Car bottom wheel six-rail car frame combined mechanism of goods elevator without machine room

Abstract

The utility model discloses a car bottom wheel six-rail car frame combined mechanism of a goods elevator without a machine room, which is characterized in that a car frame comprises a main lower beam component positioned in the middle of the bottom of a car, and two auxiliary lower beam components which are symmetrically arranged by taking the main lower beam component as a center; main vertical beam assemblies are arranged at the two ends, perpendicular to the main lower beam assembly, of the main lower beam assembly respectively, auxiliary vertical beam assemblies are arranged at the two ends, perpendicular to the auxiliary lower beam assembly, of the auxiliary lower beam assembly respectively, and guide shoe safety tongs assemblies are arranged in the main vertical beam assemblies and the auxiliary vertical beam assemblies to be matched with six rails arranged in a hoistway in a one-to-one mode. A car bottom wheel assembly is arranged on the inner side of the auxiliary lower beam assembly through a high rope wheel frame and a low rope wheel frame. The phenomenon that people or objects in the lift car are injured due to overturning or falling of the traction machine without the machine room is avoided; the structure is reasonable, the occupied space of the bottom is reduced, the car bottom structure is simplified, the self weight of an elevator running part is reduced, and the safety, reliability and durability of the goods elevator are comprehensively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technology of lifting elevators, in particular to a car bottom wheel six-track car frame combination mechanism of a machine room-less freight elevator. Background Art

[0002] With the development of industry and investment limits higher than cost considerations, the proportion of freight elevators, especially machine roomless freight elevators, has also increased significantly due to the obvious advantages of machine roomless elevators, and their use effect and user experience are more prominent.

[0003] The traditional car top wheel structure is the same as that of general freight elevators, both of which adopt the upper beam car top wheel structure, with the main engine directly above the car. These structures pose elevator safety hazards and poor user experience; the car bottom wheels recorded in these products are mainly used as anti-ropes, not as the main rope wheels of the load-bearing car, and occupy a large space in the shaft height. Although the machine room-less freight elevator structure in the public technology is somewhat different, the setting of various auxiliary parts at the bottom of the car frame makes the operating part structure complex. For example, adding a car bottom rope wheel steel beam assembly on the basis of the conventional freight elevator structure significantly increases the cost, and also occupies a large space, is heavy, and wastes a lot of space, and does not bring space convenience for maintenance. For example, a machine room-less freight elevator car bottom wheel device with patent announcement number CN211687853U has bottom plates on both sides of the bottom of the elevator, a fixed bracket is arranged between the first beam and the second beam, a car bottom wheel is arranged on one side of the first beam, the car bottom wheel is fixed on the fixed bracket, a rope groove is arranged on the car bottom wheel, rope blocking rods are arranged on the side and bottom of the car bottom wheel, a steel wire rope is installed in the rope groove, a protective plate is installed at the bottom of the elevator car frame, a shock-absorbing pad is arranged between the bottom of the elevator car frame and the fixed bracket, the shock-absorbing pad includes an upper plate, a bottom plate and a buffer mechanism, and the upper plate, the buffer mechanism and the bottom plate are connected. Another example is the patent publication number CN211034817U, a machine room-less elevator car bottom wheel arrangement structure, including a car frame lower beam assembly and a car return rope pulley assembly, the car frame lower beam assembly includes a rope pulley device fixed beam weldment, two or more car frame lower beam bodies, and a connecting plate, the rope pulley device fixed beam weldment and the car frame lower beam body are fixed on the connecting plate, the car return rope pulley assembly includes a frame and a car return rope pulley arranged in the frame, the frame is mainly composed of two rope pulley frame weldments, a rope pulley frame connecting plate, a rope pulley side cover and a return rope pulley lower cover, and the rope pulley frame weldment is installed on the rope pulley device fixed beam weldment. And so on. Summary of the invention

[0004] The purpose of the utility model is to solve the above-mentioned problems and to provide a six-track car frame combination mechanism for a machine roomless freight elevator. The utility model utilizes the auxiliary lower beam assembly of the car frame itself to arrange the car wheel assembly. On the basis of ensuring the structural strength, safety, reliability and durability, it gives full play to the inherent advantages of the beam body, reduces the auxiliary weight, expands the bottom space less or not, and makes full use of the space.

[0005] The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a six-rail car frame combination mechanism of a car bottom wheel of a machine roomless freight elevator, including a car frame that constitutes the bottom support of the car and the upper, lower, left and right limiters, and its characteristic is that the car frame includes a main lower beam assembly located in the middle part of the bottom of the car, and two auxiliary lower beam assemblies are symmetrically arranged with the main lower beam assembly as the center; main vertical beam assemblies are respectively arranged at both ends of the main lower beam assembly perpendicular to the main lower beam assembly, and auxiliary vertical beam assemblies are respectively arranged at both ends of the auxiliary lower beam assembly perpendicular to the auxiliary lower beam assembly, and guide shoe safety clamp assemblies are arranged in the main vertical beam assembly and the auxiliary vertical beam assembly to cooperate with the six rails arranged in the hoistway.

[0006] A car bottom wheel assembly is arranged on the inner side of the auxiliary lower beam assembly through a high rope pulley frame and a low rope pulley frame.

[0007] In the aforementioned six-track car frame combination mechanism of the machine roomless freight elevator, preferably, the auxiliary lower beam assembly includes two parallel arranged channel steels, and the spacing between the two channel steels matches the width of the vertical beam provided in the auxiliary vertical beam assembly; the low rope pulley frame is positioned at the bottom of the inner channel steel of the two channel steels of the auxiliary lower beam assembly, and the high rope pulley frame is parallel to the low rope pulley frame and fixed on the base of the car.

[0008] In the aforementioned six-rail car frame combination structure of the car bottom wheel of the machine roomless freight elevator, preferably, car foot plates are provided on the bottom surfaces of the two channel steels at the matching position of the auxiliary lower beam assembly and the low rope pulley frame.

[0009] In the aforementioned six-rail car frame combination mechanism of the machine roomless freight elevator, preferably, a connector is provided between the high rope pulley frame and the low rope pulley frame, and the connector is located near the inner side of the rope pulley.

[0010] In the aforementioned six-rail car frame combination mechanism of a machine room-less freight elevator, preferably, a diagonal tie rod is provided between the main vertical beam assembly and the car bottom wheel assembly, the upper end of the diagonal tie rod is fixed to the upper section of the main vertical beam assembly, and the lower end of the diagonal tie rod is fixed to the base of the car.

[0011] In the aforementioned six-track car frame combination mechanism of the car bottom wheel of the machine roomless freight elevator, preferably, the wheel axle of the car bottom wheel assembly is positioned on the bottom surfaces of the high rope pulley frame and the low rope pulley frame through a U-shaped bolt seat.

[0012] In the aforementioned six-track car frame combination structure of the machine roomless freight elevator, preferably, a main upper beam assembly is provided in the middle part of the car frame above the car, a secondary upper beam assembly is provided at a position symmetrical to the main upper beam assembly and cooperating with the secondary vertical beam assembly, and upper cross beam assemblies are provided at both ends of the main upper beam assembly and the secondary upper beam assembly, respectively.

[0013] This technical solution is designed from the following aspects:

[0014] First, the car frame is the main design subject, and the six-track guide and medium-load elevator (Q≤5000kg, V≤1.2m / s) are the technical elements. The six-track guide is constructed in the way that the main lower beam component is matched with the main vertical beam component, and the auxiliary lower beam component is matched with the auxiliary vertical beam component. The main upper beam component, the auxiliary upper beam component and the upper cross beam component are distributed and improved according to the rectangular space layout, so that the overall car frame can fully meet the load-bearing requirements of the car. At the same time, the overall structural strength of the car frame is further guaranteed by the inclined rod.

[0015] The second is the setting of the car bottom wheel assembly: This solution is located on the inner side of the auxiliary lower beam assembly, that is, on the opposite side of the two sets of auxiliary lower beam assemblies, and the car bottom wheel assembly is set through a high rope pulley frame and a low rope pulley frame. The low rope pulley frame is fixed by the channel steel in the auxiliary lower beam assembly, and the high rope pulley frame is directly fixed on the car base, without the need to add a car bottom rope pulley steel beam assembly. Since the distance between the high rope pulley frame and the low rope pulley frame is only the horizontal space that can meet the installation of the rope pulley, it has a sufficient horizontal installation surface, so that the wheel shaft support surface is large, and the working torque of the rope pulley is easily guaranteed. After being fixed with the U-bolt seat, it has the standards of high stability and strong load-bearing capacity, and the number of parts is small, and no additional space is occupied downward.

[0016] The third is the design of the rope retaining plate of the car bottom wheel assembly: In addition to the connector between the high rope pulley frame and the low rope pulley frame, the top of the rope pulley is close to the bottom of the car base and can also serve as a rope retaining plate. It is not necessary to set up a special rope retaining plate to achieve the desired direction of rope retaining function. One thing has multiple uses, reducing redundancy and reducing equipment weight.

[0017] In other aspects, this device uses channel steel as the preferred beam material, and utilizes intermediate connectors, reinforcing rib plates, car foot plates and other lightweight, high-quality profile components to provide strong support for the overall strength of the car frame from the details, fully ensuring the safety, reliability and durability of the freight elevator, and can be widely used in medium-tonnage vertical freight elevators.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows: replacing the car top wheel with the car bottom wheel, the traction machine can be arranged between the car and the counterweight instead of directly above the car, thus avoiding the phenomenon of overturning or falling of the machine roomless traction machine causing damage to people or objects in the car; making full use of the existing auxiliary lower beam assembly of the car frame and other inherent structural configurations of the car frame to complete the installation of the car bottom wheel assembly, with a reasonable structure and full use, reducing the space occupied by the bottom, simplifying the car bottom structure, reducing the weight of the elevator running part itself, and fully ensuring the safety, reliability and durability of the freight elevator. The device is particularly suitable for machine roomless freight elevators with Q≤6000kg and V≤1.2m / s. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a main view structural diagram of an application state of the utility model.

[0020] Figure 2 yes Figure 1 Right view of .

[0021] Figure 3 yes Figure 1 Top view of the .

[0022] Figure 4 yes Figure 1 Schematic diagram of the local enlarged structure at M in the middle.

[0023] Figure 5 The utility model is a schematic diagram of the end structure of a secondary lower beam assembly.

[0024] Figure 6 The utility model is a schematic diagram of the structure of a car bottom wheel assembly.

[0025] Figure 7 yes Figure 6 Top view of the .

[0026] In the figure: 1-car bottom wheel assembly, 101-high rope pulley frame, 102-low rope pulley frame, 103-U-bolt seat, 104-ropes, 105-connector, 2-main lower beam assembly, 3-secondary lower beam assembly, 301-channel steel, 302-car footboard, 4-secondary vertical beam assembly, 5-diagonal tie rod, 6-main upper beam assembly, 7-main vertical beam assembly, 8-joining bar assembly, 9-upper cross beam assembly, 10-car frame fasteners, 11-car, 12-secondary upper beam assembly, 13-guide rails. DETAILED DESCRIPTION

[0027] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0028] This embodiment uses directional words such as up, down, left and right, where left and right refer to the left and right sides based on the door opening side of the car; the "assembly" mentioned in this case is used in accordance with the conventional technical terminology in the field, which includes various auxiliary parts that are conventionally fixed or connected or spare on the main body, such as the main lower beam assembly is a combination of channel steel beams, connecting plates, reinforcing ribs, spare holes, bolts and nuts.

[0029] See also Figures 1 to 3The present embodiment is a six-rail car frame combination mechanism of a machine room-less freight elevator, with a car frame constituting the bottom support of a car 11 and the upper, lower, left and right limit as the main body, the car frame includes a main lower beam assembly 2 located at the middle part of the bottom of the car 11, two auxiliary lower beam assemblies 3 are symmetrically arranged around the main lower beam assembly 2; main vertical beam assemblies 7 are respectively arranged at both ends of the main lower beam assembly 2 perpendicular to the main lower beam assembly 2, and auxiliary vertical beam assemblies 4 are respectively arranged at both ends of the auxiliary lower beam assembly 3 perpendicular to the auxiliary lower beam assembly 3, guide shoe safety clamp assemblies are arranged in the main vertical beam assembly 7 and the auxiliary vertical beam assembly 4, and six guide rails 13 arranged in the hoistway are arranged together. At the same time, a main upper beam assembly 6 is provided in the middle of the frame above the car 11, and a secondary upper beam assembly 12 is provided symmetrically with the main upper beam assembly 6 and in cooperation with the secondary vertical beam assembly 4. Upper cross beam assemblies 9 are provided at both ends of the main upper beam assembly 6 and the secondary upper beam assembly 12; a diagonal tie rod 5 is provided between the main vertical beam assembly 7 and the car bottom wheel assembly 1, and the upper end of the diagonal tie rod 5 is fixed to the upper section of the main vertical beam assembly 7, and the lower end of the diagonal tie rod 5 is fixed to the base of the car 11; the tops of the main vertical beam assembly 7 and the secondary vertical beam assembly 4 are respectively provided with a car frame fastener 10 made of channel steel. Thus, a complete car frame structure is formed.

[0030] The car 11 is supported by the main lower beam assembly 2 and the auxiliary lower beam assembly 3 and is contained in the space formed by the car frame.

[0031] The main lower beam assembly 2 includes two single channel steels arranged in parallel, and the main vertical beam assembly 7 includes a main channel steel, the width of the main channel steel is equal to the distance between the two single channel steels, and the three are connected by bolts. The slot of the main channel steel is used to install the connecting bar assembly 8, the upper end of the connecting bar assembly 8 is connected to the safety clamp linkage mechanism, and the lower end of the connecting bar assembly 8 is connected to the guide shoe safety clamp assembly located at the bottom end of the main lower beam assembly 2.

[0032] A car bottom wheel assembly 1 is provided on the inner side of the auxiliary lower beam assembly 3 through a high rope pulley frame 101 and a low rope pulley frame 102. Figure 4 As shown, the structure of the auxiliary lower beam assembly 3 is the same as that of the main lower beam assembly 2, including two parallel arranged channel steels 301, and the spacing between the two channel steels 301 matches the width of the vertical beam (also a channel steel) provided in the auxiliary vertical beam assembly 4. The low rope sheave frame 102 is positioned at the bottom of the inner channel steel of the two channel steels 301 of the auxiliary lower beam assembly 3, and the high rope sheave frame 101 is parallel to the low rope sheave frame 102 and is directly fixed on the base of the car 11.

[0033] Furthermore, a car foot plate 302 is provided on the bottom surface of the two channel steels 301 at the matching position of the auxiliary lower beam assembly 3 and the low rope sheave frame 102, so that the two channel steels 301 are connected as a whole. A connector 105 is provided between the high rope sheave frame 101 and the low rope sheave frame 102, and the connector is located at the inner side of the rope sheave 104 near the point, which can be used as a rope stopper. The wheel shaft of the car bottom wheel assembly 1 is positioned on the bottom surface of the high rope sheave frame 101 and the low rope sheave frame 102 through the U-bolt seat 103.

[0034] The arrangement of the car bottom wheel assembly 1 enables the traction machine to be installed between the car and the counterweight at the top of the hoistway. The counterweight anti-rope pulley is installed on the hoistway guide rail 13. One end of the wire rope is fixed to the rope head assembly at the top of the hoistway wall, and goes downward around the car bottom wheel assembly 1, then upward to the traction machine, and then reversely connected vertically to the counterweight.

[0035] The above embodiments are illustrations of the present invention, not limitations of the present invention. Without departing from the principles of the present technical solution, any equivalent changes or equivalent modifications made in accordance with the technical ideas proposed by the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A six-track car frame assembly mechanism for a machine room-less freight elevator, comprising a car frame constituting a bottom support of a car (11) and upper and lower left and right limit positions, characterized in that The car frame comprises a main lower beam assembly (2) located in the middle of the bottom of the car, and two auxiliary lower beam assemblies (3) are symmetrically arranged with the main lower beam assembly as the center; main vertical beam assemblies (7) are respectively arranged at both ends of the main lower beam assembly perpendicular to the main lower beam assembly, and auxiliary vertical beam assemblies (4) are respectively arranged at both ends of the auxiliary lower beam assembly perpendicular to the auxiliary lower beam assembly, and guide shoe safety clamp assemblies are arranged in the main vertical beam assembly and the auxiliary vertical beam assembly to cooperate with six rails arranged in the hoistway; A car bottom wheel assembly (1) is provided on the inner side of the auxiliary lower beam assembly via a high rope pulley frame (101) and a low rope pulley frame (102).

2. The six-rail car frame assembly mechanism of a machine room-less freight elevator according to claim 1 is characterized in that: The auxiliary lower beam assembly (3) comprises two parallel arranged channel steels (301), the spacing between the two channel steels matches the width of the vertical beam provided in the auxiliary vertical beam assembly (4); the low rope pulley frame (102) is positioned at the bottom of the inner channel steel of the two channel steels of the auxiliary lower beam assembly, and the high rope pulley frame (101) is parallel to the low rope pulley frame and fixed on the base of the car (11).

3. The six-rail car frame assembly mechanism of a machine room-less freight elevator according to claim 2 is characterized in that: A car footboard (302) is provided on the bottom surfaces of two channel steels at the matching position of the auxiliary lower beam assembly (3) and the lower rope pulley frame (102).

4. A six-rail car frame assembly mechanism for a machine room-less freight elevator according to claim 2 or 3, characterized in that: A connecting body (105) is provided between the high rope pulley frame (101) and the low rope pulley frame (102), and the connecting body is located at a near point inside the rope pulley (104).

5. A six-rail car frame assembly mechanism for a machine room-less freight elevator according to claim 1, 2 or 3, characterized in that An inclined tie rod (5) is provided between the main vertical beam assembly (7) and the car bottom wheel assembly (1), the upper end of the inclined tie rod is fixed to the upper section of the main vertical beam assembly, and the lower end of the inclined tie rod is fixed to the base of the car (11).

6. A six-rail car frame assembly mechanism for a machine room-less freight elevator according to claim 1, 2 or 3, characterized in that: The wheel axle of the car bottom wheel assembly (1) is positioned on the bottom surfaces of the high rope sheave frame (101) and the low rope sheave frame (102) through a U-shaped bolt seat (103).

7. A six-rail car frame assembly mechanism for a machine room-less freight elevator according to claim 1, 2 or 3, characterized in that: A main upper beam assembly (6) is provided in the middle of the car frame above the car (11), a secondary upper beam assembly (12) is provided at a position symmetrical to the main upper beam assembly and matched with the secondary vertical beam assembly (4), and upper cross beam assemblies (9) are provided at both ends of the main upper beam assembly and the secondary upper beam assembly.

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