Ultra-thin sectional counterweight housing for elevator

Abstract

The invention relates to the technical field of elevator accessories, in particular to an ultra-thin sectional type counterweight housing for an elevator, which comprises a mounting frame, a counter-weight frame, a counter-weight plate, a counter-weight plate, a counter-weight plate and a counter-weight plate, the plurality of counterweight strips are positioned in the placing cavity, and the counterweight strips are detachably and fixedly connected with the mounting frame; the top frame is hollow, two mandrels are connected in the top frame, the axial directions of the two mandrels are consistent, and guide wheels are rotationally connected to the mandrels; the guide shoes are connected with the mounting frame and / or the top frame, and sliding grooves used for being matched with guide rails are formed in the guide shoes; the guide wheel can be fixed through the core shaft, the core shaft is located in the top frame and does not protrude, the size of the lift car is not affected, the size of the lift car is increased on the premise that the lift car balance weight is met, the space utilization rate of a shaft is increased, synchronous lifting of the main machine beam and the counterweight frame can be achieved during layer lifting operation, and the lifting efficiency is improved. And the layer lifting efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of elevator accessories technology, and in particular to an ultra-thin segmented counterweight frame for elevators. Background Technology

[0002] A lift is a special type of equipment that performs reciprocating motion in the vertical direction to transport people or materials. The counterweight frame of the lift is one of the core components of the elevator mechanical system. Its main function is to reduce the load on the elevator drive system by balancing the weight of the car (passenger / freight car), thereby improving operating efficiency and safety.

[0003] A prior art discloses an elevator counterweight frame clamping device, which includes a counterweight frame and upright beams. Two sets of upright beams are respectively located on the outer sides of the two ends of the counterweight frame. The inner sides of the upright beams are respectively provided with baffles on the front and rear sides of the counterweight frame. The device also includes clamping device bodies located on the inner sides of the two sets of upright beams. The clamping device includes a connecting rod, a connecting plate, a nut, and a pressure block. The connecting plate is a U-shaped structure composed of a base plate and two upward-facing side walls. The two side walls are located on the inner sides of the corresponding baffles and are connected and fixed to each other. The connecting rod passes through the middle of the base plate of the connecting plate, and its bottom end is connected and fixed to the pressure block. The bottom surface of the pressure block is used to press against the top surface of the counterweight frame for fixation. The nut is located on the outer side of the connecting rod and is threadedly connected to it. The nut is located at the lower part of the base plate and is used to press against the bottom surface of the base plate.

[0004] Regarding the aforementioned technologies, the outer beams of the counterweight frame are usually integrally cast, and a fixing frame is installed on the outside of the beam to fix the guide wheels. In this case, the fixing frame will protrude from the space where the beam is located. When the width of the elevator shaft is fixed, the fixing frame installed on the outside of the beam will restrict the installation space of the car, resulting in low space utilization of the elevator shaft. Summary of the Invention

[0005] In order to increase the size of the car and improve the space utilization of the hoistway while meeting the requirements of car counterweight, this application provides an ultra-thin segmented counterweight frame for elevators.

[0006] This application provides an ultra-thin segmented counterweight frame for elevators, employing the following technical solution: An ultra-thin segmented counterweight frame for a lift includes: Mounting frame, wherein a placement cavity is formed on the mounting frame; Multiple counterweights are provided, the counterweights are located inside the placement cavity, and the counterweights are detachably and fixedly connected to the mounting frame; A hollow top frame has two spindles connected inside it. The two spindles are axially aligned and have guide wheels rotatably connected to them. Multiple guide shoes are provided, which are connected to the mounting frame and / or top frame, and the guide shoes are provided with grooves for matching with guide rails.

[0007] By adopting the above technical solution, the designed ultra-thin segmented counterweight frame for the elevator can form a placement cavity for placing counterweight bars through the installation frame. The counterweight bars can provide counterweight for the car. The top frame can serve as the mounting base for the guide wheels. The guide wheels can be fixed through the mandrel, and the mandrel is located inside the top frame and will not protrude, thus not affecting the size of the car. In this way, the size of the car can be increased while meeting the car counterweight requirements, thereby improving the space utilization of the hoistway. The guide shoes can achieve cooperation with the guide rails.

[0008] In one specific implementation, both ends of the mandrel are connected to a filling plate, the top frame has multiple fixing holes, the filling plate is located in the fixing holes, and the shape of the filling plate is adapted to the shape of the fixing holes.

[0009] By adopting the above technical solution, the designed filling plate can cooperate with the fixing hole to realize the connection between the mandrel and the top frame, thereby realizing the support of the mandrel. When the shape of the fixing hole is non-circular, it can also realize the rotation restriction of the mandrel.

[0010] In one specific implementation, anti-rotation steps are formed at both ends of the mandrel, a fixing plate is connected to the top frame, and a slot is provided on the fixing plate. When the end of the mandrel passes through the slot, the anti-rotation step abuts against the slot wall.

[0011] By adopting the above technical solution, the designed fixing plate can abut against the anti-rotation step through the slot, thereby restricting the rotation of the spindle and preventing relative rotation between the spindle and the top frame.

[0012] In one specific implementation, the top wall of the slot abuts against the outer wall of the mandrel.

[0013] By adopting the above technical solution, the mandrel designed to abut against the top wall of the slot can provide support for the mandrel through the fixing plate when counterweighting the car.

[0014] In one specific implementation, two protective covers are connected to the inner wall of the top frame, the protective covers are connected to the fixed plate, the guide wheel extends into the inner cavity formed by the protective cover, and multiple cleaning brushes are connected to the protective cover.

[0015] By adopting the above technical solutions, the designed protective cover and cleaning brush can reduce the possibility of dust falling into the guide wheel in the elevator shaft. The cleaning brush can clean the wire rope when the car is moving up and down, keeping the wire rope clean.

[0016] In one specific implementation, the top frame is connected to a plurality of rope-blocking rods, which are located on the outer periphery of the guide wheel.

[0017] By adopting the above technical solution, the designed rope-stop bar can limit the distance between the wire rope and the outer wall of the guide wheel, thereby reducing the possibility of the wire rope swaying.

[0018] In one specific implementation, there are multiple mounting frames, which are distributed vertically and are detachably fixedly connected to adjacent mounting frames.

[0019] By adopting the above technical solution, the design of multiple installation frames distributed vertically allows for a further increase in car size while maintaining the total counterweight and elevator shaft dimensions, or a reduction in car size while maintaining the elevator shaft dimensions and increasing the total configuration. Furthermore, in traditional main beam lifting operations, the lifting equipment, such as electric hoists or manual hoists, has limited load capacity, and its weight increases with its load capacity. Additionally, to reduce safety risks, the load on the rope clamps cannot be too high. Therefore, in existing technologies, it is necessary to first lift the elevator using lifting equipment. The process of lifting the main beam and car, followed by raising the counterweight frame, requires two steps. However, this application achieves a detachable connection between the mounting frames. When the main beam needs to be raised, the uppermost mounting frame can be separated from the lower mounting frame, leaving only the uppermost mounting frame and the counterweight installed within it. This reduces the total load on the lifting equipment during the lifting process. After the main beam and counterweight frame are raised, the uppermost mounting frame can be lowered into the pit to connect with the other mounting frames. This method significantly shortens the lifting time and improves efficiency.

[0020] In one specific implementation, at least one partition bar is connected to the mounting frame, and the partition bar is vertically arranged. The partition bar divides the inner cavity of the mounting frame into two placement cavities. Both the mounting frame and the partition bar have mounting grooves. The end of the counterweight bar extends into the mounting groove and abuts against the mounting frame and the partition bar respectively.

[0021] By adopting the above technical solution, the designed partition strip can first improve the connection stability between the installation frame and the top frame, and secondly, it can realize the separation of the counterweight strip, thereby reducing the length of the counterweight strip and reducing the weight of a single counterweight strip, so as to facilitate installation, handling and disassembly.

[0022] In one specific implementation scheme, pressure plate members are detachably connected to both the mounting frame and the partition strip, and the pressure plate members extend into the mounting strip groove.

[0023] By adopting the above technical solution, the designed pressure plate can extend into the mounting groove to limit the free sliding distance of the counterweight bar within the mounting groove, thereby preventing the counterweight bar from coming out of the mounting groove.

[0024] In one specific implementation scheme, both the mounting frame and the partition strip are rotatably connected to a limiting plate via a torsion spring. The limiting plate is located within the mounting strip groove, and the rotation direction of the limiting plate is horizontal.

[0025] By adopting the above technical solution, the designed limiting plate can abut against the top wall of the uppermost counterweight bar, thereby preventing the counterweight bar from coming out of the installation groove.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The designed elevator uses an ultra-thin segmented counterweight frame. The mounting frame can form a cavity for placing the counterweight bars, which can provide counterweight to the car. The top frame can serve as the mounting base for the guide wheels, and the mandrel can fix the guide wheels. The mandrel is located inside the top frame and will not protrude, thus not affecting the size of the car. This allows the size of the car to be increased while meeting the car counterweight requirements, thereby improving the space utilization of the hoistway. The guide shoes can be used to cooperate with the guide rails.

[0027] 2. The designed elevator uses an ultra-thin segmented counterweight frame. Through the filling plate, it can cooperate with the fixing hole to realize the connection between the spindle and the top frame, thereby realizing the support of the spindle. When the shape of the fixing hole is non-circular, it can also realize the rotation restriction of the spindle.

[0028] 3. The designed elevator uses an ultra-thin segmented counterweight frame. The partition bars can first improve the connection stability between the mounting frame and the top frame, and secondly, they can separate the counterweight bars, thereby reducing the length of the counterweight bars and thus reducing the weight of a single counterweight bar, which facilitates installation, handling and disassembly. Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of an ultra-thin segmented counterweight frame for an elevator according to an embodiment of this application.

[0030] Figure 2 yes Figure 1 The sectional view in the diagram is mainly used to show the structure of the mandrel, the filling plate, and the rope guide bar.

[0031] Figure 3 yes Figure 1 The three-dimensional structural diagram behind the hidden top frame is mainly used to show the fixing plate.

[0032] Figure 4 Is Figure 3 A schematic diagram of the structure after replacing the pressure plate with a limiting plate.

[0033] Figure 5 Is Figure 3 A schematic diagram of the structure when the mounting frame is set to two.

[0034] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 2. Counterweight bar; 3. Top frame; 31. Mandrel; 311. Anti-rotation step; 32. Guide wheel; 33. Guide shoe; 34. Filler plate; 35. Fixing hole; 36. Protective cover; 37. Rope guide bar; 4. Fixing plate; 41. Slot; 5. Cleaning brush; 6. Divider bar; 7. Mounting strip groove; 8. Pressure plate; 9. Limiting plate. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0036] This application discloses an ultra-thin segmented counterweight frame for elevators.

[0037] Reference Figure 1 An ultra-thin segmented counterweight frame for a hoist includes a mounting frame 1, counterweight bars 2, a top frame 3, and guide shoes 33. Multiple counterweight bars 2 and guide shoes 33 are included. A placement cavity is formed on the mounting frame 1, and the counterweight bars 2 are located within the placement cavity and are detachably and fixedly connected to the mounting frame 1. The top frame 3 is hollow, and two spindles 31 are connected inside the top frame 3. The axes of the two spindles 31 are horizontal and parallel to each other. Guide wheels 32 are rotatably connected to the spindles 31, and the thickness of the guide wheels 32 is less than the thickness of the inner cavity of the top frame 3. The mounting frame 1 forms a placement cavity for the counterweight bars 2, which provides counterweight to the car. The top frame 3 serves as the mounting base for the guide wheels 32, and the spindles 31 fix the guide wheels 32. Since the spindles 31 are located within the top frame 3, they do not protrude and thus do not affect the size of the car. This allows for an increase in the size of the car while meeting the requirements for car counterweight, thereby improving the space utilization of the hoistway.

[0038] Reference Figure 1 and Figure 2 The guide shoe 33 is connected to the mounting frame 1 and / or the top frame 3, and a groove is formed on the guide shoe 33 to match the guide rail in the elevator shaft. In this application, the guide shoe 33 can be installed only on the mounting frame 1, or only on the top frame 3, or simultaneously on both the mounting frame 1 and the top frame 3. In this embodiment, in order to ensure the smooth sliding of the mounting frame 1, the guide shoe 33 is welded and fixed to both the mounting frame 1 and the top frame 3.

[0039] Reference Figure 2Furthermore, both ends of the mandrel 31 are connected to a filling plate 34. The top frame 3 has multiple fixing holes 35. The filling plate 34 is located in the fixing holes 35, and the shape of the filling plate 34 matches the shape of the fixing holes 35. In this embodiment, the filling plate 34 and the mandrel 31 can be welded and fixed, or they can be detachably fixed by bolts. In this embodiment, the filling plate 34 and the mandrel 31 are detachably fixed by bolts to facilitate the replacement of the filling plate 34. In this application, the shape of the fixing hole 35 can be circular or other shapes such as rectangle or rhombus. In this embodiment, the shape of the fixing hole 35 is circular to facilitate processing. The filling plate 34 can cooperate with the fixing hole 35 to realize the connection between the mandrel 31 and the top frame 3, thereby realizing the support of the mandrel 31. When the shape of the fixing hole 35 is not circular, the rotation of the mandrel 31 can also be restricted.

[0040] Reference Figure 2 Furthermore, multiple rope-blocking rods 37 are inserted and fixed inside the top frame 3. The rope-blocking rods 37 are located on the outer periphery of the guide wheel 32. Through the rope-blocking rods 37, the distance between the wire rope and the outer wall of the guide wheel 32 can be limited, thereby reducing the possibility of the wire rope swaying.

[0041] Reference Figure 3 At this time, in order to avoid relative rotation between the spindle 31 and the top frame 3, anti-rotation steps 311 are formed at both ends of the spindle 31. A fixing plate 4 is bolted to the top frame 3. A slot 41 is provided on the fixing plate 4. When the end of the spindle 31 passes through the slot 41, the anti-rotation step 311 abuts against the groove wall of the slot 41. The slot 41 can abut against the anti-rotation step 311 to restrict the rotation of the spindle 31 and avoid relative rotation between the spindle 31 and the top frame 3. Specifically, the top wall of the slot 41 abuts against the outer wall of the spindle 31. The spindle 31, which abuts against the top wall of the slot 41, can be supported by the fixing plate 4 when the car is being counterweighted.

[0042] Reference Figure 3 Furthermore, two protective covers 36 are welded and fixed to the inner wall of the top frame 3. The protective covers 36 are bolted to the fixing plate 4, and the bolts and nuts fixing the protective covers 36 and the fixing plate 4 do not extend beyond the outer wall of the top frame 3. The guide wheel 32 passes through the inner cavity of the top frame 3 and extends into the inner cavity formed by the protective cover 36. Multiple cleaning brushes 5 are bolted to the protective cover 36. When the steel wire rope on the guide wheel 32 is in a taut and vertical state, it will pass through the bristles on the cleaning brushes 5. Through the protective cover 36 and the cleaning brushes 5, the possibility of dust in the elevator shaft falling onto the guide wheel 32 can be reduced. The cleaning brushes 5 can clean the steel wire rope when the car is moving up and down, keeping the steel wire rope clean.

[0043] Reference Figure 3Furthermore, at least one partition strip 6 is welded and fixed to the mounting frame 1. The partition strip 6 is vertically arranged and divides the inner cavity of the mounting frame 1 into two placement cavities. Both the mounting frame 1 and the partition strip 6 have mounting grooves 7. The ends of the counterweight strip 2 extend into the mounting grooves 7 and abut against the mounting frame 1 and the partition strip 6 respectively. The cross-sectional shape of the mounting groove 7 matches the end shape of the counterweight strip 2. During installation, the counterweight strip 2 is first tilted, and then gradually leveled. At this time, both ends of the counterweight strip 2 extend into the mounting grooves 7. The installation of counterweight 2 is achieved through the partition strip 6. Firstly, the connection stability between the mounting frame 1 and the top frame 3 can be improved. Secondly, the counterweight 2 can be separated, and the length of the counterweight 2 can be reduced, thereby reducing the weight of a single counterweight 2, which facilitates installation, handling, and disassembly. In this application, the number of partition strips 6 on the mounting frame 1 can be one, two, or other numbers. In order to achieve a balance between the mass of a single counterweight 2 and the total counterweight mass of all counterweights 2 on the mounting frame 1, the number of partition strips 6 is one.

[0044] Reference Figure 3 In some embodiments of this application, pressure plate members 8 are bolted to both the mounting frame 1 and the partition strip 6. The pressure plate members 8 extend into the mounting strip groove 7, thereby limiting the free sliding distance of the uppermost counterweight strip 2 in the placement cavity and preventing the counterweight strip 2 from detaching from the mounting frame 1.

[0045] Reference Figure 4 In some other embodiments of this application, no pressure plate 8 is provided on the mounting frame 1 and the partition bar 6, but a limiting plate 9 is rotatably connected to the mounting frame 1 and the partition bar 6 by a torsion spring. The limiting plate 9 is located in the mounting strip groove 7, and the rotation direction of the limiting plate 9 is set horizontally. The limiting plate 9 can abut against the top wall of the uppermost counterweight bar 2, thereby limiting the free sliding distance of the uppermost counterweight bar 2 in the placement cavity and preventing the counterweight bar 2 from detaching from the mounting frame 1.

[0046] Reference Figure 5 There are multiple mounting frames 1, which are distributed vertically, and adjacent mounting frames 1 are detachably fixedly connected by connecting bolts. With multiple mounting frames 1 distributed vertically, the size of the car can be further increased without changing the total counterweight and elevator shaft size, or the size of the car can be reduced without changing the elevator shaft size and increasing the total configuration.

[0047] The implementation principle of an ultra-thin segmented counterweight frame for an elevator according to an embodiment of this application is as follows: The guide wheel 32 is connected to the steel wire rope inside the elevator shaft, and the steel wire rope passes through the gap between the guide wheel 32 and the rope-stopping rod 37 to reduce swaying. Then, force is applied to the counterweight bar 2, causing it to be initially placed in the placement cavity while maintaining an inclined state. Then, the counterweight bar 2 is turned to a horizontal position, at which point both ends of the counterweight bar 2 extend into the mounting slot 7 to restrict horizontal displacement. The installation action of the counterweight bar 2 is repeated until the total weight of the counterweight bars 2 on the mounting frame 1 reaches a preset value. At this point, the counterweight bar 2 is deflected by the pressure plate 8 or... The limiting plate 9 restricts the position of the uppermost counterweight 2, thereby controlling the displacement of all counterweights 2 within the mounting frame 1 along the direction of the mounting groove 7, thus preventing the counterweights 2 from slipping. Furthermore, since the guide wheel 32 is located in the inner cavity of the top frame 3, and the spindle 31 is supported by the filling plate 34 and the fixing hole 35, and the rotation of the spindle 31 is restricted by the fixing plate 4 located inside the top frame 3, it is possible to achieve a boltless or other fixed structure on the outside of the mounting frame 1, thereby increasing the size of the car without changing the size of the elevator shaft and the total mass of the counterweight provided by the counterweight frame.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A thin-film segmented counterweight frame for a lifting platform, characterized in that: include: Mounting frame (1), on which a placement cavity is formed; Multiple counterweights (2) are located inside the placement cavity, and the counterweights (2) are detachably and fixedly connected to the mounting frame (1); A hollow top frame (3) is provided, and two spindles (31) are connected inside the top frame (3). The two spindles (31) are aligned in the same direction, and a guide wheel (32) is rotatably connected to the spindle (31). Multiple guide shoes (33) are connected to the mounting frame (1) and / or the top frame (3), and the guide shoes (33) are formed with grooves for matching with guide rails.

2. The ultra-thin segmented counterweight frame for elevators according to claim 1, characterized in that: Both ends of the mandrel (31) are connected to a filling plate (34). The top frame (3) has multiple fixing holes (35). The filling plate (34) is located in the fixing hole (35), and the shape of the filling plate (34) is adapted to the shape of the fixing hole (35).

3. The ultra-thin segmented counterweight frame for elevators according to claim 2, characterized in that: The mandrel (31) has anti-rotation steps (311) at both ends. A fixing plate (4) is connected to the top frame (3). A slot (41) is provided on the fixing plate (4). When the end of the mandrel (31) passes through the slot (41), the anti-rotation step (311) abuts against the groove wall of the slot (41).

4. The ultra-thin segmented counterweight frame for elevators according to claim 3, characterized in that: The top wall of the slot (41) abuts against the outer wall of the mandrel (31).

5. The ultra-thin segmented counterweight frame for elevators according to claim 3, characterized in that: Two protective covers (36) are connected to the inner wall of the top frame (3). The protective covers (36) are connected to the fixing plate (4). The guide wheel (32) extends into the inner cavity formed by the protective cover (36). Multiple cleaning brushes (5) are connected to the protective cover (36).

6. The ultra-thin segmented counterweight frame for elevators according to claim 2, characterized in that: Multiple rope-blocking rods (37) are connected to the top frame (3), and the rope-blocking rods (37) are located on the outer periphery of the guide wheel (32).

7. The ultra-thin segmented counterweight frame for elevators according to claim 1, characterized in that: The number of mounting frames (1) is multiple, the multiple mounting frames (1) are distributed in the vertical direction, and adjacent two mounting frames (1) are detachably and fixedly connected.

8. The ultra-thin segmented counterweight frame for elevators according to claim 7, characterized in that: At least one partition bar (6) is connected to the mounting frame (1), and the partition bar (6) is vertically arranged. The partition bar (6) divides the inner cavity of the mounting frame (1) into two placement cavities. Both the mounting frame (1) and the partition bar (6) have mounting grooves (7). The end of the counterweight bar (2) extends into the mounting groove (7) and abuts against the mounting frame (1) and the partition bar (6) respectively.

9. The ultra-thin segmented counterweight frame for elevators according to claim 8, characterized in that: Pressure plate members (8) can be detachably connected to both the mounting frame (1) and the partition strip (6), and the pressure plate members (8) extend into the mounting strip groove (7).

10. The ultra-thin segmented counterweight frame for elevators according to claim 8, characterized in that: The mounting frame (1) and the partition strip (6) are both rotatably connected to a limiting plate (9) by a torsion spring. The limiting plate (9) is located in the mounting strip groove (7), and the rotation direction of the limiting plate (9) is set horizontally.

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