CN110884985A

CN110884985A - Large-load goods elevator

Info

Publication number: CN110884985A
Application number: CN201911221555.8A
Authority: CN
Inventors: 张建雨; 张建腾; 欧阳永贤; 张伟能
Original assignee: Xin Green Elevator (china) Co Ltd
Current assignee: Singerlin Elevator Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-03-17
Anticipated expiration: 2039-12-03
Also published as: CN110884985B

Abstract

The utility model provides a big load goods lift, the computer lab at top, sedan-chair frame and the counterweight of connecting through the haulage rope, the computer lab includes main spandrel girder, vice spandrel girder, to heavy load bearing beam subassembly, two sets of car bearing beam subassemblies, carry out technological improvement optimization through computer lab, sedan-chair frame, the counterweight in the big load goods lift respectively, and carry out rational design with the linkage relation between the three, make the operation of big load goods lift more steady, overall structure intensity obtains reasonable the enhancement, and realize the big demand of bearing of little hauler drive, greatly reduced elevator manufacturing cost, also reduce the requirement to haulage rope tensile strength simultaneously, through carrying out rational configuration with computer lab, sedan-chair frame, counterweight's part, make full use of three's space, make the holistic space of elevator occupy greatly reduced, save space.

Description

Large-load goods elevator

Technical Field

The invention belongs to the technical field of elevator manufacturing structures, and particularly relates to a large-load goods elevator.

Background

Along with the continuous extension of elevator application range and occasion, the continuous update of large-scale storage equipment, the market hopes that the elevator can possess bigger bearing capacity, and the power of elevator operation derives from the hauler, the hauler is influencing the functioning speed and the bearing capacity of elevator, domestic hauler can bear the weight of the scope less, be difficult to bear the weight of the heavy load freight elevator, the heavy load freight elevator mainly connects computer lab, sedan-chair frame and counterweight by the hauler transmission, make the elevator realize the elevating movement, consequently need carry out the technical innovation to the operational environment and the technical demand of heavy load freight elevator computer lab, sedan-chair frame, the overall structure of counterweight, make the heavy load freight elevator can adopt little hauler to realize the demand of big bearing.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the large-load goods elevator which is reasonable in structural arrangement, saves space and meets the requirement of large bearing capacity by adopting a small traction machine.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a large-load goods elevator comprises a machine room at the top, a car frame and a counterweight device which are connected by a hauling rope, wherein,

the machine room comprises a main bearing beam, an auxiliary bearing beam, a counterweight bearing beam assembly and two groups of car bearing beam assemblies, the main bearing beam and the auxiliary bearing beam are arranged oppositely at intervals, the counterweight bearing beam assembly and the two groups of cage bearing beam assemblies are arranged across the upper parts of the main bearing beam and the auxiliary bearing beam, the main bearing beam, the auxiliary bearing beam and the two groups of car bearing beam components form an installation frame structure of a machine room, the counterweight bearing beam assembly is arranged at the outer side of one group of the car bearing beam assemblies, the counterweight bearing beam assembly and the two groups of the car bearing beam assemblies form a three-row arrangement structure, the main bearing beam is provided with a traction machine which is arranged at one end close to the counterweight bearing beam component, a pair of cage fixed pulleys is arranged in each of the auxiliary bearing beam and the two groups of cage bearing beam assemblies, and three counterweight fixed pulleys are arranged in each counterweight bearing beam assembly;

the sedan frame comprises a main sedan frame, auxiliary sedan frames symmetrically arranged on two sides of the main sedan frame, a sedan bottom supported by the main sedan frame and the auxiliary sedan frames, a cantilever beam connecting the main sedan frame and the auxiliary sedan frames, and a sedan top wheel installed in the cantilever beam, wherein the upper end and the lower end of each of the main sedan frame and the auxiliary sedan frames are provided with guide shoes, the bottom of the main sedan frame is provided with a set of safety tongs, an inclined pull rod is arranged between the main sedan frame and the sedan bottom, the main sedan frame, the sedan bottom and the inclined pull rod form a triangular reinforcing structure, the outer side of the sedan top wheel is provided with guard railings, and the two ends of the sedan bottom are provided with sedan door frames;

the counterweight device comprises two counterweight frames, a connecting rod for connecting the two counterweight frames into a whole is arranged between the two counterweight frames, a pair of counterweight wheels is arranged at the top of each counterweight frame, each counterweight frame comprises a rectangular frame, counterweight blocks arranged in the rectangular frame and a pressing mechanism for tightly pressing and installing the counterweight blocks in the rectangular frame, the pressing mechanism is arranged at the top of the counterweight blocks, and a plurality of adjusting bases are transversely distributed at intervals at the bottom of the rectangular frame.

The counterweight block comprises a metal shell and a counterweight block arranged in the metal shell, wherein one end of the metal shell is provided with an opening, the inner wall of the metal shell is matched with the outer wall of the counterweight block, the counterweight block is sleeved into the metal shell from the opening of the metal shell, an inserting strip is arranged at the opening of the metal shell to lock the counterweight block in the metal shell, the counterweight block comprises a fully-closed plastic shell and a plurality of steel frames arranged in the plastic shell, two ends of each steel frame are fixedly supported at two ends of the plastic shell, cement is filled in the plastic shell, and the plastic shell is provided with a pouring port for pouring the cement into the plastic shell and an exhaust port for exhausting gas in the plastic shell.

The pressing mechanism comprises two mounting plates and a supporting rod, wherein the two mounting plates are fixedly mounted on the two cross beams respectively, the supporting rod is connected with the two mounting plates, two connecting rods are arranged on each mounting plate, one end of each connecting rod penetrates through the mounting plates from top to bottom, the bottom of each connecting rod is connected with a horn-shaped pressing piece, external threads are formed in each connecting rod, and the mounting plates and the connecting rods are connected in a locking mode through nut adjusting assemblies.

According to the elevator counterweight guide rail device, two counterweight frames are arranged in a double-row structure, elastic guide shoes are arranged at four top corners of a rectangular frame and comprise mounting bases and sliding blocks, the mounting bases are connected with the sliding blocks through springs, the sliding blocks are mounted in the mounting bases, and sliding grooves used for being matched with elevator counterweight guide rails are formed in the sliding blocks.

In the invention, the bottom of the traction machine is provided with a main frame, the traction machine is arranged on a main bearing beam through the main frame, the end part of one group of the car bearing beam assemblies is clamped into the main frame to be fixed, and the end part of the other group of the car bearing beam assemblies is provided with a car rope head frame to be fixed.

In the invention, a set of safety tongs is also arranged at the bottom of the auxiliary car frame, a lifting mechanism is arranged between the safety tongs for linkage, the lifting mechanism comprises two short shafts crossing the main car frame and the auxiliary car frame, two pull handles arranged at the end parts of the two short shafts, and a stay connected with the two pull handles, the two ends of the stay are respectively connected with the two short shafts through the two pull handles, the two ends of each short shaft are sleeved with handles for lifting the safety tongs, the handles are arranged right above the safety tongs, the middle part of the stay is sleeved with a return spring, one end of the return spring is provided with a clamping plate, the other end of the return spring is fixedly connected with the stay, and the clamping plate is fixedly arranged on the main car frame.

The invention has the beneficial effects that: the elevator has the advantages that the machine room, the car frame and the counterweight device in the large-load goods elevator are respectively improved and optimized, the linkage relation among the machine room, the car frame and the counterweight device is reasonably designed, so that the large-load goods elevator is more stable in operation, the overall structural strength is reasonably enhanced, the requirement of a small tractor for driving large bearing is met, the manufacturing cost of the elevator is greatly reduced, the requirement on the tensile strength of a hauling rope is also reduced, the space of the machine room, the car frame and the counterweight device is reasonably configured, the space of the three devices is fully utilized, the overall space occupation of the elevator is greatly reduced, and the space is saved.

Drawings

The invention is further illustrated by the following figures and embodiments:

FIG. 1 is a schematic overall structure diagram according to a first embodiment;

FIG. 2 is a schematic view of the connection of the pulley block according to the first embodiment;

FIG. 3 is a schematic view of an installation structure according to an embodiment;

FIG. 4 is a schematic structural diagram of a machine room according to an embodiment;

FIG. 5 is a front view of a machine room according to an embodiment;

FIG. 6 is a bottom view of a machine room according to an embodiment;

FIG. 7 is a schematic structural view of a car frame according to an embodiment;

FIG. 8 is a schematic structural view of a main frame according to an embodiment;

FIG. 9 is a front view of a main frame according to an embodiment;

FIG. 10 is an enlarged view of portion A of FIG. 8;

FIG. 11 is a schematic view of a platform according to an embodiment;

FIG. 12 is a schematic view of a structure of a door frame according to an embodiment;

FIG. 13 is a schematic structural diagram of a counterweight device according to an embodiment;

FIG. 14 is a schematic structural view of a guide shoe according to an embodiment;

FIG. 15 is a schematic structural diagram of an adjustment base according to an embodiment;

FIG. 16 is a schematic view of a pair of weights according to an embodiment;

FIG. 17 is a top view of the internal structure of a pair of weights according to an embodiment;

FIG. 18 is a front view of the internal structure of a pair of weights according to an embodiment;

FIG. 19 is a side view of a pair of weights of an embodiment;

FIG. 20 is a schematic structural view of a steel frame according to an embodiment;

FIG. 21 is a front view of a steel frame according to one embodiment;

FIG. 22 is a schematic view of a pressing mechanism according to an embodiment;

FIG. 23 is a left side view of FIG. 22;

FIG. 24 is a top view of FIG. 22;

FIG. 25 is a schematic structural view of a second guide shoe according to the embodiment;

FIG. 26 is a top view of FIG. 25;

fig. 27 is a schematic structural view of a third pulling mechanism according to the embodiment.

Detailed Description

In order to make the objects, 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 with reference to the drawings in the embodiments of the present invention.

Example (b):

as shown in fig. 1 to 24, the present embodiment discloses a large load cargo lift, which comprises a machine room 1 at the top, a car frame 2 connected by a hoisting rope, and a counterweight 3, wherein,

computer lab 1 includes main spandrel girder 11, vice spandrel girder 12, to heavy spandrel girder subassembly 13, two sets of car bearing beam subassembly 14, main spandrel girder 11 is just to setting up with vice spandrel girder 12 is spaced apart, to heavy bearing beam subassembly 13, two sets of car bearing beam subassembly 14 all span and set up in main spandrel girder 11 and vice spandrel girder 12 top, main spandrel girder 11, vice spandrel girder 12 and two sets of car bearing beam subassembly 14 constitute computer lab 1's installation frame structure, to the outside that heavy bearing beam subassembly 13 set up one of them car bearing beam subassembly 14, to heavy bearing beam subassembly 13, two sets of car bearing beam subassembly 14 formation three rows formula row cloth structure, install hauler 15 on the main spandrel girder 11, hauler 15 sets up the one end of being close to heavy bearing beam subassembly 13, all be equipped with a pair of car fixed pulley 141 in vice spandrel girder 12, the two sets of car bearing beam subassembly 14, 141 ', 142 ', 143 ', the counterweight bearing beam assembly 13 is provided with three

counterweight pulleys

131, 131 ', 131 ", thereby forming a driving layout with a traction ratio of 8:1, the purpose of driving a heavy-load cargo elevator by a small tractor 15 is realized by arranging a machine room 1 structure with a traction ratio of 8:1 by reasonably arranging a bearing frame and a bearing assembly in an elevator machine room 1 and combining a labor-saving principle of a car fixed pulley 141, 141 ', 142 ', 143 ' and a counterweight pulley, and the production and manufacturing cost of the elevator machine room 1 is reduced.

In a preferred embodiment, a main frame 16 is provided at the bottom of the hoisting machine 15, the hoisting machine 15 is mounted on the main bearing beam 11 through the main frame 16, the end of one group of car bearing beam assemblies 14 is clamped into the main frame 16 and fixed, and the end of the other group of car bearing beam assemblies 14 is fixed by a car head frame 17, in this embodiment, the car head frame 17 includes channel beams on both sides and a head plate crossing the tops of the two channel beams, and the end of the car bearing beam assembly 14 is inserted into the car head frame 17 and fixed by the head plate in a pressing manner.

In a preferred embodiment, a guide wheel 18 is arranged at the bottom of the main bearing beam 11, the guide wheel 18 is arranged at one end close to the counterweight bearing beam assembly 13, and the rotation axis of the guide wheel 18 is perpendicular to the rotation axis of the counterweight fixed

pulleys

131, 131', 131 ″.

In a preferred embodiment, the bottom of each of the main bearing beam 11 and the secondary bearing beam 12 is provided with a cushion beam 19 for cushioning the main bearing beam 11 and the secondary bearing beam 12 to a fixed height, and the cushioning height of the cushion beam 19 is greater than the height of the guide wheels 18 protruding out of the bottom of the main bearing beam 11. The auxiliary bearing beam 12 is provided with a counterweight rope head frame 17 ', the end part of the counterweight bearing beam assembly 13 is clamped into the counterweight rope head frame 17 ' for fixation, and in this embodiment, the structure of the counterweight rope head frame 17 ' is the same as that of the car rope head frame 17.

In a preferred embodiment, a cage fixed pulley cover is covered directly above each pair of cage fixed pulleys 141, 141 ', 142', 143 ', and a counterweight fixed pulley cover is covered above each counterweight fixed

pulley

131, 131', 131 ″. The counterweight bearing beam assembly 13 comprises a counterweight bearing beam, and the counterweight pulleys 131, 131' are arranged above the counterweight bearing beam. The car bearing beam assembly 14 comprises a car bearing beam, and the car fixed

pulleys

141, 141 ', 142 ', 143 and 143 ' are installed above the car bearing beam, so that foreign matters such as dust can be effectively prevented from entering the pulley block to influence the operation of the pulley block, and the operation efficiency and reliability of the elevator are guaranteed.

The car frame 2 comprises a main car frame 21, auxiliary car frames 22 symmetrically arranged on two sides of the main car frame 21, a car bottom 23 supported by the main car frame 21 and the auxiliary car frames 22, a cantilever beam 24 connecting the main car frame 21 and the auxiliary car frames 22, and car top wheels 25, 25 'and 25' ″ installed in the cantilever beam 24, wherein guide shoes 26 are installed at the upper and lower ends of the main car frame 21 and the auxiliary car frames 22, a set of safety tongs 27 is arranged at the bottom of the main car frame 21, a diagonal draw bar 28 is arranged between the main car frame 21 and the car bottom 23, the main car frame 21, the car bottom 23 and the diagonal draw bar 28 form a triangular reinforcing structure, guard railings 29 are arranged on the outer sides of the car top wheels 25, 25 'and 25' ″, and car door frames 20 are arranged at two ends of the car bottom 23; the elevator braking is safer and more reliable by arranging the car frame 2 into a structure of a main car frame 21 and two groups of auxiliary car frames 22 which are symmetrically distributed, arranging the guide shoes 26 at the upper end and the lower end of the car frame 2 and arranging the single-row guide rail and one set of safety gear 27 on the main car frame 21, and avoiding the risks of uneven linkage stress and nonuniform actions of the safety gear 27 with the multiple rows of guide rails; further, two pairs of car top wheels 25, 25 'and 25' are arranged at the top of the car frame 2, so that the hanging ratio of 8:1 is realized, the performance requirement of a main machine and the strength requirement of the car frame 2 are reduced, and the manufacturing cost is reduced; further, the structure of the car frame 2 is optimized integrally, and the guard rails 29, the diagonal draw bars 28, the car door frames 20 and other structures are arranged on the car frame 2, so that the overall structural strength and the safety of the car frame 2 are improved.

The main car frame 21 comprises an upper beam 211, car frame uprights 212, a lower beam 213 and a connecting plate 214 for connecting the upper beam 211 and the car frame uprights 212, wherein the upper beam 211, the car frame uprights 212 and the lower beam 213 are connected to form a frame structure. The car bottom 23 comprises a top plate 231 and a bottom frame 232, wherein the top plate 231 covers the bottom frame 232, and the bottom frame 232 is composed of a plurality of criss-cross support rods. The lower beam 213, the safety gear 27 and the guide shoe 26 are arranged in sequence from top to bottom along the guide rail. In this embodiment, the upper beam 211 is formed by two parallel channel beams, the structural design of the main car frame 21 and the sub car frame 22 is the same, and the channel beam strength and the guide shoe 26 strength of the upper beam 211 of the main car frame 21 are both higher than those of the channel beam 211 of the sub car frame 22 and the guide shoe 26 strength.

In a preferred embodiment, two pairs of outriggers 24 are provided below both end portions of the upper beam 211, each pair of outriggers 24 has a pair of

top wheels

25, 25 ', 25 ", 25'", a sheave cover is fixedly attached to the top of the outrigger 24, the sheave cover is provided directly above the

top wheels

25, 25 ', 25 ", 25'", in the present embodiment, the sheave cover is also provided directly below the

top wheels

25, 25 ', 25 ", 25'", so as to prevent foreign matter from entering and affecting the movement of the

top wheels

25, 25 ', 25 ", 25'", a rotating shaft is provided in the middle of the

top wheels

25, 25 ', 25 ", 25'", and the rotating shaft is provided with U-shaped bolts at both ends thereof, and is fixedly attached below the outriggers 24 by the U-shaped bolts, and the pressure of the rotating shaft is always applied to the bottom surface of the outriggers 24.

In a preferred embodiment, the upper beam 211 is provided at both ends thereof with shoe guide plates for mounting the shoe guides 26, the shoe guide plates are mounted above the upper beam 211, and the shoe guides 26 are mounted above the shoe guide plates. The outer periphery of the guide shoe plate is provided with connecting angle steel for fixedly mounting a protective guard 29, two ends of the connecting angle steel are connected with connecting angle connectors, and the protective guard 29 is fixedly mounted on the outer side of the cantilever beam 24 through the connecting angle connectors. In this embodiment, the guard rail 29 has a grid structure, the connection angle brace has a right-angle brace, and forms a concave connection structure with connection angle steel, the connection angle steel is fixedly installed above the upper beam 211, and the guard rail 29 is supported by the upper beam 211.

In a preferred embodiment, the car door frame 20 comprises a sill 201, car door columns 202 arranged at two ends of the sill 201, and a gantry arm 203 for connecting the car door columns 202 of the car doors at two ends into a car door frame 20 structure, wherein the gantry arm 203 is fixedly arranged at the inner sides of the car frame columns 212.

The counterweight device 3 comprises two counterweight frames 31, a connecting rod 32 for connecting the two counterweight frames 31 into a whole is arranged between the two counterweight frames 31, in the embodiment, the two counterweight frames 31 are arranged in a single-row parallel structure, a pair of

counterweight wheels

33, 33 ', 33 ", and 33'" is arranged at the top of each counterweight frame 31, each counterweight frame 31 comprises a rectangular frame 311, a counterweight 312 installed in the rectangular frame 311, and a pressing mechanism 313 for pressing and installing the counterweight 312 in the rectangular frame 311, the pressing mechanism 313 is arranged at the top of the counterweight 312, and a plurality of adjusting bases 314 are transversely distributed at intervals at the bottom of the rectangular frame 311. The rectangular frame 311 is provided with a connecting channel 314, the connecting channel 314 divides the rectangular frame 311 into an upper mounting area for mounting the counterweight wheels 33, 33 'at the upper part and a lower mounting area for mounting the counterweight block 312 at the lower part, the two counterweight wheels 33, 33' are mounted in the upper mounting area side by side at intervals, the lower mounting area is provided with a middle upright column 315 for dividing the lower mounting area into a left half part and a right half part, the two counterweight wheels 33, 33 'are respectively arranged right above the left half part and the right half part of the lower mounting area, the counterweight device 3 is divided into two counterweight frames 31, the counterweight frames 31 are spliced through a connecting rod 32, the two counterweight wheels 33, 33' are arranged in the counterweight frame 31, so that the counterweight frame 31 forms a traction ratio of 8:1, the load force of a counterweight rope is reduced, meanwhile, the structural improvement of the counterweight frame 31 is realized, and the bottom of the framework of the counterweight frame 31 is provided with an adjusting base 314, the installation area of counterweight 312 is set to four parts, and middle upright column 315 is arranged in the lower installation area, so that the internal structural strength of the frame of counterweight frame 31 is improved, and the upper cross beam 3111 and the lower cross beam 3112 in rectangular frame 311 are both fixedly installed on counterweight upright columns 3113 through connecting plates 3114, so that the external structural strength of rectangular frame 311 is ensured and deformation is not easy to occur.

As a preferred embodiment, the rectangular frame 311 includes two upper cross beams 3111 at the front and rear sides of the top, a counterweight upright 3113 at the left and right sides, and two lower cross beams 3112 at the front and rear sides of the bottom, the rectangular frame 311 is a rectangular frame structure, and the upper cross beam 3111 and the lower cross beam 3112 both adopt channel steel structures, so that the structural strength of the rectangular frame 311 can be effectively improved and the rectangular frame 311 is prevented from deforming.

As a preferred embodiment, a rotating shaft for supporting the

counterweight wheel

33, 33 ', 33 ", 33'" to rotate is arranged at the center of the

counterweight wheel

33, 33 ', 33 ", 33'", U-shaped bolts for fixedly installing the rotating shaft are arranged at two ends of the rotating shaft, the rotating shaft is fixedly buckled and pressed below the upper cross beam 3111 through the U-shaped bolts, ball bearings are arranged between the rotating shaft and the

counterweight wheels

33, 33 ', 33 ", 33'", the

counterweight wheels

33, 33 ', 33 ", 33'" rotate along the rotating shaft through the ball bearings, two ends of the rotating shaft are buckled and fixed below the upper cross beam 3111 through the U-shaped bolts, so that the installation is convenient, in addition, the stress acting point of the rotating shaft is always positioned at the bottom surface of the upper cross beam 3111 during the traction process of the counterweight rope, the damage caused by the overlarge stress of the U-shaped bolts during the work process is avoided, and the U-shaped bolts only need to play a limiting role here.

As a preferred embodiment, two shields are disposed on the top of the upper cross beam 3111, a plurality of rope-blocking angle steels are disposed on the bottom of the upper cross beam 3111, the shields and the rope-blocking angle steels are both installed between the two upper cross beams 3111, the shields are covered over the

counterweight wheels

33, 33 ', 33 ", 33'", the structural strength of the rectangular frame 311 can be further stabilized by disposing the shields and the rope-blocking angle steels in the upper cross beam 3111, the two upper cross beams 3111 are always disposed in parallel, the rope-blocking angle steels are disposed on both sides of each

counterweight wheel

33, 33 ', 33 ", 33'", the distance between the rope-blocking angle steels and the

counterweight wheels

33, 33 ', 33 ", 33'" is 5mm to 10mm, and the rope-blocking effect is achieved on the counterweight ropes.

In a preferred embodiment, the rectangular frame 311 is provided with a guide shoe plate, and the guide shoe 26 is fixedly mounted on the rectangular frame 311 through the guide shoe plate. The guide shoe 26 comprises a mounting plate 261 attached to the guide shoe plate, a reinforcing rib 262 arranged on the mounting plate 261, an adjusting mechanism 263 arranged on the reinforcing rib 262, and a sliding block 264 adjusted by the adjusting mechanism 263, wherein a sliding groove 2641 is formed in the sliding block 264, so that when the rectangular frame 311 is slightly deformed, a worker can adjust the relative mounting positions of the guide shoe 26 and the guide shoe plate through the adjusting mechanism 263 without repairing or replacing the whole heavy frame 31, and the maintenance cost is reduced.

As a preferred embodiment, the adjusting base 314 is composed of two supporting plates 3141 at the top and the bottom, and two supporting ribs 3142 arranged between the two supporting plates 3141, the supporting ribs 3142 are in a channel steel structure, the two supporting ribs 3142 are arranged opposite or back to back, the supporting strength of the adjusting base 314 is effectively improved, the adjusting base 314 is provided with a plurality of supporting ribs, and the adjusting base 314 is arranged at the middle position right below the mounting area of the counterweight 312.

In a preferred embodiment, the rectangular frame 311 further includes a coupling plate 3114, and the upper cross beam 3111 and the lower cross beam 3112 are both fixedly mounted on the counterweight upright 3113 through the coupling plate 3114. The central column 315 is of an i-shaped structure. The side of the counterweight upright 3113 is provided with an installation groove for installing the counterweight 312, which is arranged at one side of the downward installation area.

In the invention, the counterweight block 312 comprises a metal shell 3121 and a counterweight block 3122 arranged in the metal shell 3121, one end of the metal shell 3121 is open, the inner wall of the metal shell 3121 is matched with the outer wall of the counterweight block 3122, the counterweight block 3122 is sleeved into the metal shell 3121 from the opening of the metal shell 3121, an inserting strip 3123 is arranged at the opening of the metal shell 3121 to lock the counterweight block 3122 in the metal shell 3121, the counterweight block 3122 comprises a fully-closed plastic shell 3124 and a plurality of steel frames 3125 arranged in the plastic shell 3124, two ends of the steel frames 3125 are fixedly supported at two ends of the plastic shell 3124, the plastic shell 3124 is filled with cement, the plastic shell 3124 is provided with a pouring port 3126 for pouring cement into the plastic shell 3124 and an exhaust port 3127 for exhausting gas in the plastic shell 3124. According to the elevator counterweight block 312, the metal shell 3121 is arranged outside the elevator counterweight block 312, the plastic shell 3124 is fully sealed on the inner side of the elevator counterweight block, the filler in the counterweight block 312 cannot fall out in the operation process of the elevator by utilizing the good impact resistance of the metal shell 3121 and combining the good sealing effect of the plastic shell 3124, and the counterweight block 312 is ensured not to be easily deformed in the use process, so that the operation of the elevator is integrally guaranteed.

As a preferred embodiment, the steel frame 3125 includes a main steel rod 31251 and a plurality of branch steel rods 31252, the plurality of branch steel rods 31252 are spaced apart from each other along a length direction of the main steel rod 31251, and a rotation angle α is formed between two adjacent branch steel rods 31252 along an axis of the main steel rod 31251, in this embodiment, three steel frames 3125 are provided, each steel frame 3125 is composed of one main steel rod 31251 and nine branch steel rods 31252, and a rotation angle α =120 ° is formed between two adjacent branch steel rods 31252 along the axis of the main steel rod 31251, so that the steel frame 3125 forms a dendritic structure, thereby integrating the filler in the plastic casing 3124, and improving a structural strength of the filler, which is not easily scattered during use.

As a preferable embodiment, the main steel rod 31251 and the branch steel rod 31252 are connected by a screw thread, the main steel rod 31251 is provided with a threaded hole, the branch steel rod 31252 is provided with an external thread, so that the difficulty in manufacturing the steel frame 3125 is reduced, the main steel rod 31251 and the branch steel rod 31252 are manufactured and processed separately and then assembled, and the length of the main steel rod 31251 can be cut according to the actual size of the weight 312, so that the method has wide versatility, and the branch steel rods 31252 can be screwed into the threaded holes one by one after the main steel rod 31251 is cut, so that the assembly is very simple.

In a preferred embodiment, the steel dividing rod 31252 extends outward perpendicularly to the axis of the main steel rod 31251, but in the present invention, the steel dividing rod 31252 may be disposed at an angle inclined from the axis of the main steel rod 31251, which has the same technical effect as the present embodiment and belongs to the same technical means.

As a preferable embodiment, the end of the plastic housing 3124 is opened with an insertion hole 3128 for inserting the steel frame 3125 into the plastic housing 3124, the insertion hole 3128 includes a circular hole portion for passing the main steel rod 31251 and a long hole portion for passing the divided steel rod 31252, the circular hole portion having a hole diameter matched with the outer diameter of the main steel rod 31251, and the long hole portion having a width and a length matched with the outer diameter and the length of the divided steel rod 31252, respectively, when the steel frame 3125 is inserted into the plastic housing 3124, the end of the main steel rod 31251 is inserted from the circular hole portion, the steel frame 3125 is rotated such that the first divided steel rod 31252 is aligned in parallel with the long hole portion, then the first divided steel rod 31252 is inserted into the plastic housing 3124 from the long hole portion, the steel frame 3125 is gradually extended inward, when the second divided steel rod 31252 is close to the insertion hole 3128, the steel frame 3125 is rotated such that the second divided steel rod 31252 is aligned in parallel with the long hole portion, and then the second divided steel rod 31252 is inserted into the plastic, and analogizing in sequence, after all the sub-steel rods 31252 enter the plastic casing 3124, the two ends of the steel frame 3125 are supported at the two ends of the plastic casing 3124, and the insertion holes 3128 are blocked by plugs.

In a preferred embodiment, the inner cavity of the plastic casing 3124 includes an access cavity 3129 with two gradually expanding ends and a main weight cavity 3120 disposed between the two access cavities 3129, the steel dividing rods 31252 are all distributed in the main weight cavity 3120, and in the present invention, the distance between two ends of the steel frame 3125 and its corresponding nearest steel dividing rod 31252 should be greater than or equal to the length L of the access cavity 3129₁And the distance between two adjacent steel bars 31252 is greater than the length L of the access cavity 3129₁Therefore, the steel frame 3125 is inserted into the plastic housing 3124, when the next steel bar 31252 rotates through the long hole portion, the previous steel bar 31252 enters the main weight cavity 3120, and it is avoided that the previous steel bar 31252 is in the access cavity 3129, the steel frame 3125 cannot actively drive due to the interference between the previous steel bar 31252 and the inner wall of the access cavity 3129 caused by the rotation, and the length of the outward extension of the steel bar 31252 should be less than the width L of the main weight cavity 3120₂Half of that.

In the present invention, the plastic housing 3124 and the metal housing 3121 are formed as an integral structure, and are manufactured by cutting a main steel bar 31251 having a desired length, screwing a sub-steel bar 31252 into a screw hole of the main steel bar 31251 to form a steel frame 3125, inserting the steel frame 3125 into the metal housing 3121 from an insertion hole 3128, inserting an end portion of the main steel bar 31251 from a circular hole portion, rotating the steel frame 3125 such that a first sub-steel bar 31252 is aligned in parallel with a long hole portion, then inserting the first sub-steel bar 31252 into the plastic housing 3124 from the long hole portion, gradually extending the steel frame 3125 inwardly, rotating the steel frame 3125 such that a second sub-steel bar 31252 is aligned in parallel with the long hole portion when the second sub-steel bar 31252 is close to the insertion hole 3128, then inserting the second sub-steel bar 31252 into the plastic housing 3124 from the long hole portion, and so on, after all the sub-steel bars 31252 are inserted into the plastic housing 3124, supporting both ends of the plastic housing 3125 at both ends of the plastic housing 3124, the insertion hole 3128 is blocked by a plug, then filler is introduced into the pouring port 3126 to make the inner cavity of the whole plastic housing 3124 full of the filler, the pouring port 3126 and the exhaust port 3127 are blocked by the plug, the whole plastic housing 3124 is in a totally closed state, if the filler is a substance which is solidified in a natural state, after the filler is solidified stably, the pouring port 3126 and the exhaust port 3127 are blocked by the plug to form a balancing weight 3122, then the balancing weight 3122 is put in from the opening of the metal housing 3121, and finally the inserting strip 3123 is inserted for locking.

In the present invention, the pressing mechanism 313 includes two fitting plates 3131 respectively fixedly mounted on the two connecting channel steels 314, and a supporting rod 3132 connected to the two fitting plates 3131, each fitting plate 3131 is provided with two push rods 3138, one end of the push rod 3138 penetrates through the fitting plate 3131 from top to bottom, the bottom of the push rod 3138 is connected to a horn-shaped pressing member 3133, the push rod 3138 is provided with an external thread, and the fitting plate 3131 and the push rod 3138 are locked and connected by a nut adjusting component 3134.

In a preferred embodiment, the attachment plate 3131 includes a vertical plate attached to the connection channel 314 and two flat plates perpendicular to the connection plate 214, an inclined plate for enhancing structural strength is disposed between the vertical plate and the flat plate, and a triangular stable structure is formed between the vertical plate, the flat plate, and the inclined plate, so that the structural strength of the attachment plate 3131 is improved, and the pressing mechanism 313 is prevented from being damaged by impact during the operation of the counterweight housing 31. Nut adjusting part 3134 is including the lock nut I and the lock nut II of mutually supporting locking, lock nut I sets up in dull and stereotyped top, lock nut II sets up in dull and stereotyped below, and the lower terminal surface of lock nut I is conical surface boss structure, and the upper end of lock nut II is conical surface shrinkage pool structure, and the lock nut structure through conical surface cooperation structure makes the fixity reinforcing of ejector pin 3138, can not take place to become flexible because the shake that the elevator operation in-process produced, keeps the compression state to pouring weight 312.

As a preferred embodiment, a stopper ring 3135 for limiting four top rods 3138 is disposed at the bottom end of the top rod 3138, the pressing member 3133 is disposed below the stopper ring 3135, the stopper ring 3135 is preferably circular and may be square-ring-shaped, the circular stopper ring 3135 has a stronger limiting effect on the top rod 3138, the top rod 3138 is not easily displaced, a limiting component is also disposed at the upper half of the top rod 3138 to ensure the verticality and the accuracy of the installation position of the top rod 3138, in this embodiment, the limiting component includes an arc-shaped connecting rod 3136 and a straight rod 3137, both ends of the arc-shaped connecting rod 3136 and the straight rod 3137 are connected to the two top rods 3138, and the straight rod 3137 is disposed on the chord of the arc-shaped connecting rod 3136 to limit both ends of the top rod 3138.

In this embodiment, one end of the hoist rope is fixed to the counterweight head frame 17 ', the hoist rope passes through the counterweight sheave 33, the counterweight fixed sheave 131, the counterweight sheave 33 ', the counterweight fixed sheave 131 ', the counterweight sheave 33 ", the counterweight fixed sheave 131", the counterweight sheave 33 ' ", the guide sheave 18, the hoisting machine 15, the car top sheave 25, the car fixed sheave 141 ', the car top sheave 25 ', the car fixed sheave 142 ', the car top sheave 25", the car fixed sheave 143 ', the car top sheave 25 ' ", and the other end of the hoist rope is fixed to the car head frame 17.

Example two:

the implementation of the present embodiment is substantially the same as that of the first embodiment, and the differences are as follows: as shown in fig. 25 and 26, in the counterweight device 3, two counterweight frames 31 are arranged in a double-row structure, elastic guide shoes 26 ' are arranged at four top corners of the rectangular frame 311, the elastic guide shoes 26 ' include an installation seat 261 ' and an elastic slider 262 ', the installation seat 261 ' is connected with the elastic slider 262 ' through a spring 263 ', the elastic slider 262 ' is installed in the installation seat 261 ', and the elastic slider 262 ' is provided with a sliding groove 2631 ' for being matched with an elevator counterweight guide rail.

Example three:

the implementation of this embodiment is substantially the same as that of the first embodiment, and the difference is that, as shown in fig. 27, a set of safety tongs 27 is also arranged at the bottom of the auxiliary car frame 22, a lifting mechanism 4 is arranged between the safety tongs 27 for linkage, the lifting mechanism 4 comprises two short shafts 41 crossing the main car frame 21 and the auxiliary car frame 22, two pull handles 42 arranged at the ends of the two short shafts 41, a stay 43 connecting the two pull handles 42, two ends of the stay 43 are respectively connected with two short shafts 41 through two pull handles 42, two ends of each short shaft 41 are sleeved with a pull handle 44 for pulling the safety gear 27, the handle 44 is arranged right above the safety gear 27, the middle part of the stay 43 is sleeved with a return spring 45, one end of the return spring 45 is provided with a clamping plate 46, the other end of the return spring is fixedly connected with the stay 43, and the clamping plate 46 is fixedly arranged on the main car frame 21.

In this embodiment, the car frame upright 212 is of a channel steel structure, an open slot is formed outwards on the car frame upright 212, the handle 44 extends out of the open slot, one end of the handle 44 extending out of the open slot is connected with a lifting rod 47, and the lifting rod 47 extends along the open slot and is connected with the safety gear 27.

In the embodiment, a rotating handle 48 for driving the pulling mechanism to move is sleeved on one of the short shafts 41, and the rotating handle 48 is of a Z-shaped structure. The two pull handles 42 extend above and below the two short shafts 41, and two ends of the stay 43 are connected with the ends of the two pull handles 42 respectively and are arranged obliquely. The main car frame 21, the two pull handles 42 and the stay 43 are connected to form a link mechanism, and the main car frame 21 is a fixed rod. The outer wall of the stay 43 is provided with full threads, a positioning nut 49 for positioning the return spring 45 is arranged in the stay 43, and two ends of the return spring 45 are fixed through a clamping plate 46 and the positioning nut 49 respectively.

In a preferred embodiment, the short shaft 41 is positioned between the main car frame 21 and the short shaft 41 is positioned between the sub car frame 22. A lifting rod 47 is arranged between the handle 44 and the safety gear 27, and the handle 44 is connected with the safety gear 27 through the lifting rod 47 to drive the safety gear 27 to move.

Example four:

in order to ensure the safe operation of the large-load cargo lift, the embodiment provides a safe operation mode of the large-load cargo lift, which comprises the following parts: a tension sensor is arranged at the end part of each elevator dragging rope, and the tension value F of each elevator dragging rope is obtained in real time through the tension sensor_SheetAnd for each pulling force value F_SheetSumming to obtain a tensile value F_{General assembly}(ii) a Then F is mixed_SheetAnd F_{General assembly}Inputting the data into an elevator controller; the elevator controller will F_SheetAnd F_{General assembly}Respectively carrying out comparison calculation with a system set value to obtain a comparison result; the system set values include: the elevator empty load tension value of a single hoisting rope, the tension value generated by the self weight of the single hoisting rope and the elevator rated load tension value are obtained; and the elevator controller correspondingly executes an elevator rope loosening monitoring program, a rope breaking monitoring program or an overload monitoring program according to the comparison result. The specific program execution flow is as follows:

1. and (5) monitoring the rope loosening of the elevator.

When the tension value F of a single hauling rope_SheetWhen the elevator is in 80-85% of the no-load tension value of the elevator with a single hoisting rope, executing an elevator rope loosening monitoring program, and judging whether the elevator is in a flat-layer position: if yes, automatically opening the door and outputting a rope loosening alarm instruction; if not, the elevator is operated to the nearest flat level position, then the door is automatically opened, and a rope loosening alarm command is output.

After the rope loosening alarm command is output, the tension value is singly adjusted to 90-120% of the no-load tension value of the elevator, preferably 110% by automatically adjusting the tension device of the hauling rope, then the rope loosening alarm command is removed, and the normal operation of the elevator is recovered.

2. And (5) monitoring the broken rope of the elevator.

When F is present_SheetAnd when the tension value is smaller than the tension value generated by the self weight of the single hoisting rope set by the system, executing an elevator rope breakage monitoring program, outputting a rope breakage alarm instruction, forbidding the elevator to operate and starting a rope breakage alarm. And after the maintenance personnel replace the hoisting ropes of the elevator, the rope breakage alarm instruction is released, and the normal operation of the elevator is recovered.

In addition, when one hoisting rope is in a rope breaking state, whether the tension value of each of the other elevator hoisting ropes is within a safety coefficient is judged, if yes, the elevator is operated to the nearest landing door flat floor in a slow moving mode, the door is automatically opened, a rope breaking alarm is output, and the elevator is forbidden to operate. And simultaneously sends a signal to an elevator monitoring center so that maintenance personnel can replace the hoisting rope in time.

3. And (5) overload monitoring program.

When each elevator hoisting rope is F_{General assembly}When the tensile force value is more than or equal to 100 percent of the rated load tensile force value of the elevator, the operation is executedAnd an overload monitoring program outputs an elevator overload instruction, prohibits the elevator from running and sends an overload alarm signal, and the landing door keeps an open state. When each elevator hoisting rope is F_{General assembly}And when the pulling force value is less than 100 percent of the rated load pulling force value of the elevator, the overload alarm signal is removed, and the normal operation of the elevator is recovered.

The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by substantially the same means are within the protection scope of the present invention.

Claims

1. The utility model provides a big load goods lift, includes the computer lab at top, the sedan-chair frame and the counterweight of connecting through the towline, its characterized in that:

2. A large capacity freight elevator as claimed in claim 1, wherein: the counterweight block comprises a metal shell and a counterweight block arranged in the metal shell, wherein one end of the metal shell is open, the inner wall of the metal shell is matched with the outer wall of the counterweight block, the counterweight block is sleeved in the metal shell from the opening of the metal shell, an inserting strip is arranged at the opening of the metal shell to lock the counterweight block in the metal shell, the counterweight block comprises a fully-closed plastic shell and a plurality of steel frames arranged in the plastic shell, two ends of each steel frame are fixedly supported at two ends of the plastic shell, cement is filled in the plastic shell, and the plastic shell is provided with a pouring gate for pouring the cement into the plastic shell and an exhaust port for exhausting gas in the plastic shell.

3. A large capacity freight elevator as claimed in claim 1, wherein: hold-down mechanism all is equipped with two connecting rods including two mounting panels of difference fixed mounting on two crossbeams, the bracing piece of connecting two mounting panels, on every mounting panel, connecting rod one end is from last to passing the mounting panel down, and the bottom of connecting rod is connected with the press part of loudspeaker form, and the external screw thread has been seted up to the connecting rod, through nut adjusting part locking connection between mounting panel and the connecting rod.

4. A large capacity freight elevator as claimed in any one of claims 1 or 3, wherein: two are double structure setting to heavily putting up, and four apex angle departments of rectangular frame are equipped with elasticity and lead boots, elasticity is led boots and is included mount pad, slider, pass through spring coupling between mount pad and the slider, the slider is installed in the mount pad, the slider is offered and is used for with the elevator to heavy guide rail complex spout.

5. A large capacity freight elevator as claimed in claim 1, wherein: the bottom of hauler is equipped with the main frame, the hauler passes through the main frame and installs on main spandrel girder, and the tip card of one of them group car bearing beam subassembly is gone into the main frame internal fixation, and the tip of another group car bearing beam subassembly is equipped with the car fag end frame and fixes.

6. A large capacity freight elevator as claimed in claim 1, wherein: the safety device is characterized in that a set of safety tongs is also arranged at the bottom of the auxiliary car frame, a lifting mechanism is arranged between the safety tongs and linked with each other, the lifting mechanism comprises two short shafts crossing the main car frame and the auxiliary car frame, two pull handles arranged at the end parts of the two short shafts, and a stay connected with the two pull handles, the two ends of the stay are respectively connected with the two short shafts through the two pull handles, the two ends of each short shaft are sleeved with handles used for lifting the safety tongs, the handles are arranged right above the safety tongs, the middle part of the stay is sleeved with a reset spring, one end of the reset spring is provided with a clamping plate, the other end of the reset spring is fixedly connected with the stay, and the clamping plate is fixedly arranged.