Chassis structure applied to super-large-load cargo elevator

Abstract

A chassis structure applied to an ultra-large load cargo elevator comprises two front chassis modules in bilateral symmetry and two rear chassis modules in bilateral symmetry, and the rear side of each front chassis module corresponds to the front side of one rear chassis module; according to the utility model, the front chassis module and the rear chassis module are regularly arranged, so that the orderly arranged lower beams on the cargo ladder frame can be better connected to the front chassis module and the rear chassis module, and the supporting force of the lower beams for supporting the front chassis module and the rear chassis module is ensured; therefore, the problem of poor connection between the splicing bottom plate and the car frame lower beam in the prior art is effectively solved, and the bearing capacity and the use safety of the goods elevator are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a chassis structure used for an ultra-large load freight elevator. Background Art

[0002] Freight elevators are important vertical transportation vehicles for transporting raw materials, parts, equipment and other goods in factories, supermarkets and other places. With the development of the economy, the number of freight elevators is increasing, and the load capacity is getting larger and larger, so the load-bearing capacity of freight elevators is very important. The chassis is the main component of the freight elevator that supports the goods, so the stability of the chassis is the decisive factor in measuring the quality of the freight elevator. In the design of oversized freight elevators, since the chassis is longer and wider, if the overall production method is adopted, it is easy to cause deformation problems, which in turn affects the load-bearing capacity and service life of the freight elevator.

[0003] In order to solve this problem, the existing technical solution (as shown in patent number 202011537236.0) proposes a chassis, which is composed of several spliced bottom plates that are spliced end to end and staggered left to right. Each spliced bottom plate includes a square fixed frame. A plurality of reinforcing ribs are provided inside the frame to enhance the structural strength, and the surface of the fixed frame is covered with a panel to provide a flat support surface. This technical solution divides the car bottom into multiple small spliced bottom plates. The spliced bottom plates are spliced end to end in the length direction and staggered in the width direction, so that each position of the car bottom is supported by a complete support beam of the fixed frame, which is not only convenient for manufacturing and transportation, but also improves the structural strength.

[0004] However, in order to facilitate coordination with the guide rails in the shaft, the freight elevator frame is composed of multiple car frames arranged longitudinally. However, due to the staggered distribution of the spliced base plate, the lower beams of each car frame of the freight elevator frame are difficult to effectively connect with the spliced base plate. It is easy for the lower beam to be connected only to the middle part or one end of the spliced base plate, thereby reducing the supporting force of the freight elevator frame on the spliced base plate. The lower beam cannot effectively support the weight of the spliced base plate and the goods on it, affecting the overall carrying capacity of the freight elevator. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a chassis structure for an ultra-large load freight elevator.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A chassis structure for an ultra-large freight elevator includes two bilaterally symmetrical front chassis modules and two bilaterally symmetrical rear chassis modules, wherein the rear side of each front chassis module corresponds to the front side of a rear chassis module; the front chassis module and the rear chassis module each include a load-bearing plate, a transverse splicing beam, a side connecting beam, a longitudinal splicing beam, and at least two intermediate longitudinal beams, wherein the ends of the transverse splicing beam are respectively connected to one end of the side connecting beam and the longitudinal splicing beam to form a U-shaped groove, and the at least two intermediate longitudinal beams are arranged in the U-shaped groove at intervals along the transverse direction;

[0008] The longitudinal splicing beams of the two front chassis modules and the longitudinal splicing beams of the two rear chassis modules are respectively fixedly connected by first bolts, and the transverse splicing beams of the front chassis modules and the transverse splicing beams of the rear chassis modules corresponding to the front and rear chassis modules are respectively fixedly connected by second bolts;

[0009] A plurality of transverse support members arranged at intervals along the longitudinal direction are fixedly connected between the adjacent left and right side connecting beams and the middle longitudinal beams, between the two adjacent left and right middle longitudinal beams, and between the adjacent left and right middle longitudinal beams and the longitudinal splicing beams; the tops of the transverse splicing beams, side connecting beams, longitudinal splicing beams, middle longitudinal beams and transverse support members are all fixedly connected to the bottom surface of the load-bearing plate.

[0010] In the present invention, a longitudinal groove is provided on one side of the transverse splicing beam, and one end of the intermediate longitudinal beam and the longitudinal splicing beam are both provided with a longitudinal connection part which is inserted into the longitudinal groove of the transverse splicing beam and fixedly connected to the transverse splicing beam by welding.

[0011] In the utility model, the bottoms of the longitudinal splicing beams, side connecting beams and middle longitudinal beams are each provided with at least two car frame connecting structures arranged along the longitudinal direction. The car frame connecting structures on the same horizontal line are correspondingly connected to a lower beam, and each of the car frame connecting structures includes at least two lower beam connecting holes arranged along the longitudinal direction.

[0012] In the present invention, the bottoms of the two front chassis modules are commonly connected to at least one front counterweight module, or / and the bottoms of the two rear chassis modules are commonly connected to at least one rear counterweight module.

[0013] In the present invention, a transverse connecting portion is provided at one end of the transverse supporting member, and a second slot is provided on one side of the longitudinal splicing beam and the middle longitudinal beam, and the transverse connecting portion is welded and fixed in the second slot.

[0014] In the present invention, the front ends of the side connecting beams, longitudinal splicing beams and middle longitudinal beams of each of the front chassis modules are commonly connected to a sill mounting plate.

[0015] In the present invention, the sill mounting plate includes a vertical folding edge and a horizontal folding edge connected in an L-shaped integral molding. The upper front end of the side connecting beam, the longitudinal splicing beam and the middle longitudinal beam are all provided with a supporting mounting groove. The supporting mounting groove includes a vertical limiting surface and a transverse supporting surface connected to the bottom of the front end of the vertical limiting surface. The horizontal folding edge is inserted into the supporting mounting groove and its bottom surface is connected to the transverse supporting surface. The rear side surface of the vertical folding edge is welded and fixed to the front end surface of the side connecting beam, the longitudinal splicing beam and the middle longitudinal beam. The vertical limiting surface and the top surface of the horizontal folding edge form a sill mounting avoidance position.

[0016] In the present invention, the rear ends of the side connecting beams, longitudinal splicing beams and middle longitudinal beams of each rear chassis module are welded together to form a rear cross beam.

[0017] In the present invention, in the front chassis module and the rear chassis module corresponding to each other, the bottoms of the front and rear adjacent middle longitudinal beams are commonly connected with longitudinal reinforcement pieces.

[0018] In the present invention, both the front and rear ends of the longitudinal reinforcement are provided with side connecting plates for connecting to the lower beam.

[0019] The beneficial effects of the present invention are as follows: the present invention forms a chassis structure through two left-right symmetrical front chassis modules and two left-right symmetrical rear chassis modules, so that the front chassis modules and the rear chassis modules are arranged regularly, so that the orderly arranged lower beams on the freight elevator frame can be better connected to the front chassis modules and the rear chassis modules, ensuring the supporting force of the lower beams supporting the front chassis modules and the rear chassis modules, thereby effectively solving the problem of poor connection between the spliced bottom plate and the lower beam of the car frame in the prior art, and improving the carrying capacity and safety of the freight elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 Three-dimensional chassis structure Figure 1 ;

[0022] Figure 2 The three-dimensional chassis structure Figure 2 ;

[0023] Figure 3 A three-dimensional image of the front chassis module with the load plate removed;

[0024] Figure 4 This is a three-dimensional diagram of the rear chassis module;

[0025] Figure 5 This is a schematic diagram of the installation of the sill mounting plate;

[0026] Figure 6 This is a schematic diagram of the chassis structure when it is on the freight elevator car;

[0027] Figure 7 Schematic diagram of the installation of longitudinal reinforcement. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] Reference Figure 1-7 A chassis structure for an extra-large load freight elevator includes two left-right symmetrical front chassis modules 100 and two left-right symmetrical rear chassis modules 200, the rear side of each front chassis module 100 corresponds to the front side of a rear chassis module 200; the front chassis module 100 and the rear chassis module 200 both include a load-bearing plate 1, a transverse splicing beam 2, a side connecting beam 3, a longitudinal splicing beam 4 and at least two intermediate longitudinal beams 5, the two ends of the transverse splicing beam 2 are respectively connected to one end of the side connecting beam 3 and the longitudinal splicing beam 4 and together form a U-shaped groove; at least two intermediate longitudinal beams 5 are arranged in the U-shaped groove at intervals along the transverse direction, and the side connecting beams 3, the longitudinal splicing beams 4 and the intermediate longitudinal beams 5 are arranged in parallel.

[0032] Furthermore, the longitudinal splicing beams 4 of the two front chassis modules 100 and the longitudinal splicing beams 4 of the two rear chassis modules 200 are fixedly connected by a first bolt, and the transverse splicing beams 2 of the front chassis modules 100 and the transverse splicing beams 2 of the rear chassis modules 200 corresponding to the front and rear are fixedly connected by a second bolt; a longitudinal groove 21 is provided on one side of the transverse splicing beam 2, and one end of the intermediate longitudinal beam 5 and the longitudinal splicing beam 4 are provided with a longitudinal connecting portion 541 which is inserted into the longitudinal groove 21 of the transverse splicing beam 2 and fixedly connected to the transverse splicing beam 2 by welding.

[0033] Furthermore, a plurality of transverse support members 6 arranged at intervals along the longitudinal direction are fixedly connected between the left and right adjacent side connecting beams 3 and the middle longitudinal beam 5, between the two left and right adjacent middle longitudinal beams 5, and between the left and right adjacent middle longitudinal beams 5 and the longitudinal splicing beam 4; the tops of the transverse splicing beam 2, the side connecting beam 3, the longitudinal splicing beam 4, the middle longitudinal beam 5 and the transverse support members 6 are all fixedly connected to the bottom surface of the load-bearing plate 1.

[0034] This embodiment forms a chassis structure by two left-right symmetrical front chassis modules 100 and two left-right symmetrical rear chassis modules 200, so that the front chassis modules 100 and the rear chassis modules 200 are arranged regularly, so that the orderly arranged lower beams 500 on the freight elevator frame can be better connected to the front chassis modules 100 and the rear chassis modules 200, ensuring the supporting force of the lower beams 500 supporting the front chassis modules 100 and the rear chassis modules 200, thereby effectively solving the drawbacks of the existing technology and improving the carrying capacity and safety of the freight elevator.

[0035] As a preferred embodiment, the bottoms of the longitudinal splicing beams 4, side connecting beams 3, and intermediate longitudinal beams 5 are each provided with at least two longitudinally aligned car frame connection structures, with the car frame connection structures on the same horizontal line correspondingly connected to a lower beam 500. Specifically, each of the car frame connection structures includes at least two longitudinally aligned lower beam connection holes for inserting lower beam bolts, which secure the front chassis module 100 and the rear chassis module 200 to the lower beam 500.

[0036] Since the chassis is used in freight elevators with extra-large loads, in order to ensure the stability of the elevator car when it is loaded with cargo, the weight of the counterweight is usually set to be relatively large. In order to prevent the main engine from slipping due to the lightness of the elevator car, the bottoms of the two front chassis modules 100 are commonly connected to at least one front counterweight module 300, or / and the bottoms of the two rear chassis modules 200 are commonly connected to at least one rear counterweight module 400. The front counterweight module 300 and the rear counterweight module 400 are used to increase the overall weight of the elevator car, improve the traction force, and ensure the stability of the freight elevator during operation. In addition, since the front counterweight module 300 is simultaneously connected to the two front chassis modules 100 and the rear counterweight module 400 is simultaneously connected to the two rear chassis modules 200, the combined stability between the two front chassis modules 100 and the two rear chassis modules 200 is improved, further improving the stability of the chassis structure.

[0037] As a preferred embodiment, at least one set of counterweight connection structures is provided at the bottom of the intermediate longitudinal beam 5, and the counterweight connection structure includes at least two counterweight connection holes arranged in the longitudinal direction. The counterweight connection holes are used to insert counterweight bolts, so that the counterweight bolts fix the front chassis module 100 and the rear chassis module 200 to the front counterweight module 300 and the rear counterweight module 400 respectively.

[0038] As a preferred embodiment, the side connecting beam 3, longitudinal splicing beam 4, middle longitudinal beam 5 and transverse splicing beam 2 are all made of channel steel of the same specification, and one end of the side connecting beam 3 is welded to the end of the transverse splicing beam 2 away from the longitudinal splicing beam 4 and is arranged to close one end of the longitudinal groove 21.

[0039] As a preferred embodiment, the transverse support member 6 is made of angle steel, and a transverse connecting portion 61 is provided at one end of the transverse support member 6. A second slot 450 is provided on one side of the longitudinal splicing beam 4 and the intermediate longitudinal beam 5. The transverse connecting portion 61 is welded and fixed in the second slot 450, thereby increasing the structural stability between the transverse support member 6 and the longitudinal splicing beam 4, and between the transverse support member 6 and the intermediate longitudinal beam 5.

[0040] As a preferred embodiment, an outer groove 30 is provided on one side of the side connecting beam 3. A plurality of longitudinally arranged diagonal rod mounting plates 7 are disposed within the outer groove 30 of the side connecting beam 3. Each diagonal rod mounting plate 7 is provided with diagonal rod mounting holes, through which a mounting shaft for connecting the diagonal rods is inserted. Furthermore, the side connecting beam 3 is provided with a plurality of diagonal rod mating through holes, each corresponding to a diagonal rod mounting hole on the diagonal rod mounting plate 7. The mounting shaft is inserted into the corresponding diagonal rod mating through holes and diagonal rod mounting holes, thereby improving the installation stability of the mounting shaft.

[0041] As a preferred embodiment, the front ends of the side connecting beams 3, longitudinal splicing beams 4 and middle longitudinal beams 5 of each front chassis module 100 are commonly connected to a sill mounting plate 101, and the sill mounting plates 101 on the two front chassis modules 100 are commonly used to mount the elevator sill.

[0042] In this embodiment, the sill mounting plate 101 includes a vertical folding edge 1011 and a horizontal folding edge 1012 that are connected in an L-shaped integral molding. The upper front end of the side connecting beam 3, the longitudinal splicing beam 4 and the middle longitudinal beam 5 are provided with a supporting mounting groove. The supporting mounting groove includes a vertical limiting surface 451 and a horizontal supporting surface 452 connected to the bottom of the front end of the vertical limiting surface 451. The horizontal folding edge 1012 is inserted into the supporting mounting groove and its bottom surface is connected to the horizontal supporting surface 452. The rear side of the vertical hem 1011 is welded to the front ends of the side connecting beams 3, longitudinal splicing beams 4, and middle longitudinal beams 5. The vertical limiting surface 451 and the top surface of the horizontal hem 1012 form a clearance for the sill installation, allowing the sill to be nearly flush with the top surface of the load-bearing plate 1 after installation. This structure also allows the side connecting beams 3, longitudinal splicing beams 4, and middle longitudinal beams 5 of the front chassis module 100 to directly support the sill with their front ends, improving the stability of the sill after installation. Furthermore, the vertical hem 1011 is used to mount the car door toe guard.

[0043] As a preferred embodiment, the rear ends of the side connecting beams 3 , longitudinal splicing beams 4 and middle longitudinal beams 5 of each rear chassis module 200 are welded together with a rear cross beam 201 , and the rear cross beam 201 is used to improve the structural stability of the rear chassis module 200 .

[0044] As a preferred embodiment, longitudinal reinforcements 8 are commonly connected to the bottoms of the adjacent front and rear longitudinal beams 5 in the corresponding front and rear chassis modules 100 and 200. These longitudinal reinforcements 8 are used to securely enhance the connection stability between the front and rear chassis modules 100 and 200. Side connecting plates 81 for connecting to the lower beams 500 are provided at both the front and rear ends of the longitudinal reinforcements 8. Each side connecting plate 81 is connected to a corresponding lower beam 500 and has side connecting holes for receiving bolts. This connection of the side connecting plates 81 to each lower beam 500 further enhances the connection stability between the front and rear chassis modules 100 and 200.

[0045] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the scope of protection of the present invention.

Claims

1. A chassis structure for an ultra-large freight elevator, characterized by: The invention comprises two left-right symmetrical front chassis modules (100) and two left-right symmetrical rear chassis modules (200), wherein the rear side of each front chassis module (100) corresponds to the front side of a rear chassis module (200); the front chassis module (100) and the rear chassis module (200) each comprise a load-bearing plate (1), a transverse splicing beam (2), a side connecting beam (3), a longitudinal splicing beam (4) and at least two intermediate longitudinal beams (5); the two ends of the transverse splicing beam (2) are respectively connected to one end of the side connecting beam (3) and the longitudinal splicing beam (4) and together enclose a U-shaped groove; and the at least two intermediate longitudinal beams (5) are arranged in the U-shaped groove at intervals along the transverse direction; The longitudinal splicing beams (4) of the two front chassis modules (100) and the longitudinal splicing beams (4) of the two rear chassis modules (200) are respectively fixedly connected using first bolts, and the transverse splicing beams (2) of the front chassis modules (100) and the transverse splicing beams (2) of the rear chassis modules (200) corresponding to the front and rear chassis modules are respectively fixedly connected using second bolts; A plurality of transverse support members (6) arranged at intervals in the longitudinal direction are fixedly connected between the adjacent left and right side connecting beams (3) and the middle longitudinal beam (5), between the two adjacent left and right middle longitudinal beams (5), and between the adjacent left and right middle longitudinal beams (5) and the longitudinal splicing beams (4); the tops of the transverse splicing beams (2), the side connecting beams (3), the longitudinal splicing beams (4), the middle longitudinal beams (5), and the transverse support members (6) are fixedly connected to the bottom surface of the load-bearing plate (1).

2. The chassis structure for an ultra-large load freight elevator according to claim 1, characterized in that: A longitudinal groove (21) is provided on one side of the transverse splicing beam (2), and one end of each of the intermediate longitudinal beam (5) and the longitudinal splicing beam (4) is provided with a longitudinal connecting portion (541) that is inserted into the longitudinal groove (21) of the transverse splicing beam (2) and fixedly connected to the transverse splicing beam (2) by welding.

3. The chassis structure for an ultra-large load freight elevator according to claim 1 is characterized in that: The bottoms of the longitudinal splicing beam (4), the side connecting beam (3) and the middle longitudinal beam (5) are each provided with at least two car frame connecting structures arranged in the longitudinal direction, the car frame connecting structures on the same horizontal line correspondingly connected to a lower beam (500), and each of the car frame connecting structures includes at least two lower beam connecting holes arranged in the longitudinal direction.

4. The chassis structure for an ultra-large load freight elevator according to claim 1 is characterized in that: The bottoms of the two front chassis modules (100) are commonly connected to at least one front counterweight module (300), or / and the bottoms of the two rear chassis modules (200) are commonly connected to at least one rear counterweight module (400).

5. The chassis structure for an ultra-large load freight elevator according to claim 1 is characterized in that: One end of the transverse support member (6) is provided with a transverse connecting portion (61), one side of each of the longitudinal splicing beam (4) and the intermediate longitudinal beam (5) is provided with a second slot (450), and the transverse connecting portion (61) is welded and fixed in the second slot (450).

6. The chassis structure for an ultra-large load freight elevator according to claim 1, characterized in that: The front ends of the side connecting beams (3), longitudinal splicing beams (4) and middle longitudinal beams (5) of each front chassis module (100) are commonly connected to a sill mounting plate (101).

7. The chassis structure for an ultra-large load freight elevator according to claim 6, characterized in that: The sill mounting plate (101) comprises a vertical folding edge (1011) and a horizontal folding edge (1012) connected in an L-shaped integral molding; the upper front ends of the side connecting beams (3), the longitudinal splicing beams (4) and the middle longitudinal beams (5) are all provided with supporting mounting grooves; the supporting mounting grooves comprise a vertical limiting surface (451) and a transverse supporting surface (452) connected to the bottom front end of the vertical limiting surface (451); the horizontal folding edge (1012) is inserted into the supporting mounting groove and its bottom surface is connected to the transverse supporting surface (452); the rear side surface of the vertical folding edge (1011) is welded and fixed to the front end surfaces of the side connecting beams (3), the longitudinal splicing beams (4) and the middle longitudinal beams (5); the top surfaces of the vertical limiting surface (451) and the horizontal folding edge (1012) form a sill mounting avoidance position.

8. The chassis structure for an ultra-large load freight elevator according to claim 1, characterized in that: The rear ends of the side connecting beams (3), longitudinal splicing beams (4) and middle longitudinal beams (5) of each rear chassis module (200) are welded together to form a rear cross beam (201).

9. The chassis structure for an ultra-large load freight elevator according to claim 1, characterized in that: In the front chassis module (100) and the rear chassis module (200) corresponding to the front and rear, the bottoms of the front and rear adjacent middle longitudinal beams (5) are commonly connected with a longitudinal reinforcement member (8).

10. The chassis structure for an ultra-large load freight elevator according to claim 9, characterized in that: Both front and rear ends of the longitudinal reinforcement (8) are provided with side connecting plates (81) for connecting to the lower beam (500).

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