Ultra-large load 4: 1 goods elevator

Abstract

An ultra-large load 4: 1 goods elevator comprises a goods elevator frame, the goods elevator frame comprises at least two car frames, a chassis located above car frame upper beams and a reinforcing frame located between the chassis and a longitudinal top beam, and each car frame comprises two car frame stand columns, a car frame upper beam connected with the upper ends of the two car frame stand columns and a car frame lower beam connected with the lower ends of the two car frame stand columns. The bottoms of the car frame upper beams of all the car frames are jointly connected with two longitudinal top beams; the bottom of the chassis is fixedly connected with the tops of the car frame lower beams of all the car frames, and the reinforcing frame is connected with all the stand columns. The car frame upper beams of all the car frames are connected together through the longitudinal top beams, then the chassis is fixed to the tops of the car frame lower beams of all the car frames, the car frame lower beams of all the car frames are combined and fixed together, then the car frame stand columns are reinforced through the reinforcing frames, and therefore the structural stability of the whole goods elevator frame is improved; and the whole goods elevator can bear higher load, and the use requirement of the super-large-load goods elevator is met.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an ultra-large load-bearing 4:1 freight elevator. Background Art

[0002] A freight elevator is an elevator device mainly used for cargo transportation and is widely used in various places where vertical transportation of cargo is required.

[0003] Referring to the super-large load freight elevator structure of patent number 202011537236.0, it includes a freight elevator frame composed of four groups of parallel car frames, and the bottom of the car frame is provided with car bottom wheels on both sides, and the bottom of the freight elevator frame is provided with a car bottom, and each group of car frames includes a pair of straight beams, and the upper ends of the two straight beams are provided with a car frame upper beam, and the lower ends of the two straight beams are provided with a car frame lower beam, and the bottom of the car frame lower beam is provided with a buffer plate, and a balance beam is provided in parallel on one side of the car frame lower beam, and the car bottom wheels are installed between the balance beam and the car frame lower beam through an axle wheel. The car frame upper beam is provided with a first reinforcing beam connecting the four groups of car frames, and the car frame lower beam is provided with a second reinforcing beam connecting the four groups of car frames, so as to improve the overall structural stability and strength of the super-large load freight elevator.

[0004] However, although this design meets the basic stability requirements to a certain extent, the first reinforcing beam is located in the middle of the upper beam of the car frame, and the second reinforcing beam is located in the middle of the lower beam of the car frame. Although this layout can increase the stability of the freight elevator to a certain extent, the left and right ends of the upper beam and the lower beam of the car frame mainly rely on straight beams for support and positioning, and lack of additional reinforcement measures, resulting in the structural stability of the freight elevator frame cannot meet higher load-bearing requirements. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides an extra-large load-bearing freight elevator.

[0006] The technical solution adopted by the present invention to solve its technical problem is: An extra-large load 4:1 freight elevator, comprising a freight elevator frame, the freight elevator frame comprising at least two car frames arranged from front to back, the car frame comprising two car frame columns, a car frame upper beam and a car frame lower beam, the left and right ends of the car frame upper beam are respectively connected to the upper ends of the two car frame columns, the left and right ends of the car frame lower beam are respectively connected to the lower ends of the two car frame columns, and the characteristic is that: the bottoms of the car frame upper beams of all the car frames are commonly connected to two longitudinal top beams, the two longitudinal top beams are respectively close to the two car frame columns, and each of the longitudinal top beams is provided with two car top return rope wheels distributed front and back; The freight elevator frame also includes a chassis located above the upper beam of the car frame and a reinforcement frame located between the chassis and the longitudinal top beam, the bottom of the chassis is fixedly connected to the top of the lower beams of all the car frames at the same time, the reinforcement frame includes a reinforced front cross beam and two longitudinal reinforcement beams, one of the longitudinal reinforcement beams is fixedly connected to the car frame columns of all the car frames on the left side at the same time, and the other longitudinal reinforcement beam is fixedly connected to the car frame columns of all the car frames on the right side at the same time, and the left and right ends of the reinforced front cross beam are respectively fixedly connected to the front ends of the two longitudinal reinforcement beams.

[0007] In the present invention, of the two car top return rope pulleys on each longitudinal top beam, the front car top return rope pulley is located just below the car frame upper beam of the frontmost car frame, and the rear car top return rope pulley is located just below the car frame upper beam of the rearmost car frame.

[0008] In the present invention, the longitudinal top beam includes two longitudinal top beam bodies which are symmetrically arranged on the left and right sides. The top of the longitudinal top beam body is fixedly connected to the bottom of the upper beam of the car frame, and a top wheel installation space for accommodating at least the car top return rope wheel part is formed between the two longitudinal top beam bodies.

[0009] In the present invention, the bottoms of the two longitudinal top beams are connected to a top wheel mounting shaft via U-bolts, the car top return rope pulley is rotatably mounted on the top wheel mounting shaft, and the upper end of the car top return rope pulley extends into the top wheel mounting space.

[0010] In the present invention, the longitudinal top beam body is made of channel steel, and a plurality of top beam reinforcing ribs arranged from front to back are provided on the groove of the longitudinal top beam body.

[0011] In the present invention, the bottoms of the two longitudinal top beams are simultaneously connected to car wheel covers, each car top return rope pulley corresponds to a car wheel cover, the interior of the car wheel cover is a lower accommodating space, and the lower part of the car top return rope pulley is located in the lower accommodating space.

[0012] In the present invention, a car wheel rope blocking assembly is provided on the car wheel cover, and the car wheel rope blocking assembly includes a car wheel rope blocking shaft corresponding to the front and rear sides of the car top return rope wheel and a car wheel lower rope blocking member corresponding to the lower side of the car top return rope wheel, the car wheel rope blocking shaft and the car wheel lower rope blocking member both extend into the lower accommodating space, and the car wheel rope blocking shaft and the car wheel lower rope blocking member are both installed on the car wheel cover with adjustable positions.

[0013] In the present invention, a car wall assembly is installed on the chassis, a car roof is installed on the top of the car wall assembly, and the chassis, the car wall assembly and the car roof are combined into a car with a bearing space.

[0014] The present invention also includes a traction rope, a counterweight device, a traction main machine, a first rope pulley seat, a second rope pulley seat and a traction machine seat, wherein a counterweight return rope pulley is provided on the top of the counterweight device, and the first rope pulley seat and the traction machine seat are both located above the freight elevator frame. The traction main machine is installed on the traction machine seat, and the traction main machine is provided with a traction wheel driven to rotate by it; the traction machine seat is provided with a car rope head assembly located above the car and a counterweight rope head assembly and a counterweight guide rope pulley located above the counterweight device, and the first rope pulley seat is provided with a car fixed rope pulley located above the freight elevator frame; the second rope pulley seat is at least partially located above the counterweight device, and the second rope pulley seat is provided with a counterweight fixed rope pulley, one end of the traction rope is fixed to the car rope head assembly, and the other end is wound around the car top return rope pulley, the car fixed rope pulley, the counterweight fixed rope pulley, the traction wheel and the counterweight guide rope pulley and then fixed to the counterweight rope head assembly.

[0015] The beneficial effects of the present invention are as follows: the upper beams of all car frames are connected together by two longitudinal top beams respectively close to two car frame columns, thereby improving the stability of the combined connection between the upper beams of the car frames, and then the chassis is used to fix the tops of the lower beams of all car frames, so that the lower beams of all car frames are combined and fixed together, and then the car frame columns are reinforced by using a reinforcement frame, thereby improving the structural stability of the entire freight elevator frame, so that the entire freight elevator can withstand a higher load and meet the use requirements of super-large load freight elevators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments: Figure 1 This is a three-dimensional diagram of the super-large load 4:1 freight elevator; Figure 2 It is a three-dimensional diagram of the cargo elevator frame; Figure 3 It is a three-dimensional diagram of the longitudinal top beam; Figure 4 This is the right side view of the freight elevator car; Figure 5 It is a three-dimensional diagram of the glue sticking device; Figure 6 This is a schematic diagram of the installation of the glue sticking device; Figure 7 This is a schematic diagram of the bottom structure of the freight elevator car; Figure 8 is a perspective view of the front chassis module; Fig. 9 is a three-dimensional diagram of the rear chassis module; Fig.10 is a cross-sectional view of the chassis; Fig.11 Installation diagram of the traction main engine Figure 1 ; Fig.12 Installation diagram of the traction main engine Figure 2 ; Fig.13 Three-dimensional counterweight device Figure 1 ; Fig.14 This is a schematic diagram of the installation of the counterweight fixing assembly; Fig.15 It is an exploded schematic diagram of the counterweight fixing assembly; Fig.16 Three-dimensional counterweight device Figure 2 ; Fig.17 This is a schematic diagram of the installation of the safety caliper brake mechanism; Fig.18 It is a schematic diagram of the cooperation between two safety caliper brake mechanisms; Fig.19 This is a schematic diagram of the installation of the long axis of the lifting mechanism; Fig. 20 This is a schematic diagram of the installation of the short shaft of the lifting mechanism; Fig.21 This is the installation diagram of the safety clamp action detection switch; Fig. 22 Schematic diagram of the winding of the traction rope. DETAILED DESCRIPTION

[0017] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] 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 indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the present invention, the descriptions of "first" or "second" etc. are only used 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 defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0020] Reference Figure 1-22 A super-large load 4:1 freight elevator, comprising a freight elevator frame 1, a traction rope 2, a counterweight device 3, a traction main machine 4, a first rope sheave seat 5, a second rope sheave seat 6 and a traction machine seat 7, the freight elevator frame 1 and the counterweight device 3 are both arranged in a hoistway; four car top return rope sheaves 10 are arranged on the top of the freight elevator frame 1, two sets of counterweight return rope sheaves are arranged on the top of the counterweight device 3, the first rope sheave seat 5 and the traction machine seat 7 are both located above the freight elevator frame 1, the traction main machine 4 is installed on the traction machine seat 7, and the traction main machine 4 is provided with a traction wheel 41 driven to rotate by the traction main machine 4; the traction machine seat 7 is provided with a car rope head assembly 7 located above the freight elevator frame 1 1 and a counterweight rope head assembly 72 and a counterweight guide rope sheave 73 located above the counterweight device 3, the first rope sheave seat 5 is provided with a car fixed rope sheave 51 located above the freight elevator frame 1; the second rope sheave seat 6 is at least partially located above the counterweight device 3, and a counterweight fixed rope sheave 61 is provided on the second rope sheave seat 6, one end of the traction rope 2 is fixed to the car rope head assembly 71, and the other end is wound around the car top return rope sheave 10, the car fixed rope sheave 51, the counterweight fixed rope sheave 61, the traction wheel 41, two groups of counterweight return rope sheaves and the counterweight guide rope sheave 73 and then fixed to the counterweight rope head assembly 72, thereby forming a driving layout with a traction ratio of 4:1. By rationally arranging the first sheave seat 5, the second sheave seat 6 and the traction machine seat 7 in the elevator machine room, and combining the labor-saving principle of the car fixed sheave 51 and the counterweight fixed sheave 61, the purpose of driving a large-load freight elevator is achieved by arranging a machine room structure with a traction ratio of 4:1, thereby reducing the production and manufacturing cost of the elevator machine room.

[0021] In this embodiment, multiple counterweight guide rails 100 and multiple car guide rails 200 are installed in the hoistway using guide rail brackets, the counterweight device 3 is slidably installed on the counterweight guide rails 100 through counterweight guide shoes, and the freight elevator frame 1 is slidably installed on the car guide rails 200 through car guide shoes.

[0022] In this embodiment, the cargo elevator frame 1 includes at least two car frames 11 arranged from front to back, and the car frames 11 are preferably four, and the car frame 11 includes two car frame columns 111, a car frame upper beam 112 and a car frame lower beam 113, the left and right ends of the car frame upper beam 112 are respectively connected to the upper ends of the two car frame columns 111, and the left and right ends of the car frame lower beam 113 are respectively connected to the lower ends of the two car frame columns 111, and the bottoms of the car frame upper beams 112 of all car frames 11 are commonly connected to two longitudinal top beams 114, and the two longitudinal top beams 114 are respectively close to the two car frame columns 111, and each of the longitudinal top beams 114 is provided with two car top return rope wheels 10 distributed front and back; Furthermore, the freight elevator frame 1 also includes a chassis 13 located above the car frame upper beam 112 and a reinforcement frame located between the chassis 13 and the longitudinal top beam 114, the bottom of the chassis 13 is also fixedly connected to the top of the car frame lower beam 113 of all the car frames 11, the reinforcement frame includes a reinforced front cross beam 116 and two longitudinal reinforcement beams 117, one of the longitudinal reinforcement beams 117 is also fixedly connected to the car frame columns 111 on the left side of all the car frames 11, and the other longitudinal reinforcement beam 117 is also fixedly connected to the car frame columns 111 on the right side of all the car frames 11, the left and right ends of the reinforced front cross beam 116 are respectively fixedly connected to the front ends of the two longitudinal reinforcement beams 117, so that the stability between the two longitudinal reinforcement beams 117 is improved.

[0023] As a preferred embodiment, of the two car top return rope pulleys 10 on each longitudinal top beam 114, the front car top return rope pulley 10 is located directly below the car frame upper beam 112 of the frontmost car frame 11, and the rear car top return rope pulley 10 is located directly below the car frame upper beam 112 of the rearmost car frame 11, so as to reduce the probability of deformation and bending of the position where the longitudinal top beam 114 is installed with the car top return rope pulley 10.

[0024] In this embodiment, the longitudinal top beam 114 includes two longitudinal top beam bodies 1141 that are symmetrically arranged on both sides, the top of the longitudinal top beam body 1141 is fixedly connected to the bottom of the car frame upper beam 112, and a top wheel installation space for accommodating at least part of the car top return rope pulley 10 is formed between the two longitudinal top beam bodies 1141. Further, the bottoms of the two longitudinal top beam bodies 1141 are commonly connected to a top wheel installation shaft through U-bolts, the car top return rope pulley 10 is rotatably installed on the top wheel installation shaft, and the upper end of the car top return rope pulley 10 extends into the top wheel installation space. Furthermore, the longitudinal top beam 1141 is made of channel steel, and the groove of the longitudinal top beam 1141 is provided with a plurality of top beam reinforcement ribs 1142 arranged from front to back. The longitudinal top beam 1141 has at least one top beam reinforcement rib 1142 at the position corresponding to the top wheel mounting shaft. The top beam reinforcement rib 1142 can increase the structural strength of the longitudinal top beam 1141, while stably installing the car top return rope pulley 10 on the longitudinal top beam 114, and improve the structural stability of the freight elevator frame 1.

[0025] In this embodiment, the bottoms of the two longitudinal top beams 1141 are simultaneously connected to a car wheel cover 1143, and each car top return rope pulley 10 corresponds to a car wheel cover 1143. The interior of the car wheel cover 1143 is a lower accommodating space, and the lower part of the car top return rope pulley 10 is located in the lower accommodating space. The car top return rope pulley 10 is accommodated and protected by the top wheel installation space and the lower accommodating space, which effectively reduces the probability of the car top return rope pulley 10 being damaged by foreign objects.

[0026] In this embodiment, a car wheel rope blocking assembly is provided on the car wheel cover 1143, and the car wheel rope blocking assembly includes a car wheel rope blocking shaft 1144 corresponding to the front and rear sides of the car top return rope wheel 10 and a car wheel lower rope blocking member 1145 corresponding to the lower side of the car top return rope wheel 10, and the car wheel rope blocking shaft 1144 and the car wheel lower rope blocking member 1145 are both extended into the lower accommodation space, and the car wheel rope blocking shaft 1144 and the car wheel lower rope blocking member 1145 are both installed on the car wheel cover 1143. The car wheel rope blocking assembly can prevent the traction rope 2 from escaping from the rope groove of the car top return rope wheel 10, thereby ensuring the stability of the movement of the freight elevator frame 1.

[0027] In this embodiment, a car wall assembly 118 is installed on the chassis 13, and a car roof 119 is installed on the top of the car wall assembly 118. The chassis 13, the car wall assembly 118 and the car roof 119 are combined into an elevator car with a carrying space, and the car wall assembly 118 located at the front end of the chassis 13 and / or at the rear end of the chassis 13 is provided with a car door for allowing people and goods to enter and exit the carrying space.

[0028] In this embodiment, each car frame column 111 corresponds to a glue device 12 installed on the car roof 119, and the glue device 12 includes a glue base 121 installed on the car roof 119, a set of fixed glue modules 122 and two adjustable glue modules 123 symmetrically arranged front and back. The fixed glue module 122 is fixed on the glue base 121 and faces the side of the car frame column 111 facing the car wall assembly 118; the two fixed glue modules 122 correspond to the front and rear sides of the car frame column 111 respectively. The fixed glue module 122 and the adjustable glue module 123 can effectively reduce the collision between the car frame column 111 and the car roof 119, reduce the noise and vibration during the operation of the freight elevator, and improve the riding comfort. Furthermore, the said rubber base 121 is provided with two rubber adjustment seats 124 that can be adjusted in front and back positions, and the two adjustable rubber modules 123 are respectively installed on the two rubber adjustment seats 124, so that the front and back adjustment of the adjustable rubber modules 123 can be achieved while the position of the rubber adjustment seats 124 is adjusted. Furthermore, the said rubber base 121 is provided with two groups of rubber front and back adjustment holes, each group of rubber front and back adjustment holes includes two rubber front and back adjustment long holes arranged from top to bottom, and the said rubber adjustment seat 124 is interspersed with two rubber locking bolts 125, and the screw section of each rubber locking bolt 125 passes through a rubber front and back adjustment long hole and is threadedly matched with a rubber locking nut 126 that fixes it, and loosening the rubber locking nut 126 can allow the rubber adjustment seat 124 to move forward and backward, thereby achieving position adjustment, so that the adjustable rubber module 123 can better cooperate with the car frame column 111.

[0029] The rubber base 121 and the rubber adjustment seat 124 are provided with two rubber fixing through holes, wherein the two rubber fixing through holes on the rubber base 121 are arranged from front to back, wherein the two rubber fixing through holes on the rubber adjustment seat 124 are arranged from top to bottom; the fixed rubber module 122 and the adjustable rubber module 123 each include two rubber modules 120, and the rubber modules 120 each include a rubber head 1201, a rubber head bolt 1202 and a rubber head nut 1203, wherein the rubber head 1201 is provided with a rubber head through hole extending axially therethrough, wherein the rubber head through hole is provided with a rubber receiving groove, and the head of the rubber head bolt 1202 is completely matched in the rubber receiving groove, wherein the screw section of the rubber head bolt 1202 of the fixed rubber module 120 passes through the rubber head through hole and a rubber fixing through hole and then is threadedly matched with a rubber head nut 1203 for fixing it.

[0030] In this embodiment, a tie rod mounting seat 115 is provided on the middle part of the car frame column 111, and a front lower diagonal tie rod 14 and a rear lower diagonal tie rod 15 are respectively provided at the front and rear ends of the tie rod mounting seat 115, wherein the front lower diagonal tie rod 14 is arranged to be inclined forward and downward, and the rear lower diagonal tie rod 15 is arranged to be inclined backward and downward, and the upper ends of the front lower diagonal tie rod 14 and the rear lower diagonal tie rod 15 are hinged on the tie rod mounting seat 115, and the lower ends are mounted on the chassis 13 through a lower tie rod rotating shaft.

[0031] Furthermore, a longitudinal top rod 17 is provided between two adjacent front and rear car frame columns 111, and the front and rear ends of the longitudinal top rod 17 are respectively connected to the pull rod mounting seats 115 of the two car frame columns 111. The longitudinal top rod 17 is used to constrain the distance between the two adjacent front and rear car frame columns 111, thereby reducing the probability of deformation and bending of the middle part of the car frame column 111.

[0032] Furthermore, the upper front end of the tie rod mounting seat 115 is matched with a front upper diagonal tie rod 18, and the front upper diagonal tie rod 18 is arranged to be inclined forward and upward. The lower end of the front upper diagonal tie rod 18 is hinged on the tie rod mounting seat 115, and the upper end is installed on the longitudinal reinforcement beam 117 through an upper tie rod rotating shaft.

[0033] Furthermore, a rear upper inclined tie rod 19 is provided on the rear end of the front three tie rod mounting seats 115, and the rear upper inclined tie rod 19 is arranged to tilt backward and upward, and the lower end of the rear upper inclined tie rod 19 is hinged on the tie rod mounting seat 115, and the upper end is installed on the longitudinal reinforcement beam 117 by an upper tie rod rotating shaft; By providing the front lower diagonal rod 14, the rear lower diagonal rod 15, the longitudinal top rod 17, the front upper diagonal rod 18 and the rear upper diagonal rod 19, the connection strength between the various car frames 11 can be effectively improved, thereby enhancing the structural stability of the freight elevator frame 1, so that the entire freight elevator can withstand a higher load and meet the use requirements of an extra-large load freight elevator.

[0034] As a preferred embodiment, the front lower diagonal tie rod 14, the rear lower diagonal tie rod 15, the front upper diagonal tie rod 18 and the rear upper diagonal tie rod 19 all include a tie rod body and a diagonal tie screw fixed on one end of the tie rod body, the other end of the tie rod body is provided with a tie rod hinge hole, the tie rod mounting seat 115 is provided with a tie rod matching hole corresponding to the tie rod hinge hole, the screw end of the tie rod fixing bolt passes through the tie rod hinge hole and the tie rod matching hole and is threadedly sleeved with a first tie rod locking nut; tighten the first tie rod locking nut After that, the tie rod body cannot move; after loosening the first tie rod locking nut, the tie rod body can swing at an angle to meet the installation requirements; the upper tie rod mounting shaft and the lower tie rod mounting shaft are both provided with tie rod insertion holes, and the tie rod screw section passes through the tie rod insertion hole and is threadedly sleeved with a second tie rod locking nut for fixing the tie rod screw, and the tensioning force of the front lower diagonal tie rod 14, the rear lower diagonal tie rod 15, the front upper diagonal tie rod 18 and the rear upper diagonal tie rod 19 can be adjusted by twisting the second tie rod locking nut.

[0035] As a preferred embodiment, the chassis 13 includes two left-right symmetrical front chassis modules 131 and two left-right symmetrical rear chassis modules 132, and the rear side of each front chassis module 131 corresponds to the front side of a rear chassis module 132; the front chassis module 131 and the rear chassis module 132 both include a load-bearing plate 133, a chassis transverse splicing beam 134, a chassis side connecting beam 135, a chassis longitudinal splicing beam 136 and at least two chassis intermediate longitudinal beams 137, and the two ends of the chassis transverse splicing beam 134 are respectively connected to one end of the chassis side connecting beam 135 and the chassis longitudinal splicing beam 136 and together enclose a U-shaped groove; at least two chassis intermediate longitudinal beams 137 are arranged in the U-shaped groove at intervals along the transverse direction, and the chassis side connecting beam 135, the chassis longitudinal splicing beam 136 and the chassis intermediate longitudinal beam 137 are arranged in parallel. The bottoms of the chassis longitudinal splicing beam 136 , the chassis side connecting beam 135 and the chassis middle longitudinal beam 137 are all fixed to the car frame lower beam 113 by bolt connection, thereby completing the purpose of installing the chassis 13 on the car frame lower beam 113 .

[0036] Furthermore, the chassis longitudinal splicing beams 136 of the two front chassis modules 131 and the chassis longitudinal splicing beams 136 of the two rear chassis modules 132 are respectively fixedly connected by a first bolt, and the chassis transverse splicing beams 134 of the front chassis module 131 and the chassis transverse splicing beams 134 of the rear chassis module 132 corresponding to the front and rear are respectively fixedly connected by a second bolt; a chassis longitudinal groove 1341 is provided on one side of the chassis transverse splicing beam 134, and one end of the chassis intermediate longitudinal beam 137 and the chassis longitudinal splicing beam 136 are both provided with a chassis longitudinal connecting portion 1301 which is inserted into the chassis longitudinal groove 1341 of the chassis transverse splicing beam 134 and fixedly connected to the chassis transverse splicing beam 134 by welding.

[0037] Furthermore, a plurality of transverse support members 138 arranged at intervals in the longitudinal direction are fixedly connected between the left and right adjacent chassis side connecting beams 135 and the chassis middle longitudinal beams 137, between the two left and right adjacent chassis middle longitudinal beams 137, and between the left and right adjacent chassis middle longitudinal beams 137 and the chassis longitudinal splicing beams 136; the tops of the chassis transverse splicing beams 134, the chassis side connecting beams 135, the chassis longitudinal splicing beams 136, the chassis middle longitudinal beams 137 and the transverse support members 138 are fixedly connected to the bottom surface of the load-bearing plate 133.

[0038] In this embodiment, the chassis 13 is composed of two left-right symmetrical front chassis modules 131 and two left-right symmetrical rear chassis modules 132, so that the front chassis modules 131 and the rear chassis modules 132 are arranged regularly, so that the orderly arranged lower frame beams 113 on the freight elevator frame 1 can be better connected to the front chassis modules 131 and the rear chassis modules 132, ensuring the supporting force of the lower frame beams 113 to support the front chassis modules 131 and the rear chassis modules 132, thereby improving the carrying capacity and safety of the freight elevator.

[0039] In this embodiment, at least one front counterweight module 1311 is commonly connected to the bottom of the two front chassis modules 131, and the front counterweight module 1311 is connected to the chassis middle longitudinal beam 137 of the two front chassis modules 131 by bolt connection, or / and at least one rear counterweight module 1321 is commonly connected to the bottom of the two rear chassis modules 132, and the rear counterweight module 1321 is connected to the chassis middle longitudinal beam 137 of the two rear chassis modules 132 by bolt connection; the front counterweight module 1311 and the rear counterweight module 1321 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 1311 is simultaneously connected to the two front chassis modules 131 and the rear counterweight module 1321 is simultaneously connected to the two rear chassis modules 132, the combined stability between the two front chassis modules 131 and the two rear chassis modules 132 is improved, and the stability of the chassis 13 is further improved.

[0040] As a preferred embodiment, a transverse connecting portion 1381 is provided at one end of the transverse support member 138, and a second slot 1302 is provided on one side of the chassis longitudinal splicing beam 136 and the chassis middle longitudinal beam 137. The transverse connecting portion 1381 is welded and fixed in the second slot 1302, thereby increasing the structural stability between the transverse support member 138 and the chassis longitudinal splicing beam 136, and between the transverse support member 138 and the chassis middle longitudinal beam 137.

[0041] As a preferred embodiment, one side of the chassis-side connecting beam 135 is provided with an outer groove, and a plurality of inclined rod mounting plates 1351 arranged in the longitudinal direction are provided in the outer groove of the chassis-side connecting beam 135, and an inclined rod mounting hole is provided on the inclined rod mounting plate 1351, and the lower tie rod rotating shaft is inserted in the inclined rod mounting hole. Further, a plurality of inclined rod matching through holes are provided on the chassis-side connecting beam 135, and each inclined rod matching through hole corresponds to an inclined rod mounting hole on the inclined rod mounting plate 1351, and the lower tie rod rotating shaft is inserted in the corresponding inclined rod matching through hole and the inclined rod mounting hole, so as to improve the installation stability of the lower tie rod rotating shaft.

[0042] As a preferred embodiment, the front ends of the chassis side connecting beam 135, the chassis longitudinal splicing beam 136 and the chassis middle longitudinal beam 137 of each of the front chassis modules 131 are commonly connected to a sill mounting plate 139, and the sill mounting plates 139 on the two front chassis modules 131 are commonly installed with the elevator sill 130 and the car door foot guard.

[0043] As a preferred embodiment, the rear ends of the chassis side connecting beam 135 , the chassis longitudinal splicing beam 136 and the chassis middle longitudinal beam 137 of each of the rear chassis modules 132 are welded together with a rear cross beam 1322 , and the rear cross beam 1322 is used to improve the structural stability of the rear chassis module 132 .

[0044] As a preferred embodiment, in the front chassis module 131 and the rear chassis module 132 corresponding to each other, the bottoms of the front and rear adjacent chassis intermediate longitudinal beams 137 are commonly connected with longitudinal reinforcements 1371, and the longitudinal reinforcements 1371 are used to fix and enhance the connection stability between the front chassis module 131 and the rear chassis module 132. The front and rear ends of the longitudinal reinforcements 1371 are provided with side connecting plates for connecting the lower beams 113 of the car frame, and each side connecting plate is connected to a corresponding lower beam 113 of the car frame by bolt connection, so that the connection stability between the front chassis module 131 and the rear chassis module 132 is further improved by using the side connecting plates to connect to a corresponding lower beam 113 of the car frame.

[0045] As a preferred embodiment, a safety clamp braking mechanism is provided on the two car frames 11, and the safety clamp braking mechanism includes two elevator safety clamps 81 and a safety clamp linkage mechanism for linking the two elevator safety clamps 81 to act synchronously, and the two elevator safety clamps 81 are respectively installed on the two car frame columns 111 of the corresponding car frame 11, and the safety clamp linkage mechanism is installed on the car frame lower beam 113 of the corresponding car frame 11; the safety clamp linkage mechanism includes a lifting mechanism long axis 82, a lifting mechanism short axis 83, a lifting mechanism arm 84, a lifting linkage rod 85 and two safety clamp linkage arms 86, and the lifting mechanism long axis 82 and the lifting mechanism short axis 83 are respectively rotatably installed on the two ends of the car frame lower beam 113, and the lifting mechanism arm 84 is installed on the lifting mechanism At one end of the long axis 82, the pulling mechanism arm 84 is used to connect the speed limiter rope of the speed limiter. When the freight elevator is abnormal, the speed limiter is activated to make the rope clamp clamp the speed limiter rope. As the freight elevator frame 1 continues to move, the speed limiter rope is linked to the pulling mechanism arm 84 to drive the long axis 82 of the pulling mechanism to rotate, so that the safety clamp brake mechanism works; each safety clamp linkage arm 86 cooperates and connects to control the action of an elevator safety clamp 81. The two safety clamp linkage arms 86 are respectively installed on the long axis 82 of the pulling mechanism and the short axis 83 of the pulling mechanism. One of the safety linkage arms is driven to rotate by the long axis 82 of the pulling mechanism, and the other safety clamp linkage arm 86 is driven to rotate by the short axis 83 of the pulling mechanism. The long axis 82 of the pulling mechanism is connected to drive the short axis 83 of the pulling mechanism to rotate through the lifting linkage rod 85. A brake synchronization linkage rod 87 that allows the two safety clamp brake mechanisms to work synchronously is connected between the long axes 82 of the pulling mechanisms of the two safety clamp brake mechanisms.

[0046] Furthermore, the safety clamp linkage arm 86 includes a safety clamp linkage sleeve 861 and a safety clamp linkage part 862. The safety clamp linkage sleeve 861 located on the long axis 82 of the lifting mechanism is sleeved on the long axis 82 of the lifting mechanism and is fixedly connected to the long axis 82 of the lifting mechanism. The safety clamp linkage sleeve 861 located on the short axis 83 of the lifting mechanism is sleeved on the short axis 83 of the lifting mechanism and is fixedly connected to the short axis 83 of the lifting mechanism. One end of the safety clamp linkage part 862 is fixedly arranged on the safety clamp linkage sleeve 861, and the other end is integrally provided with two safety clamp connecting parts 863. The two safety clamp connecting parts 863 are respectively connected and cooperated with the two clamp blocks of the elevator safety clamp 81, so that when the safety clamp linkage arm 86 is actuated, the two clamp blocks of the elevator safety clamp 81 can be linked to actuate, thereby realizing emergency braking. The safety clamp connection part 863 is provided with a safety clamp linkage oblong hole, and the clamp block of the elevator safety clamp 81 is provided with a clamp block linkage member for inserting into the safety clamp linkage oblong hole. When the safety clamp connection part 863 is actuated, the clamp block linkage member can be linked to drive the clamp block of the elevator safety clamp 81 to actuate.

[0047] In this embodiment, a brake connecting hole is provided in the brake synchronous linkage rod 87 for inserting the other end of the lifting mechanism long axis 82. After the other end of the lifting mechanism long axis 82 is inserted into the brake connecting hole, it is fixed by bolt connection or welding, so that the lifting mechanism long axis 82 and the brake synchronous linkage rod 87 are fixed together.

[0048] In this embodiment, the lifting linkage rod 85 includes a left brake strut 851, a right brake strut 852 and a strut connecting long nut 853, the left brake strut 851 includes a left strut hinge seat at one end thereof and a left strut screw segment at the other end thereof, the right brake strut 852 includes a right strut hinge seat at one end thereof and a right strut screw segment at the other end thereof, a left strut rocker arm 821 driven to rotate by the lifting mechanism long axis 82 is fixedly installed, and the left strut rocker arm 821 is hinged to the left strut hinge seat at one end away from the lifting mechanism long axis 82; a right strut rocker arm 831 driven to rotate by the lifting mechanism is fixedly installed on the lifting mechanism short axis 83, and the right strut rocker arm 831 is hinged to the left strut hinge seat at one end thereof The end is hinged with the right support rod hinge seat; the two ends of the support rod connecting long nut 853 are respectively provided with a first screw hole and a second screw hole extending along the axial direction, the thread rotation direction of the first screw hole and the thread rotation direction of the second screw hole are opposite, and at least part of the thread of the left support rod screw segment is adapted to the first screw hole, and at least part of the thread of the right support rod screw segment is fitted in the second screw hole; by rotating the support rod connecting long nut 853, the left brake support rod 851 and the right brake support rod 852 can be moved toward and away from each other to adjust the distance between the left brake support rod 851 and the right brake support rod 852, thereby changing the length of the brake synchronization linkage rod 85, so as to better synchronize the two safety clamp linkage arms 86 of the same safety clamp linkage mechanism.

[0049] In this embodiment, the car frame lower beam 113 includes two front-to-rear symmetrical car frame lower beam bodies 1131, the length of the left brake strut 851 is greater than the length of the right brake strut 852, and the safety clamp braking mechanism also includes at least one strut supporting member 88, the strut supporting member 88 is installed on one of the car frame lower beam bodies 1131, and the strut supporting member 88 is provided with a strut bracket groove for the left brake strut 851 to pass through, and the strut supporting member 88 is used to support the left brake strut 851 to avoid the problem of the left brake strut 851 being too long and bending.

[0050] In this embodiment, two lifting shaft seats 89 are mounted on the lifting mechanism long shaft 82 and the lifting mechanism short shaft 83, and the two lifting shaft seats 89 are fixedly mounted on the two car frame lower beam bodies 1131 of the car frame lower beam 113, and the lifting mechanism long shaft 82 and the lifting mechanism short shaft 83 can both rotate relative to the lifting shaft seats 89; a car frame column groove is provided on the side of the car frame column 111 facing away from the chassis 13, and the elevator safety clamp 81 is located in the car frame column groove, and a safety clamp linkage port connected to the car frame column groove is provided on the side of the car frame column 111 facing the chassis 13, and the safety clamp connecting part 863 passes through the safety clamp linkage port and enters the car frame column groove, so as to cooperate with the elevator safety clamp 81.

[0051] In this embodiment, the safety clamp brake mechanism further includes a support rod reset seat 801, which is installed on one of the lower beams 1131 of the car frame. The support rod reset seat 801 is provided with a support rod reset through hole for the left brake support rod 851 to pass through. The left brake support rod 851 is sleeved with a support rod reset spring 854, and the left support rod screw section is threaded with a support rod reset nut 855. The two ends of the support rod reset spring 854 are respectively limited by the support rod reset seat 801 and the support rod reset nut 855. After the lifting linkage rod 85 is actuated, the support rod reset spring 854 drives the lifting linkage rod 85 to reset.

[0052] As a preferred embodiment, the safety clamp braking mechanism also includes a safety clamp action detection switch 802, which is installed on one side of the lower beam 1131 of the car frame using a safety clamp detection seat, and a safety clamp detection matching wheel 831 is provided on the short shaft 83 of the safety clamp linkage lifting mechanism, which is driven by it to rotate synchronously, and a detection avoidance recess is provided on the outer circumferential surface of the safety clamp detection matching wheel 831. When the monitoring pressing end of the safety clamp action detection switch 802 extends into the detection avoidance recess, the safety clamp action detection switch 802 does not send a safety clamp action signal; when the short shaft 83 of the safety clamp linkage lifting mechanism rotates and drives the safety clamp linkage arm 86 to move, the safety clamp detection matching wheel 831 rotates synchronously and presses the monitoring pressing end of the safety clamp action detection switch 802, so that the safety clamp action detection switch 802 sends a control safety clamp action signal to the elevator control cabinet that controls the operation of the elevator, so that the elevator control cabinet sends an alarm to the outside and controls the traction main machine 4 to stop.

[0053] As a preferred embodiment, the bottom of the second sheave seat 6 and the traction machine seat 7 are commonly connected with at least two first cushion beams 671, and the first cushion beams 671 connect the second sheave seat 6 and the traction machine seat 7 together, so that the second sheave seat 6 and the traction machine seat 7 are positioned relative to each other, thereby improving the installation quality therebetween.

[0054] The traction machine seat 7 includes a traction frame 74, a side load-bearing beam 75 and two adjacent main load-bearing beams 76, wherein the side load-bearing beam 75 and the two main load-bearing beams 76 are parallel to each other and spaced apart, and the bottom of the traction frame 74 is fixedly connected to the tops of the side load-bearing beam 75 and the two main load-bearing beams 76 by bolt connection, wherein a main rope threading opening is formed between the two main load-bearing beams 76, and the interior of the traction frame 74 is a frame rope threading opening corresponding to the main rope threading opening. The traction main machine 4 is mounted on the traction frame 74, and the traction wheel 41 is facing the frame rope threading opening, and the main rope threading opening and the frame rope threading opening are both configured to allow the traction rope 2 to pass through.

[0055] The tops of the two main load-bearing beams 76 are connected to two rope end mounting seats 77 by welding. The traction frame 74 is located between the two rope end mounting seats 77. The car rope end assembly 71 and the counterweight rope end assembly 72 are respectively mounted on the two rope end mounting seats 77. The rope end mounting seats 77 are mounted on the two main load-bearing beams 76, which can not only realize the installation of the car rope end assembly 71 and the counterweight rope end assembly 72, but also can use the rope end mounting seats 77 to fix the distance between the two main load-bearing beams 76, improve the structural stability of the two main load-bearing beams 76, and thus improve the installation quality of the traction main machine 4, the car rope end assembly 71 and the counterweight rope end assembly 72. In this embodiment, the rope end mounting seat 77 includes rope end channel steels on both sides and a rope end plate spanning the tops of the two rope end channel steels. The rope end channel steels are fixed on the main load-bearing beams 76, and the rope end plate is used to install the car rope end assembly 71 and the counterweight rope end assembly 72.

[0056] The second sheave seat 6 is composed of two counterweight bearing beams 62 arranged at intervals, and a counterweight rope threading opening for the traction rope 2 to pass through is formed between the counterweight bearing beams 62. The two ends of the wheel axle of the counterweight fixed rope sheave 61 are respectively fixedly mounted on the two counterweight bearing beams 62, and the lower end of the wheel body of the counterweight fixed rope sheave 61 is inserted into the counterweight rope threading opening; there are two first cushion beams 671 and they are arranged at intervals on the left and right. The bottom of the first cushion beam 671 is fixedly connected to the bottom of the side bearing beam 75, the two main bearing beams 76 and the two counterweight bearing beams 62 by welding, so that the second sheave seat 6 and the traction machine seat 7 are integrated into one body for easy installation. The bottom of the side bearing beam 75 and the two adjacent main bearing beams 76 are also welded with a side cushion beam 672 located at the bottom of the right end of the traction machine seat 7. The side cushion beam 672 is used to further strengthen the installation quality of the side bearing beam 75 and the two main bearing beams 76.

[0057] As a preferred embodiment, the first sheave seat 5 includes at least three second cushion beams 52 arranged from left to right and two fixed rope sheave beams 53 spaced apart from each other. The bottom of the fixed rope sheave beam 53 is fixedly connected to the top of all the second cushion beams 52 by welding. The two car fixed rope sheaves 51 are arranged from left to right. The two ends of the wheel axle of the car fixed rope sheave 51 are respectively fixed to the top of the two fixed rope sheave beams 53, and the wheel body of the car fixed rope sheave 51 is inserted between the two fixed rope sheave beams 53. Further, the right side of the car fixed rope sheave 51 on the right side and the left side of the car fixed rope sheave 51 on the left side are both installed on the first machine room rope stopper 54. The front and rear ends of the first machine room rope stopper 54 are overlapped on the two fixed rope sheave beams 53. The first machine room rope stopper 54 is used to prevent the traction rope 2 from detaching from the car fixed rope sheave 51.

[0058] As a preferred embodiment, the counterweight device 33 includes two counterweight modules 310 arranged side by side, the counterweight module 310 includes a counterweight frame 31 and a counterweight array, the counterweight frames 31 of the two counterweight modules 310 are fixed together, each counterweight frame 31 is provided with a group of re-entry rope pulleys, and each group of re-entry rope pulleys includes a front counterweight rope pulley 32 and a rear counterweight rope pulley 33; specifically, a counterweight rope pulley installation space is provided on the upper part of the counterweight frame 31, and the front counterweight rope pulley 32 and the rear counterweight rope pulley 33 are arranged from front to back in the counterweight rope pulley installation space, and the front counterweight rope pulley 32 and the rear counterweight rope pulley 33 are rotatably connected to the counterweight frame 31; The lower part of the counterweight frame 31 is provided with at least two counterweight installation spaces arranged from left to right, and a counterweight array is installed in each counterweight installation space, and each counterweight array includes a plurality of counterweight blocks 34 stacked from top to bottom, and the front and rear ends of the counterweight blocks 34 are provided with positioning protrusions 341, and the front and rear ends of the counterweight installation space are provided with two counterweight limiting parts 3101 distributed on the left and right, and the two corresponding counterweight limiting parts 3101 on the left and right form a counterweight positioning groove 3102 for the positioning protrusion 341 to be inserted into and positioned for cooperation, and the front and rear ends of the counterweight installation space have the positioning groove 3102. 102; The bottom surface of the lowest counterweight block 34 abuts against the counterweight frame 31, and the counterweight array is pressed and fixed by at least one counterweight fixing assembly 35, and the counterweight fixing assembly 35 includes a counterweight pressing member 351 for pressing against the top surface of the uppermost counterweight block 34 and two counterweight pressing locking blocks 352 respectively arranged at the front and rear ends of the counterweight pressing member 351, and the counterweight pressing locking blocks 352 are fixed to the counterweight pressing member 351 by a counterweight bolt assembly 353, and a counterweight fixing clamp clamped on the counterweight limiting portion 3101 is formed between the counterweight pressing locking blocks 352 and the counterweight pressing member 351.

[0059] Furthermore, the counterweight bolt assembly 353 at least includes a counterweight fixing bolt 3531, a counterweight fixing flat washer, a counterweight fixing spring washer and a counterweight fixing nut; after the counterweight fixing bolt 3531 is loosened, the counterweight fixing assembly 35 can move up and down along the counterweight limiting portion 3101, so that the counterweight pressing member 351 can move down and press on the top surface of the top counterweight block 34 to press the counterweight block 34, or the counterweight pressing member 351 can move upward away from the top counterweight block 34 to release the corresponding counterweight block 34. This structure does not require a through hole to be provided on the counterweight frame 31 for matching the counterweight fixing assembly 35, so that the installation of the counterweight fixing assembly 35 will not affect the structural strength of the counterweight frame 31, and effectively ensures the overall structural stability of the counterweight frame 31.

[0060] As a preferred embodiment, the counterweight clamping member 351 is made of angle steel, and is provided with two clamping member adjustment long holes 3511 extending from front to back in the length direction. Each clamping member adjustment long hole 3511 is connected to a counterweight clamping locking block 352 through a counterweight bolt assembly 353. The counterweight pressing locking block 352 includes a pressing locking block body 3521, a first counterweight pressing portion 3522 for abutting against the counterweight pressing piece 351, and a second counterweight pressing portion 3523 for abutting against the counterweight limiting portion 3101, the first counterweight pressing portion 3522, the pressing locking block body 3521 and the second counterweight pressing portion 3523 are connected and form a stepped structure, the second counterweight pressing portion 3523 and the counterweight pressing piece 351 form the counterweight fixing clamp; the first counterweight pressing portion 3522 and the second counterweight pressing portion 3523 are both integrally formed, wherein the first counterweight pressing portion 3522 is located on a transverse end face of the pressing locking block body 3521, the second counterweight pressing portion 3523 is located on a longitudinal end face of the pressing locking block body 3521, and the transverse end face and the longitudinal end face are perpendicular to each other. By connecting the first counterweight pressing portion 3522, the pressing locking block body 3521 and the second counterweight pressing portion 3523 to form a stepped structure, the pressing locking block body 3521 at least does not need to contact the counterweight pressing member 351, so that the counterweight pressing locking block 352 can be better fixed on the counterweight limiting portion 3101.

[0061] Furthermore, the counterweight pressing lock block 352 is provided with a counterweight pressing through hole that passes through the counterweight pressing lock block 352 from left to right and a counterweight bolt head positioning groove 3524 that is connected to one end of the counterweight pressing through hole. The screw end of the counterweight fixing bolt 3531 sequentially passes through the counterweight pressing through hole of the counterweight pressing lock block 352, the pressing piece adjustment long hole 3511 of the counterweight pressing piece 351, the counterweight fixing flat washer and the counterweight fixing spring washer, and then cooperates with the counterweight fixing nut thread; the counterweight bolt head positioning groove 3524 is configured to limit the rotation of the counterweight fixing bolt 3531, so that the worker can tighten the counterweight fixing nut. In addition, after loosening the counterweight fixing bolt 3531, the counterweight pressing lock block 352 can adjust its position forward and backward along the pressing piece adjustment long hole 3511, so as to better cooperate with the counterweight limiting part 3101.

[0062] As a preferred embodiment, the counterweight frames 31 of the two counterweight modules 310 are fixed together by a combination of a first connecting member 36 and a second connecting member 37, wherein the first connecting member 36 is connected to the upper part of the counterweight frames 31 of the two counterweight modules 310, and the first connecting member 36 is located between the front counterweight rope pulley 32 and the rear counterweight rope pulley 33; the second connecting member 37 is connected to the lower part of the counterweight frames 31 of the two counterweight modules 310.

[0063] In this embodiment, the counterweight frame 31 includes two counterweight columns 311, an upper clamping plate assembly, a middle clamping plate assembly, a lower clamping plate assembly and a counterweight isolation column 312. The upper clamping plate assembly includes two upper clamping plate halves 313 respectively located on the left and right sides of the counterweight column 311. The front and rear ends of the upper clamping plate halves 313 are respectively fixedly connected to the two counterweight columns 311, and a counterweight wheel avoidance space is formed between the two upper clamping plate halves 313. The upper clamping plate halves 313 are fixed to the counterweight columns 311 by bolt connection.

[0064] In this embodiment, the front counterweight rope pulley 32 and the rear counterweight rope pulley 33 both include a counterweight rope shaft and a counterweight rope body rotatably mounted on the counterweight rope shaft. The counterweight rope shaft of the front counterweight rope pulley 32 and the counterweight rope shaft of the rear counterweight rope pulley 33 are both abutted against the bottom of two upper clamping plate halves 313. The upper clamping plate halves 313 are provided with counterweight U-bolts 315 for fixing the counterweight rope shaft. The upper part of the front counterweight rope pulley 32 and the upper part of the rear counterweight rope pulley 33 both extend into the upper counterweight rope pulley avoidance space.

[0065] In this embodiment, the middle clamping plate assembly is located below the upper clamping plate assembly, and a lower counterweight rope pulley avoidance space is formed between the middle clamping plate assembly and the upper clamping plate assembly, the upper part of the front counterweight rope pulley 32 and the lower part of the rear counterweight rope pulley 33 both extend into the lower counterweight rope pulley avoidance space, and the upper counterweight rope pulley avoidance space and the lower counterweight rope pulley avoidance space constitute the counterweight rope pulley installation space.

[0066] Furthermore, the center plate assembly includes two center plate halves 316, which are respectively located on the left and right sides of the counterweight column 311, and the front and rear ends of the center plate halves 316 are fixedly connected to the two counterweight columns 311 by bolt connection.

[0067] In this embodiment, the lower clamping plate assembly includes two lower clamping plate halves 317, which are respectively located on the left and right sides of the counterweight column 311, and the front and rear ends of the lower clamping plate halves 317 are respectively fixedly connected to the counterweight column 311 by bolt connection. Furthermore, the lower splint assembly also includes a plurality of lower splint connection units 319 connected to the two lower splint halves 317, and the plurality of lower splint connection units 319 are arranged from front to back, and each lower splint connection unit 319 includes a lower splint connection seat 3191 and a lower splint connection plate 3192, and the lower splint connection seat 3191 is inserted between the two lower splint halves 317, and is fixedly connected to the two lower splint halves 317 by bolt connection; the lower splint connection plate 3192 is located at the bottom of the two lower splint halves 317, and the middle part of the lower splint connection plate 3192 is fixedly connected to the lower splint connection seat 3191 by bolt connection, and the left and right ends are fixedly connected to the bottom surfaces of the two lower splint halves 317 by bolt connection, so that the lower splint connection unit 319 is utilized to enhance the installation stability of the two lower splint halves 317. In addition, the two adjacent lower clamping plate connecting units 319 on the left and right are connected to a second connecting member 37 together, and the left and right ends of the lower clamping plate connecting unit 319 respectively extend to the bottom of the two lower clamping plate halves 317 of the same lower clamping plate assembly, and the left and right ends of the second connecting member 37 are respectively connected to the two lower clamping plate connecting units 319 by bolt connection, so that the counterweight frames 31 of the two counterweight modules 310 are combined together to ensure the connection quality between the two counterweight modules 310.

[0068] In this embodiment, there are at least two counterweight isolation columns 312 and they are arranged from front to back between the two counterweight columns 311. The lower end of the counterweight column 311 extends between the two lower clamping plate halves 317, and the left and right sides of the lower end of the counterweight isolation column 312 are respectively fixedly connected to the two counterweight lower clamping plate halves 317 by bolt connection; the upper end of the counterweight column 311 extends between the two middle clamping plate halves 316, and the left and right sides of the upper end of the counterweight column 311 are respectively fixedly connected to the two middle clamping plate halves 316.

[0069] In this embodiment, the counterweight installation space is formed between the counterweight isolation column 312 and the counterweight column 311, and between two adjacent counterweight isolation columns 312 in front and behind. The counterweight limiting portion 3101 is provided on the counterweight isolation column 312 and the counterweight column 311. There is a counterweight fixing component 35 at the front and rear ends of each counterweight installation space, so that each counterweight array can be pressed and fixed by two counterweight fixing components 35 to ensure the installation quality of the counterweight array.

[0070] In this embodiment, a counterweight mounting plate 318 is provided on the top and bottom of each of the counterweight columns 311. The upper counterweight mounting plate 318 is fixedly connected to the two upper clamping plate halves 313 located on the same counterweight frame 31 by means of bolt connection. The lower counterweight mounting plate 318 is fixedly connected to the two lower clamping plate halves 317 located on the same counterweight frame 31 by means of bolt connection, thereby improving the installation quality of the upper clamping plate halves 313 and the lower clamping plate halves 317. A counterweight guide shoe 39 for cooperating with the counterweight guide rail is installed on each counterweight mounting plate 318.

[0071] In this embodiment, two counterweight rope stop assemblies are provided on the counterweight frame 31, and the two counterweight rope stop assemblies correspond to the front counterweight rope wheel 32 and the rear counterweight rope wheel 33 located on the same counterweight frame 31, respectively. The counterweight rope stop assembly includes a front counterweight rope stop member 381 corresponding to the front side of the counterweight wheel body, a rear counterweight rope stop member 382 corresponding to the rear side of the counterweight wheel body, and a lower counterweight rope stop member 383 corresponding to the lower side of the counterweight wheel body, wherein the front and rear ends of the front counterweight rope stop member 381 and the rear counterweight rope stop member 382 are respectively connected to the bottom of the two upper clamping plate half bodies 313, so that ... front counterweight rope stop member 381 and the rear counterweight rope stop member 382. The rope stop member 381 and the rear counterweight rope stop member 382 can prevent the traction rope from slipping off the counterweight wheel body while strengthening the connection stability of the two upper clamping plate halves 313; the upper end of the lower counterweight rope stop member 383 is arranged close to the lower side of the counterweight wheel body, and the lower end is inserted between the two middle clamping plate halves 316, and the left and right sides of the lower end of the lower counterweight rope stop member 383 are respectively fixedly connected to the two middle clamping plate halves 316, so that the lower counterweight rope stop member 383 can prevent the traction rope from slipping off the counterweight wheel body while strengthening the connection stability between the two middle clamping plate halves 316.

[0072] 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 belongs to the protection scope of the present invention.

Claims

1. An extra-large load 4:1 freight elevator, comprising a freight elevator frame (1), the freight elevator frame (1) comprising at least two car frames (11) arranged from front to back, the car frame (11) comprising two car frame columns (111), a car frame upper beam (112) and a car frame lower beam (113), the left and right ends of the car frame upper beam (112) are respectively connected to the upper ends of the two car frame columns (111), and the left and right ends of the car frame lower beam (113) are respectively connected to the lower ends of the two car frame columns (111), characterized in that: The bottoms of the upper beams (112) of all the sedan frames (11) are commonly connected to two longitudinal top beams (114), the two longitudinal top beams (114) are respectively close to two sedan frame columns (111), and each of the longitudinal top beams (114) is provided with two sedan top return rope wheels (10) distributed front and rear; The cargo elevator frame (1) also includes a chassis (13) located above the car frame upper beam (112) and a reinforcement frame located between the chassis (13) and the longitudinal top beam (114); the bottom of the chassis (13) is simultaneously fixedly connected to the top of the car frame lower beams (113) of all the car frames (11); the reinforcement frame includes a reinforced front cross beam (116) and two longitudinal reinforcement beams (117); one of the longitudinal reinforcement beams (117) is simultaneously fixedly connected to the car frame columns (111) located on the left side of all the car frames (11); the other longitudinal reinforcement beam (117) is simultaneously fixedly connected to the car frame columns (111) located on the right side of all the car frames (11); and the left and right ends of the reinforced front cross beam (116) are respectively fixedly connected to the front ends of the two longitudinal reinforcement beams (117).

2. The super-large load 4:1 freight elevator according to claim 1, characterized in that: Of the two car top return rope pulleys (10) on each longitudinal top beam (114), the front car top return rope pulley (10) is located directly below the car frame upper beam (112) of the frontmost car frame (11), and the rear car top return rope pulley (10) is located directly below the car frame upper beam (112) of the rearmost car frame (11).

3. The super-large load 4:1 freight elevator according to claim 1, characterized in that: The longitudinal top beam (114) comprises two longitudinal top beam bodies (1141) arranged in a left-right symmetrical manner, the top of the longitudinal top beam body (1141) being fixedly connected to the bottom of the car frame upper beam (112), and a top wheel installation space for accommodating at least part of the car top return rope wheel (10) is formed between the two longitudinal top beam bodies (1141).

4. The super-large load 4:1 freight elevator according to claim 3, characterized in that: The bottoms of the two longitudinal top beams (1141) are commonly connected to a top wheel installation shaft via U-shaped bolts, the car top return rope wheel (10) is rotatably mounted on the top wheel installation shaft, and the upper end of the car top return rope wheel (10) extends into the top wheel installation space.

5. The super-large load-carrying 4:1 freight elevator according to claim 3, characterized in that: The longitudinal top beam body (1141) is made of channel steel, and a plurality of top beam reinforcing ribs (1142) arranged from front to back are provided on the groove of the longitudinal top beam body (1141).

6. The super-large load 4:1 freight elevator according to claim 4, characterized in that: The bottoms of the two longitudinal top beams (1141) are simultaneously connected to car wheel covers (1143); each car top return rope pulley (10) corresponds to a car wheel cover (1143); the interior of the car wheel cover (1143) is a lower accommodation space; the lower part of the car top return rope pulley (10) is located in the lower accommodation space.

7. The super-large load-carrying 4:1 freight elevator according to claim 6, characterized in that: A car wheel rope blocking assembly is provided on the car wheel cover (1143), and the car wheel rope blocking assembly comprises a car wheel rope blocking shaft (1144) corresponding to the front and rear sides of the car top return rope wheel (10) and a car wheel lower rope blocking member (1145) corresponding to the lower side of the car top return rope wheel (10). The car wheel rope blocking shaft (1144) and the car wheel lower rope blocking member (1145) both extend into the lower accommodation space, and the car wheel rope blocking shaft (1144) and the car wheel lower rope blocking member (1145) are both installed on the car wheel cover (1143) in an adjustable position.

8. The super-large load-carrying 4:1 freight elevator according to claim 1, characterized in that: A car wall assembly (118) is installed on the chassis (13), a car roof (119) is installed on the top of the car wall assembly (118), and the chassis (13), the car wall assembly (118) and the car roof (119) are combined to form a car with a bearing space.

9. An ultra-large load 4:1 freight elevator according to any one of claims 1 to 8, characterized in that: The invention also comprises a traction rope (2), a counterweight device (3), a traction main machine (4), a first rope sheave seat (5), a second rope sheave seat (6) and a traction machine seat (7); a counterweight device (3) is provided with a re-entry rope sheave on the top of the counterweight device (3); the first rope sheave seat (5) and the traction machine seat (7) are both located above the freight elevator frame (1); the traction main machine (4) is mounted on the traction machine seat (7); the traction main machine (4) is provided with a traction wheel (41) driven to rotate by the traction main machine (4); the traction machine seat (7) is provided with a car rope head assembly (71) located above the car and a counterweight rope head located above the counterweight device (3); The invention relates to a car elevator assembly (72) and a counterweight guide rope sheave (73), wherein the first rope sheave seat (5) is provided with a car fixed rope sheave (51) located above the freight elevator frame (1); the second rope sheave seat (6) is at least partially located above the counterweight device (3), and the second rope sheave seat (6) is provided with a counterweight fixed rope sheave (61); one end of the traction rope (2) is fixed to the car rope head assembly (71), and the other end is wound around the car top return rope sheave (10), the car fixed rope sheave (51), the counterweight fixed rope sheave (61), the traction sheave (41) and the counterweight guide rope sheave (73) and then fixed to the counterweight rope head assembly (72).

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