Side machine room elevator

Abstract

The utility model relates to a side-arranged machine room elevator, in particular to a modified side-arranged machine room elevator which comprises an elevator shaft, a side-arranged machine room arranged on the top side portion of the elevator shaft, a new traction machine arranged in the side-arranged machine room, a lift car arranged in the elevator shaft and a machine room beam arranged between the top of the elevator shaft and the side-arranged machine room. The machine room beam comprises a main beam, a guide wheel bearing beam arranged on the main beam and a second bearing beam arranged between the main beam and a side machine room floor, the new traction machine is fixedly installed at the bottom of the main beam, a first guide wheel set and a second guide wheel set are correspondingly arranged on the guide wheel bearing beam, and the machine room beam further comprises a rope body wound on the new traction machine. One end of the rope body is wound around the first guide wheel set and then fixedly connected with the top of the lift car, and the other end of the rope body is wound around the second guide wheel set and then fixedly connected with the top of a counterweight. According to the side-arranged machine room elevator, replacement of an old traction system and stable installation of a new traction system are achieved, and meanwhile improvement of safety is emphasized.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a side-mounted machine room elevator. Background Art

[0002] Since the inorganic machine room products have completely replaced the product advantages of the original side-mounted machine room, there are no side-mounted machine room elevator products applied in the market currently. However, there are still a small number of side-mounted machine room products in the market. Considering the current situation of the hoistway, in order to meet the market requirements for renovating old elevators and a series of requirements such as cost and construction period, it is not appropriate to make excessive modifications to the elevator.

[0003] If it is renovated into an inorganic machine room elevator, due to different main machine layouts, hanging methods, etc., it will be necessary to replace or renovate the hoistway civil engineering, guide rails, counterweight, car, etc. The renovation construction time is long and the material cost is high.

[0004] If it is renovated according to the original machine room layout method, due to the current downward force mode of the main machine and the original upward pulling force mode of the main machine, the change in the main machine structure is too large, and the existing main machine cannot be used for renovation. The cost of developing a new structure main machine will increase, and it is difficult to recover the development cost.

[0005] If it is renovated into a normal small machine room elevator, the space directly above the elevator is not enough to arrange the main machine.

[0006] Therefore, there is an urgent need for a method for renovating a side-mounted machine room elevator and a structure of a side-mounted machine room elevator currently. Content of the Utility Model

[0007] The purpose of the utility model is to provide a side-mounted machine room elevator to solve the technical defects pointed out in the background art.

[0008] To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0009] A side-mounted machine room elevator is obtained by using the renovation method of the side-mounted machine room elevator. The renovated side-mounted machine room elevator includes an elevator hoistway, a side-mounted machine room arranged at the top side of the elevator hoistway, a new traction machine arranged in the side-mounted machine room, a car arranged in the elevator hoistway, and a machine room beam arranged between the top of the elevator hoistway and the side-mounted machine room. The machine room beam includes a main beam, a guide wheel bearing beam arranged on the main beam, and a second bearing beam arranged between the main beam and the floor of the side-mounted machine room. The new traction machine is fixedly installed at the bottom of the main beam. A first guide wheel group and a second guide wheel group are correspondingly arranged on the guide wheel bearing beam. A rope body is also included and wound around the new traction machine. One end of the rope body is wound around the first guide wheel group and then fixedly connected to the top of the car, and the other end is wound around the second guide wheel group and then fixedly connected to the top of the counterweight.

[0010] Further, the new traction machine is fixedly installed at the bottom of the main beam by inverting the mounting base. The bottom of the main beam is provided with a main machine base mounting hole and an anti-toppling mounting hole. The bottom of the mounting base is provided with a traction machine mounting hole for installing the new traction machine. The top of the mounting base is provided with a number of anti-vibration rubber pads for shock absorption. Four corners of the top of the mounting base horizontally extend inwards to form anti-toppling mounting plates. Anti-toppling bolts are vertically movably arranged on the anti-toppling mounting plates. A tightening nut is threadedly connected between the head of the anti-toppling bolt and the anti-toppling mounting plate. The anti-toppling nut, anti-toppling bolt and anti-toppling mounting hole cooperate to prevent the mounting base and the new traction machine from accidentally falling.

[0011] Further, both the first guide wheel set and the second guide wheel set are a pair of rope winding guide wheels. Both ends of the rope body are respectively wound around the first guide wheel set and the second guide wheel set to form a commutation.

[0012] Further, a counterweight compensation is provided between the bottom of the car and the bottom of the counterweight. A trailing cable is provided between the car and the elevator shaft.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model uses a new type of side-mounted machine room elevator and its layout structure to transform the old elevator, making the main machine inverted and stressed upwards, which is the same as the existing way of the main machine being upright and stressed downwards. The main structure of the main machine remains unchanged. Only the positions of the oil inlet and outlet of the main machine are changed, and the direction of the force acting on the main machine has not changed. There is no need to change the structure of the existing main machine, and the existing main machine can be used for transformation. This transformation method completely retains the old elevator machine room beam, making the transformation faster, more environmentally friendly and lower in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of the side-mounted machine room elevator before transformation of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the side-mounted machine room elevator after transformation of the present utility model;

[0018] Figure 3 It is a partial enlarged view of the present utility model;

[0019] Figure 4 It is a schematic structural diagram of the mounting base of the present utility model;

[0020] Figure 5 This is a schematic diagram of the transportation and installation structure of the new traction machine of the present utility model. Specific embodiments

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0023] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0025] Such as Figures 1-5As shown in the figure, a method for transforming a side-mounted machine room elevator is provided. The side-mounted machine room elevator before transformation includes an elevator hoistway, a side-mounted machine room arranged at the top side of the elevator hoistway, an old elevator traction machine 1 arranged in the side-mounted machine room, a car 2 arranged in the elevator hoistway, and a machine room beam arranged between the top of the elevator hoistway and the side-mounted machine room. The machine room beam includes a main beam 8, a guide wheel bearing beam 5 arranged on the main beam 8, and a traction machine bearing beam arranged between the main beam 8 and the floor of the side-mounted machine room. The traction machine bearing beam includes a first bearing beam 9 and a second bearing beam 10. The old elevator traction machine 1 is fixedly installed on the first bearing beam 9. A first guide wheel group 6 and a second guide wheel group 7 are correspondingly arranged on the guide wheel bearing beam 5. A rope body 3 is also included, which is wound around the old elevator traction machine 1. One end of the rope body 3 is wound around the first guide wheel group 6 and then fixedly connected to the top of the car 2, and the other end is wound around the second guide wheel group 7 and then fixedly connected to the top of the counterweight 4.

[0026] The method for transforming a side-mounted machine room elevator includes the following steps:

[0027] S1. Remove the old elevator traction machine 1 and the first bearing beam 9, and retain the rest of the machine room beam. Specifically, it includes the following steps:

[0028] Remove the old elevator traction machine 1: First, cut off the power supply of the old traction machine and disconnect it from the elevator control system. Subsequently, use professional tools to remove the fixing bolts or nuts on the traction machine, and carefully remove the traction machine from the traction machine bearing beam (the first bearing beam 9).

[0029] Remove the first bearing beam 9: After confirming that the traction machine has been completely removed, according to the structural characteristics of the machine room beam, use cutting or disassembly tools to remove the first bearing beam, while retaining other parts of the machine room beam, such as the main beam 8, the guide wheel bearing beam 5, and the second bearing beam 10, etc., for subsequent installation and use.

[0030] Step S1 creates space for the installation of the new traction machine and retains the original machine room beam structure, reducing the complexity of the transformation project.

[0031] S2. Drill the anti-toppling installation holes synchronously when drilling the main machine base installation holes at the bottom of the main beam 8; or, fixedly install a conversion bottom plate with main machine base installation holes and anti-toppling installation holes at the bottom of the main beam 8. Specifically, it includes the following steps:

[0032] Drill the installation holes: Drill the main machine base installation holes at a suitable position at the bottom of the main beam 8, and synchronously drill the anti-toppling installation holes as needed. These hole positions need to be accurately measured to ensure the stable installation of the main machine base.

[0033] Install the conversion bottom plate (optional): If the structure or material of the main beam 8 is not suitable for direct drilling and installation, you can choose to fixedly install a conversion bottom plate with main machine base installation holes and anti-toppling installation holes at the bottom of the main beam 8.

[0034] Step S2 provides a stable installation foundation for the new traction machine and adds an anti - tipping device to improve safety.

[0035] S3. Hoist and fixedly install the main machine base 14 at the bottom of the main beam 8; specifically, the main machine base 14 is fixedly installed through bolts and nuts. An anti - tipping bolt 17 that matches the anti - tipping installation hole is vertically arranged on the main machine base 14, and the anti - tipping nut 19 is tightened to make the connection of the main machine base 14 firm. The specific steps include the following:

[0036] Use hoisting equipment to hoist the main machine base 14 below the main beam 8 and fixedly install it at the bottom of the main beam 8 through bolts and nuts.

[0037] Vertically install the anti - tipping bolt 17 on the main machine base 14 and tighten the anti - tipping nut 19 to form a firm connection between the main machine base and the main beam.

[0038] Step S3 ensures that the main machine base is stable without shaking and provides a reliable support for the subsequent installation of the traction machine.

[0039] S4. Invert and hoist the new traction machine 13 and fixedly install it at the bottom of the main machine base 14; specifically, the new traction machine 13 is shipped to the site in an inverted state. The new traction machine 13 is fixedly installed in the transportation bracket 20 in an inverted state. After the new traction machine 13 is inverted and installed at the bottom of the main machine base 14, the transportation bracket 20 fixed on the new traction machine 13 is removed. The specific steps include the following:

[0040] The new traction machine 13 is shipped to the site in an inverted state and fixed in the transportation bracket 20. After the main machine base 14 is installed, use hoisting equipment to hoist the new traction machine together with the transportation bracket above the main machine base.

[0041] Carefully invert and install the new traction machine at the bottom of the main machine base 14 and release its fixed connection with the transportation bracket 20.

[0042] The new traction machine installed in an inverted state in step S4 can effectively utilize the machine room space and reduce the requirements for the height of the machine room.

[0043] When the main machine is inverted, the on - site operation of inverting the main machine is not conducive, and it is easy to damage the main machine components. Therefore, the inverted shipping operation is adopted, which is convenient for on - site hoisting. Develop a new inverted fixed transportation bracket for the main machine. The main machine is inverted and firmly installed at the factory and then packed and shipped, reducing the difficulties caused by poor on - site hoisting conditions for inverting the main machine and accidental damage to the main machine.

[0044] S5. Let the rope body 3 of the new traction machine 13 cooperate with the car 2 and the counterweight 4 to bear the force. After the rope body 3 is stressed, loosen the anti - fall nut 19 so that there is a distance of 8 mm between the head of the anti - fall bolt 17 and the anti - fall mounting plate 16, and tighten the tightening nut 18 to ensure that the new traction machine 13 will not fall even in case of an accident. The specific steps are as follows:

[0045] Wind the rope body 3 of the new traction machine 13 around the guide wheel set (the first guide wheel set 6 and the second guide wheel set 7), and fixedly connect it to the tops of the car 2 and the counterweight 4 respectively.

[0046] After the rope body 3 is stressed, appropriately loosen the anti - fall nut 19 to keep a certain distance (such as 8 mm) between the head of the anti - fall bolt 17 and the anti - fall mounting plate 16, and then tighten the tightening nut 18 to lock the position of the anti - fall bolt.

[0047] Step S5 ensures that the new traction machine remains stable and does not fall off during normal operation and in case of an accident, improving the safety of elevator operation.

[0048] The transformation method of the side - mounted machine room elevator of the present utility model realizes the replacement of the old traction system and the stable installation of the new traction system through fine demolition, installation and commissioning steps, and at the same time pays attention to the improvement of safety.

[0049] A side - mounted machine room elevator is obtained by using the transformation method of the side - mounted machine room elevator. The transformed side - mounted machine room elevator includes an elevator hoistway, a side - mounted machine room arranged at the top side of the elevator hoistway, a new traction machine 1 arranged in the side - mounted machine room, a car 2 arranged in the elevator hoistway, and a machine room beam arranged between the top of the elevator hoistway and the side - mounted machine room. The machine room beam includes a main beam 8, a guide wheel bearing beam 5 arranged on the main beam 8, and a second bearing beam 10 arranged between the main beam 8 and the floor of the side - mounted machine room. The new traction machine 1 is fixedly installed upside - down at the bottom of the main beam 8. Corresponding first guide wheel set 6 and second guide wheel set 7 are arranged on the guide wheel bearing beam 5. It also includes a rope body 3 wound around the new traction machine 1. One end of the rope body 3 is wound around the first guide wheel set 6 and then fixedly connected to the top of the car 2, and the other end is wound around the second guide wheel set 7 and then fixedly connected to the top of the counterweight 4.

[0050] Specifically, as shown in the figure, the new traction machine 1 is fixedly installed upside down on the bottom of the main beam 8 through the mounting base 14. The bottom of the main beam 8 is provided with a main machine base mounting hole and an anti-toppling mounting hole. The bottom of the mounting base 14 is provided with a traction machine mounting hole for installing the new traction machine 1. The top of the mounting base 14 is provided with a number of anti-vibration rubber pads 15 for shock absorption. The four corners of the top of the mounting base 14 are horizontally extended inward to form anti-toppling mounting plates 16. An anti-toppling bolt 17 is vertically movably arranged on the anti-toppling mounting plate 16. A tightening nut 18 is threadedly connected between the head of the anti-toppling bolt 17 and the anti-toppling mounting plate 16. The anti-toppling nut 19, the anti-toppling bolt 17 and the anti-toppling mounting hole cooperate to prevent the mounting base 14 and the new traction machine 1 from accidentally falling.

[0051] Since the main machine is installed upside down and suspended below the machine beam, before the wire rope is payed out, the main machine is affected by its own weight and is subject to a downward force. To ensure the installation safety of the main machine and prevent the anti-vibration rubber from being pulled and delaminated, an anti-toppling device for the main machine is added. Before the wire rope of the main machine is payed out, tighten the anti-toppling nut to ensure its firm connection. After the wire rope is installed and before the elevator runs normally, loosen the anti-toppling nut so that there is a distance L, about 8 mm, between the head of the anti-toppling bolt and the anti-toppling mounting plate, and lock the tightening nut to ensure that the main machine will not fall even in case of an accident.

[0052] Since the installation of the new main machine is different from that of the old elevator, in order to realize the installation of the main machine and its cooperation with the machine beam of the old elevator, a new main machine mounting chassis is added and fixed on the machine beam of the old elevator. It can be installed by drilling holes in the old elevator beam, or by welding a mounting plate with mounting holes on the old elevator beam for installation and connection.

[0053] Specifically, as shown in the figure, both the first guide wheel set 6 and the second guide wheel set 7 are a pair of rope winding guide wheels. The two ends of the rope body 3 are respectively wound around the first guide wheel set 6 and the second guide wheel set 7 to form a direction change. Due to the upward pulling force of the rope body 3 acting on the main machine, the guide wheel directly above the main machine is subject to an equal downward force of the rope body 3. The two forces are equal in magnitude and opposite in direction, canceling each other out, so that the force mainly acts on the beam and the frame connecting the wheel and the main machine, and there will be no excessive force transmitted to the civil engineering, making the transformation safer, requiring less for the machine room and hoistway, and the original machine beam structure can be retained with low cost.

[0054] Specifically, as shown in the figure, a counterweight compensation 11 is arranged between the bottom of the car 2 and the bottom of the counterweight 4. A trailing cable 12 is arranged between the car 2 and the elevator hoistway.

[0055] The present utility model uses a new side-mounted machine room elevator and its layout structure to transform an old elevator, making the main machine inverted and stressed upward. The main machine has the same downward stress mode as the existing main machine with a direct placement. The main structure of the main machine remains unchanged, only the positions of the oil inlet and outlet of the main machine are changed, and the direction of the force acting on the main machine remains unchanged. There is no need to change the structure of the existing main machine, and the existing main machine can be used for transformation. This transformation method completely retains the old elevator machine room beam, making the transformation faster, more environmentally friendly, and with lower costs.

[0056] Since the main machine is inverted and stressed upward, with the same downward stress mode as the existing main machine with a direct placement, the main structure of the main machine remains unchanged, only the positions of the oil inlet and outlet of the main machine are changed, and there is no need to re-develop the main machine, resulting in low costs.

[0057] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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 side-mounted machine room elevator, characterized in that, The side-mounted machine room elevator is obtained by means of transformation. The transformed side-mounted machine room elevator includes an elevator hoistway, a side-mounted machine room arranged at the top side of the elevator hoistway, a new traction machine (1) arranged in the side-mounted machine room, a car (2) arranged in the elevator hoistway, and a machine room beam arranged between the top of the elevator hoistway and the side-mounted machine room. The machine room beam includes a main beam (8), a guide wheel bearing beam (5) arranged on the main beam (8), and a second bearing beam (10) arranged between the main beam (8) and the floor of the side-mounted machine room. The new traction machine (1) is fixedly installed at the bottom of the main beam (8). A first guide wheel set (6) and a second guide wheel set (7) are correspondingly arranged on the guide wheel bearing beam (5). A rope body (3) wound around the new traction machine (1) is further included. One end of the rope body (3) is wound around the first guide wheel set (6) and then fixedly connected to the top of the car (2), and the other end is wound around the second guide wheel set (7) and then fixedly connected to the top of the counterweight (4).

2. The side machine room elevator according to claim 1, wherein, The new traction machine (1) is fixedly installed at the bottom of the main beam (8) in an inverted manner through an installation base (14). The bottom of the main beam (8) is provided with a main machine base installation hole and an anti-falling installation hole. The bottom of the installation base (14) is provided with a traction machine installation hole for installing the new traction machine (1). The top of the installation base (14) is provided with a plurality of anti-vibration rubber pads (15) for shock absorption. Anti-falling installation plates (16) are horizontally extended inward at the four corners of the top of the installation base (14). Anti-falling bolts (17) are vertically movably arranged on the anti-falling installation plates (16). A tightening nut (18) is threadedly connected between the head of the anti-falling bolt (17) and the anti-falling installation plate (16). The installation base (14) and the new traction machine (1) are prevented from accidentally falling through the cooperation of the anti-falling nut (19), the anti-falling bolt (17) and the anti-falling installation hole.

3. The side-mounted machine room elevator according to claim 2, characterized in that, Both the first guide wheel set (6) and the second guide wheel set (7) are a pair of rope winding guide wheels, and both ends of the rope body (3) are wound around the first guide wheel set (6) and the second guide wheel set (7) respectively to form a direction change.

4. A side-mounted machine room elevator according to claim 3, characterized in that, A counterweight compensation (11) is arranged between the bottom of the car (2) and the bottom of the counterweight (4). A trailing cable (12) is arranged between the car (2) and the elevator hoistway.

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