Elevator counterweight housing

Abstract

The utility model discloses an elevator counterweight housing, which relates to the technical field of elevators and comprises a counterweight housing assembly and two counterweight wheel assemblies. The counterweight frame assembly comprises an upper plate beam, a lower plate beam and two side clamping plates arranged in parallel. The two ends of each side clamping plate are connected with the two ends of the upper plate beam and the two ends of the lower plate beam respectively. The counterweight wheel assembly comprises a wheel seat unit and a counterweight wheel, the wheel seat unit is arranged on the upper plate beam, the counterweight wheel is rotatably arranged on the wheel seat unit, and the counterweight wheel and the upper half beam can be arranged at an angle through the wheel seat unit. The adjustable wheel seat unit is arranged on the upper plate beam, so that the counterweight wheel and the upper plate beam can form a preset angle, compared with a traditional counterweight wheel which is arranged in parallel, when the space of a shaft is limited or the size of the counterweight wheel is large, interference between wheels and interference between the wheels and the wall of the shaft are not prone to being generated, and the risk of collision or abrasion of the counterweight wheel is reduced.

Description

Technical Field

[0001] This application relates to the field of elevator technology, and in particular to an elevator counterweight frame. Background Technology

[0002] In elevator engineering, the counterweight frame is a crucial component of elevator systems. Its structural design not only affects the elevator's load-bearing capacity and operational safety but also directly impacts its stability and passenger comfort. Currently, common counterweight frames typically employ basic structures such as upper beams, lower beams, and vertical beams, using the appropriate configuration of counterweight pulleys to achieve the winding and tensioning of the elevator's steel cables. For common 2:1 structure elevators, the counterweight pulleys are usually arranged parallel to the beams with sufficient space between them to ensure normal rotation. However, with the increasing demand for high-load elevators and 4:1 structure elevators, the existing parallel structure design is gradually encountering problems in some special shafts or compact spaces. For example, for high-load 4:1 structure elevators, more or larger counterweight pulleys need to be arranged on the counterweight frame. The reduced spacing between pulleys can easily lead to interference or collision risks during normal operation. Furthermore, the limited shaft space itself can further exacerbate friction and interference between the pulleys or between the pulleys and shaft components as the counterweight frame rises or falls. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an elevator counterweight frame that, by setting movable wheel seat units on the upper beam and arranging the counterweight wheels at an incline, can significantly reduce the interference risk caused by excessively close wheel spacing.

[0004] An elevator counterweight frame according to an embodiment of this application includes: a counterweight frame assembly, the counterweight frame assembly including an upper plate beam, a lower plate beam and two parallel side clamps, the two ends of the side clamps being connected to the two ends of the upper plate beam and the lower plate beam respectively; and two counterweight wheel assemblies, the counterweight wheel assembly including a wheel seat unit and a counterweight wheel, the wheel seat unit being disposed on the upper plate beam, the counterweight wheel being rotatably disposed on the wheel seat unit, the wheel seat unit allowing the counterweight wheel to be disposed at an angle to the upper half beam.

[0005] The elevator counterweight frame according to the embodiments of this application has at least the following beneficial effects: By setting adjustable wheel seat units on the upper beam, the counterweight wheels can form a preset angle with the upper beam. Compared with the traditional parallel arrangement of counterweight wheels, when the hoistway space is limited or the counterweight wheel size is large, interference between wheels and between wheels and the hoistway wall is less likely to occur, reducing the risk of collision or wear of the counterweight wheels. The inclined arrangement of the counterweight wheels also allows the wire rope to have a more reasonable winding point and contact surface on the counterweight wheels, reducing uneven wear between the wire rope and the wheel, extending the service life of the wire rope and the counterweight wheel, and making the elevator operation smoother. The wheel seat unit can also cooperate with the counterweight wheel to install several additional functional components (such as anti-detachment brackets, dust covers, etc.), which, while meeting the requirements of large loads, further ensure the safety performance and low failure rate of the wheels and wire ropes during high-frequency use.

[0006] According to some embodiments of this application, the wheel seat unit includes a lower wheel seat, an upper wheel seat, a connecting shaft, and a rotating shaft. The lower wheel seat is connected to the upper plate beam, and the upper wheel seat is movably connected to the lower wheel seat through the connecting shaft. The rotating shaft is movably inserted through the axle of the counterweight wheel, and both ends of the rotating shaft are connected to the upper wheel seat.

[0007] According to some embodiments of this application, the wheel assembly further includes a locking member for locking the rotation angle of the lower wheel and the upper wheel.

[0008] According to some embodiments of this application, the upper wheel seat includes an upper wheel seat base plate and two upper wheel seat lifting lug plates. The two upper wheel seat lifting lug plates are respectively connected to two opposite sides of the upper wheel seat base plate and are perpendicular to the upper wheel seat base plate. The upper wheel seat base plate is movably connected to the lower wheel seat through the connecting shaft. The counterweight wheel is located between the two upper wheel seat lifting lug plates. The rotating shaft is movably inserted through the axis of the counterweight wheel, and both ends of the rotating shaft are respectively connected to the upper wheel seat lifting lug plates.

[0009] According to some embodiments of this application, the wheel seat unit further includes a plurality of anti-detachment brackets, which are symmetrically arranged on both sides of the counterweight wheel, and the two ends of the anti-detachment brackets are respectively connected to the two upper wheel seat lifting lugs.

[0010] According to some embodiments of this application, the wheel seat unit further includes a dust cover, which is located above the counterweight wheel, and both ends of the dust cover are respectively connected to the two upper wheel seat lifting lugs.

[0011] According to some embodiments of this application, it further includes a buffer plate and a buffer block, wherein the buffer plate is connected to the lower surface of the lower beam, and one end of the buffer block is connected to the lower surface of the buffer plate.

[0012] According to some embodiments of this application, it also includes a counterweight and a pressure plate. Multiple pressure plates are provided and arranged vertically between the two side clamps. The two ends of the counterweight are respectively inserted into the two side clamps. The two ends of the pressure plate are respectively connected to the two side clamps and abut against the uppermost counterweight.

[0013] According to some embodiments of this application, it also includes a plurality of guide wheels and a plurality of oil cups, wherein the guide wheels are rotatably disposed on the upper plate beam or the lower plate beam, and the oil cups are disposed on the upper plate beam or the lower plate beam adjacent to the guide wheels. Attached Figure Description

[0014] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0015] Figure 1 This is a schematic diagram of the elevator counterweight structure according to an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the counterweight wheel assembly structure according to an embodiment of this application.

[0017] Figure label:

[0018] Upper beam 110; lower beam 120; side clamping plate 130; buffer plate 140; buffer block 150; counterweight block 160; heavy pressure plate 170; wheel seat unit 210; lower wheel seat 211; upper wheel seat 212; upper wheel seat base plate 212a; upper wheel seat lifting lug plate 212b; anti-detachment bracket 214; dust cover 215; locking component 213; counterweight wheel 220. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0023] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] like Figure 1 As shown, the elevator counterweight frame in this embodiment mainly includes a counterweight frame assembly and two counterweight wheel assemblies. The counterweight frame assembly consists of an upper beam 110, a lower beam 120, and two parallel side plates 130. The two ends of the side plates 130 are connected to the left and right ends of the upper beam 110 and the lower beam 120, respectively, thus forming a robust frame structure in the vertical direction. This frame structure can withstand the elevator counterweight 160 and the loads generated during its operation, ensuring overall rigidity.

[0025] A counterweight roller assembly is installed at each of the left and right ends of the upper beam 110. For example... Figure 1 and Figure 2 As shown, each counterweight wheel assembly includes a wheel seat unit 210 and a counterweight wheel 220. The wheel seat unit 210 can take the form of an upper wheel seat 212, a lower wheel seat 211, a connecting shaft (not shown in the figure), a rotating shaft, etc., and is connected to the upper plate beam 110 by several bolts or welding. The counterweight wheel 220 is rotatably mounted on the wheel seat unit 210 and can adjust its angle within a certain range to be inclined relative to the upper plate beam 110. By tilting the counterweight wheels 220, the lateral distance between the two counterweight wheels 220 can be effectively increased, avoiding mutual interference when the shaft is narrow or the wheel size is large, and also reducing the additional wear or noise generated by the wire rope when it is winding.

[0026] During elevator operation and commissioning, technicians can fine-tune the angle of the wheel seat unit 210 based on the size of the space inside the shaft, the safe distance between the shaft wall and the counterweight rollers 220, and the actual winding requirements of the elevator wire rope. This ensures that the two counterweight rollers 220 maintain a certain angle with the upper beam 110 to reduce the risk of interference. A locking element 213 can be installed at a suitable location to secure the wheel seat unit 210 and prevent it from rotating. Through these methods, even under conditions of increased load or high elevator operating frequency, sufficient clearance can still be ensured between the counterweight rollers 220 and the shaft wall and other components, improving the overall stability and safety of the elevator system.

[0027] In summary, the elevator counterweight frame of the embodiment, by setting movable wheel seat units 210 on the upper beam 110, allows the counterweight wheels 220 to be arranged at an angle. This effectively avoids interference problems caused by the counterweight wheels 220 being too close together, while also ensuring the overall strength and operability of the counterweight frame, providing a flexible solution for applications with large load elevators or limited shaft space.

[0028] Furthermore, such as Figure 2 As shown, the wheel seat unit 210 includes a lower wheel seat 211, an upper wheel seat 212, a connecting shaft, and a rotating shaft. The lower wheel seat 211 is mounted on the top of the upper plate beam 110, for example, by means of several bolt holes; alternatively, for higher load requirements, a reinforcing plate or welding method combined with bolt connection can be used, balancing ease of installation and structural strength. The upper wheel seat 212 is movably connected to the lower wheel seat 211 via the connecting shaft. The connecting shaft can be a smooth shaft or a stepped shaft, passing through the corresponding shaft holes of the upper and lower wheel seats 211 and then fixed with fasteners (such as nuts, locking plates, or cotter pins). This allows the upper wheel seat 212 to rotate or swing relative to the lower wheel seat 211 within a certain angle range around the connecting shaft, thereby adjusting the tilt angle between the adjacent counterweight wheel 220 and the upper plate beam 110. Furthermore, in some embodiments, the upper wheel seat 212 includes an upper wheel seat base plate 212a and two upper wheel seat lifting lugs 212b respectively perpendicularly connected to the two sides of the base plate. The upper wheel seat base plate 212a is movably connected to the lower wheel seat 211 via a connecting shaft, while the two upper wheel seat lifting lugs 212b are parallel to each other and perpendicular to the upper wheel seat base plate 212a, providing stable lateral support for the installation of the counterweight wheel 220. During assembly, the position of the upper wheel seat base plate 212a can be aligned with the mounting surface of the lower wheel seat 211, allowing the connecting shaft to pass smoothly through the through holes of both, and locked with appropriate fasteners. Then, the counterweight wheel 220 is placed between the two upper wheel seat lifting lugs 212b, aligning the axis of the counterweight wheel 220 with the pivot hole on the lifting lug, and fixed with a pivot. The two ends of the pivot are reliably connected to the upper wheel seat lifting lugs 212b via nuts or locking devices, ensuring the stability of the counterweight wheel 220 during operation.

[0029] Since the upper wheel seat 212 can be angled around the connecting shaft, technicians can flexibly flip or swing the wheel seat unit 210 on-site in the elevator shaft according to the space between the counterweight wheel 220 and the shaft wall or other components to reduce interference between the wheels or between the wheels and the shaft wall. After the angle adjustment is completed, a locking element 213 can be added or used between the lower wheel seat 211 and the upper wheel seat 212 to fix the current angle and prevent the wheel seat from accidentally loosening or rotating during operation. Different structural forms can use positioning screws, positioning blocks, or pins to achieve the locking function. For example, a positioning bolt / positioning pin structure can be used as the locking element 213: several positioning holes corresponding to the rotation angle are pre-machined on the lower wheel seat 211 and the upper wheel seat 212. When the upper wheel seat 212 rotates to the target position, it accurately coincides with one set of positioning holes of the lower wheel seat 211. The positioning bolt or positioning pin can then be passed through the set of holes and tightened with nuts or locking plates. This method is simple and easy to implement, suitable for occasions where the rotation angle requirement is relatively fixed, and has low maintenance costs. Alternatively, an adjusting groove combined with a fastener structure can be used as the locking element 213: an arc-shaped or straight adjusting groove is provided on one side plate of the lower wheel seat 211 or the upper wheel seat 212, while the other wheel seat has a fastening bolt. After the upper wheel seat 212 is adjusted around the connecting shaft, the fastening bolt is tightened to lock it in the corresponding adjusting groove position on the lower wheel seat 211, thus achieving the purpose of angle fixation. This design allows for fine-tuning within a relatively continuous angle range and is more suitable for occasions with complex actual operating conditions that require repeated trial adjustments.

[0030] Understandably, in some embodiments, the wheel seat unit 210 also includes several anti-detachment brackets 214 for preventing the wire rope or other components from accidentally detaching from the counterweight wheel 220. These anti-detachment brackets 214 are generally arranged in pairs on both sides of the counterweight wheel 220 and connected to the upper wheel seat lifting lug plate 212b. The anti-detachment brackets 214 are preferably made of steel plate or alloy material and are fixed to the outside of the lifting lug plate by welding or bolting, so that they are close to the periphery of the counterweight wheel 220, thereby playing a guiding and limiting role during elevator operation. By adding anti-detachment brackets 214 on both sides of the counterweight wheel 220, even if the wire rope vibrates, slackens, or vibrates due to external forces in the shaft during heavy load or high-speed operation, the risk of it jumping out of the wheel groove can be effectively reduced, which not only improves the safety of elevator operation, but also reduces the possibility of accidents or downtime for maintenance.

[0031] Understandably, in some embodiments, the wheel seat unit 210 also includes a dust cover 215. The dust cover 215 serves as a protective component above and to the sides of the counterweight wheel 220, and can also be bolted or welded between the upper wheel seat lifting lugs 212b. The dust cover 215 is preferably made of stamped metal sheet or alloy material, and its top and sides can be arc-shaped or bent to fully cover the contour of the counterweight wheel 220. By providing the dust cover 215, the counterweight wheel 220 can be well protected during operation, effectively isolating it from dust, debris, and moisture in the shaft that could cause wear or corrosion to the wheel axle or wheel groove. Simultaneously, in conjunction with the anti-derailment bracket 214, a multi-layered safety protection system can be further formed, extending the service life of the counterweight wheel 220 and the wire rope.

[0032] Understandably, in some embodiments, a buffer plate 140 and a buffer block 150 are additionally provided between the lower plate beam 120 at the bottom of the counterweight frame and the ground or buffer area. The buffer plate 140 may be made of steel plate or composite material and is connected to the lower end face of the lower plate beam 120 by means of welding or bolting; the buffer block 150 is usually located below the buffer plate 140 and is used to provide additional shock absorption protection in extreme elevator conditions (such as overload operation or rapid fall).

[0033] Understandably, in some embodiments, the counterweight frame further includes several counterweight blocks 160 and pressure plates 170. Two side clamps 130 are arranged parallel to each other between the upper beam 110 and the lower beam 120, forming a three-dimensional space for placing the counterweight blocks 160 and pressure plates 170. The counterweight blocks 160 can be made of cast iron, steel plate combination, or concrete-encased steel structure, and are typically rectangular or stepped in shape to better fit the inner cavity of the side clamps 130. The two ends of the pressure plates 170 are connected to the two side clamps 130, and the uppermost counterweight blocks 160 are tightly abutted against each other, ensuring the stability of the counterweight blocks 160 under stress during actual operation.

[0034] Understandably, in some embodiments, several guide wheels and oil cups are provided on the upper plate beam 110 or lower plate beam 120 to facilitate smooth sliding of the counterweight frame within the hoistway guide rails and maintain good lubrication. The guide wheels can be made of materials such as polyurethane wheels, cast iron wheels, or nylon wheels. The guide wheels are mounted on the upper plate beam 110 or lower plate beam 120 and the side clamping plate 130 (or an independent small bracket) via a rotating shaft, enabling them to cooperate with the hoistway guide rails or corresponding guiding components to improve the guiding stability of the counterweight frame during vertical movement. Oil cups are located near the guide wheels and are used to hold lubricating grease or fluid. The oil cups can be externally positioned on the side of the upper plate beam 110 or lower plate beam 120 to periodically lubricate the guide wheel bearings or wheel surfaces, reducing friction and noise.

[0035] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. An elevator counterweight frame, characterized in that, include: The counterweight frame assembly includes an upper plate beam, a lower plate beam, and two parallel side clamps, with the two ends of the side clamps connected to the two ends of the upper plate beam and the lower plate beam, respectively. Two counterweight roller assemblies, each comprising a roller seat unit and a counterweight roller, wherein the roller seat unit is disposed on the upper plate beam, and the counterweight roller is rotatably disposed on the roller seat unit, and the roller seat unit allows the counterweight roller to be disposed at an angle to the upper plate beam.

2. The elevator counterweight frame according to claim 1, characterized in that, The wheel seat unit includes a lower wheel seat, an upper wheel seat, a connecting shaft, and a rotating shaft. The lower wheel seat is connected to the upper plate beam. The upper wheel seat is movably connected to the lower wheel seat through the connecting shaft. The rotating shaft is movably inserted through the axle of the counterweight wheel, and both ends of the rotating shaft are connected to the upper wheel seat.

3. The elevator counterweight frame according to claim 2, characterized in that, The wheel assembly also includes a locking element for locking the rotation angle of the lower wheel and the upper wheel.

4. The elevator counterweight frame according to claim 2, characterized in that, The upper wheel seat includes an upper wheel seat base plate and two upper wheel seat lifting lugs. The two upper wheel seat lifting lugs are respectively connected to two opposite sides of the upper wheel seat base plate and are perpendicular to the upper wheel seat base plate. The upper wheel seat base plate is movably connected to the lower wheel seat through the connecting shaft. The counterweight wheel is located between the two upper wheel seat lifting lugs, and both ends of the rotating shaft are respectively connected to the upper wheel seat lifting lugs.

5. The elevator counterweight frame according to claim 4, characterized in that, The wheel seat unit also includes several anti-detachment brackets, which are symmetrically arranged on both sides of the counterweight wheel. The two ends of each anti-detachment bracket are connected to two upper wheel seat lifting lugs, respectively.

6. The elevator counterweight frame according to claim 4, characterized in that, The wheel seat unit also includes a dust cover, which is located above the counterweight wheel, and both ends of the dust cover are connected to the two upper wheel seat lifting lugs respectively.

7. The elevator counterweight frame according to any one of claims 1 to 6, characterized in that, It also includes a buffer plate and a buffer block, wherein the buffer plate is connected to the lower surface of the lower beam, and one end of the buffer block is connected to the lower surface of the buffer plate.

8. The elevator counterweight frame according to any one of claims 1 to 6, characterized in that, It also includes counterweights and pressure plates. Multiple pressure plates are provided and arranged vertically between the two side clamps. The two ends of the counterweights are respectively inserted into the two side clamps. The two ends of the pressure plates are respectively connected to the two side clamps and abut against the uppermost counterweight.

9. The elevator counterweight frame according to any one of claims 1 to 6, characterized in that, It also includes several guide wheels and several oil cups. The guide wheels are rotatably mounted on the upper plate beam or the lower plate beam, and the oil cups are mounted on the upper plate beam or the lower plate beam adjacent to the guide wheels.

Images