a circular plate 611 is axially and vertically connected to the top of the guide rod 61. A circular rod 612 is inserted through the edge of the circular plate 611 along the vertical symmetrical gap of the guide rod 61. The bottom end of the circular rod 612 is fixedly connected to the top surface of the mounting block 2.

[0049] By adopting the above technical solution, the circular plate 611 is fixed by symmetrically distributed circular rods 612. The force exerted by the compensating chain 7 on the guide wheel 5 may include a torque component about the vertical axis. The engagement between the circular rods 612 and the circular plate 611 directly bears and cancels these torques about the axis, preventing any circumferential rotation of the guide rods 61 and their connected bottom guide structure. This ensures that the wheel surface angle of the guide wheel 5 always remains in the designed state, avoiding uneven wear, increased resistance, or constraint failure caused by skewness.

[0050] Working principle and usage process of this utility model:

[0051] In use, the base plate 11, connected at the bottom ends of the two support frames 1, is horizontally fixed to the bottom of the elevator shaft. The compensating chain 7 is arranged vertically along the shaft and passes through the reserved space directly below the mounting block 2.

[0052] Loosen the positioning nut 43 and rotate the support screw 42 to drive the drive wheel frame 31 to move laterally, ensuring a reasonable gap between the working surface of the guide wheel 3 and the side of the compensation chain 7. The square fit between the limiting square rod 44 and the limiting square hole 21 ensures that the axis of the guide wheel 3 is always perpendicular to the compensation chain 7, preventing skewing. Tighten the positioning nut 43 to clamp the end face of the U-shaped frame 41 and lock the position of the guide wheel 3.

[0053] If the compensation chain 7 swings left and right during operation, the guide wheels 3 on both sides roll and contact its sides, and the trajectory is forcibly corrected through bidirectional physical limit to suppress the swing amplitude.

[0054] Guide wheel 5 is connected to guide rod 61 via wheel frame 51. Spring 63, under preload, pushes the annular boss 62, causing guide wheel 5 to press tightly against the lower surface of compensating chain 7. When compensating chain 7 jumps violently upwards, the impact force compresses spring 63, and guide rod 61 drives wheel frame 51 upwards to absorb energy. Circular plate 611 slides vertically along symmetrical circular rod 612, preventing guide rod 61 from tilting or twisting.

[0055] After guide wheel 3 wears out, the support screw 42 is readjusted to reduce the gap, and the positioning nut 43 is tightened. After guide wheel 5 wears out, the spring 63 automatically pushes the guide rod 61 downward to maintain contact pressure.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An elevator compensation chain guiding mechanism, characterized in that: It includes two support frames (1) arranged longitudinally opposite each other. A square mounting block (2) is fixedly arranged horizontally on the top of the two support frames (1). There is a space for the compensation chain (7) to pass through directly below the mounting block (2). A U-shaped wheel frame (31) is arranged symmetrically on both ends of the mounting block (2). A guide wheel (3) for guiding and cooperating with the compensation chain (7) is rotatably connected in the two wheel frames (31).

2. The elevator compensation chain guide mechanism according to claim 1, characterized in that: The wheel frame (31) is suspended and connected to the adjustment assembly (4) located on the corresponding end face of the mounting block (2); The adjustment component (4) includes a U-shaped frame (41) that is integrally and vertically connected to the end face of the mounting block (2). A support screw (42) is inserted through the transverse gap in the middle of the end face of the U-shaped frame (41). The outer end of the support screw (42) is vertically and fixedly connected to the corresponding wheel frame (31). The support screw (42) is held and fixedly connected to the end face of the U-shaped frame (41) by a positioning nut (43) axially screwed on it.

3. The elevator compensation chain guide mechanism according to claim 2, characterized in that: The inner end of the support screw (42) is axially fixedly connected to a limiting square rod (44), and the limiting square rod (44) is laterally fitted with a limiting square hole (21) opened on the corresponding end face of the mounting block (2).

4. The elevator compensation chain guide mechanism according to claim 1, characterized in that: The mounting block (2) is longitudinally suspended with a U-shaped wheel frame (51) and a guide wheel (5) is rotatably connected inside the wheel frame (51) for guiding and cooperating with the compensation chain (7).

5. The elevator compensation chain guide mechanism according to claim 4, characterized in that: The wheel frame 2 (51) is suspended and connected to the elastic component (6) passing through the middle of the mounting block (2); The elastic component (6) includes a guide rod (61) that passes vertically through the middle of the mounting block (2). The bottom end of the guide rod (61) is vertically connected to the top surface of the wheel frame (51). A spring (63) is axially sleeved on the lower part of the guide rod (61). The top end of the spring (63) is fixedly connected to the bottom surface of the mounting block (2), and its bottom end is fixedly connected to an annular boss (62) that is axially fixedly sleeved on the guide rod (61).

6. The elevator compensation chain guide mechanism according to claim 5, characterized in that: A circular plate (611) is axially and vertically connected to the top of the guide rod (61). A circular rod (612) is inserted through the edge of the circular plate (611) along the vertical symmetrical gap of the guide rod (61). The bottom end of the circular rod (612) is fixedly connected to the top surface of the mounting block (2).

7. The elevator compensation chain guide mechanism according to claim 1, characterized in that: The support frame (1) has an inverted V-shaped structure, and its top is fixedly connected to the corresponding side of the mounting block (2) by at least one fastening bolt (12).

8. The elevator compensation chain guide mechanism according to claim 7, characterized in that: The bottom ends of the two support frames (1) are vertically connected to a square base plate (11).

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