CN211073670U

CN211073670U - Compact type combined rack type elevator with low starting point and long stroke

Info

Publication number: CN211073670U
Application number: CN201922027849.9U
Authority: CN
Inventors: 周炳露; 张磊; 蒋清; 邵正军
Original assignee: Haode Technology Co Ltd
Current assignee: Haode Technology Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-24
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a compact low-starting-point long-stroke combined rack-type elevator, which comprises a main body structure and accessories for supplying power and control signals to the main body structure, wherein the main body structure comprises a fixed bracket component, a sliding bracket power component and a lifting load platform component; the lifting load platform assembly slides on the sliding bracket assembly. The compact combined rack-and-pinion elevator with the low starting point and the long stroke has the advantages that the two sets of rack-and-pinion mechanisms are combined into an integrated lifting structure, the lifting starting point is coincided with the lowest point of the elevator body, the lifting stroke is about 2 times of the length of the elevator body, and the compact combined rack-and-pinion elevator is compact in structure and free of redundant space.

Description

Compact type combined rack type elevator with low starting point and long stroke

Technical Field

The utility model belongs to the technical field of the lifting of robot structure application, the subdivision is patrolled and examined type robot end box, specifically is a combination rack elevator of long stroke of compact low starting.

Background

The inspection robot takes a mobile robot as a carrier, a visible light camera, an infrared thermal imager and other detection instruments as a load system, and an embedded computer as a software and hardware development platform of a control system, and has the functions of obstacle detection and identification, autonomous operation planning, autonomous obstacle crossing, autonomous inspection of a line corridor, inspection of images and data, background inspection operation management, analysis and diagnosis and the like.

The data center inspection robot applied to the indoor machine room advances in a fixed corridor according to a preset planning route, and a detection instrument in a terminal box is started at a scanning position of a control cabinet to prepare for detecting the data center control cabinet of the station.

The lifting mechanism utilizes a mechanical structure to vertically convey the tail end box to the high position from the low position, the whole lifting process is only changed in the height direction, the detecting instrument can gradually detect the controller panels arranged up and down, the visual algorithm cannot be influenced, and the visual error caused by oblique irradiation of the grid space does not exist.

The mechanical structure of the lifting mechanism can be divided into: the combined connecting rod lifting mechanism, the ball screw lifting mechanism, the chain or belt lifting mechanism and the gear rack lifting mechanism are applied to the inspection robot of the machine room data center control cabinet, and due to the fact that all panel positions of the control cabinet need to be detected completely and the limitation of the height drop and the lowest position of the super-long distance of 2 meters in the middle of the control cabinet, the general lifting mechanism cannot meet the use requirement. The long-stroke combined connecting rod lifting mechanism occupies a large volume, and is not suitable for a machine room data center inspection robot with space requirements, a long-stroke ball screw or a two-section combined ball screw, and the weight and the space volume cannot be considered and are also not suitable. The remaining chain or belt lifting mechanisms and rack and pinion lifting mechanisms are two possible solutions.

The patent of robot patrols and examines that current is applicable to computer lab data center application scene, the patent content of lifting unit is chain formula elevating system scheme in its patent point.

Patent numbers: CN 108436943A equipment inspection robot

This patent and the utility model discloses a do not have any patent point coincidence and can reference for reference the comparison content, only work object and application scene are similar. In the patent point, the lifting mechanism adopts a chain type structure, the whole mechanism consists of six parts, namely a first-stage fixed support, a first-stage movable support, a second-stage movable support, a chain wheel shaft and a motor, and the first-stage movable support is fixed on the first-stage fixed support by a guide rail slide block and can move up and down. The second-stage moving support is fixed on the first-stage moving support through a guide rail sliding block and can move up and down. The chain is supported by each chain wheel shaft and fixed with the upper end and the lower end of the secondary moving support, the chain is driven by the motor to drive the secondary moving support to move upwards to reach the highest limit point of the primary moving support, the primary moving support is pushed to continue to move upwards integrally until the primary moving support reaches the highest limit point of the primary fixing support, the secondary moving support reaches the highest point of the whole lifting mechanism, the motor rotates reversely, and the secondary moving support sequentially returns to the lowest point in a reverse direction to complete the whole lifting process.

Analysis of the disadvantages of this patent:

1. the structure is complex; 2. difficulty in installation; 3. debugging is difficult; 4. is not beneficial to the later maintenance.

The cause is as follows:

1. the structure is complex, and due to the structural requirement that the chain needs to be steered, at least more than 5 sets of chain wheel shafts and other accessories are required to be installed as supports, so that the smooth operation and the proper tightness of the chain can be ensured, and the parts for forming the whole set of lifting mechanism are numerous and the structure is complex;

2. the chain is difficult to install, all related structures need to be connected in series, and the chain can be installed and locked smoothly only by at least 2 persons in coordination;

3. the debugging is difficult, because the installation errors of a plurality of sets of chain wheel shafts and the long-distance chain clearance errors cause that the chain lengths required by the lifting structures of each set of chains are different, the chains are required to be independently prepared for connection and assembly, the generated tightness is inconsistent, and the operation and debugging work of the whole set of mechanism is time-consuming and labor-consuming;

4. be unfavorable for later maintenance, the chain will be in the same place whole set of elevating system series connection, will produce alternately with arranging and assembling of pencil and interfere, be unfavorable for the hardware and the pencil maintenance upgrading work in later stage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at designing and making a combination rack formula lift of low starting point of compact, make the minimum point between lift interval and the coincidence of the minimum of lift body, the lift height reaches about 2 meters, the lift body is within 1 meter, with the detection height that satisfies most computer lab data center switch board and the interval requirement of detection, it is compacter light to make lift overall structure simultaneously, and with motor harness, the tow chain, peripheral equipment such as motor drive combines into a complete module, reduce the manufacturing cost of lift, improve equipment and debugging efficiency, and make things convenient for the maintenance upgrading work in later stage.

The utility model adopts the technical proposal that: a compact combined rack-and-pinion elevator with low starting point and long stroke comprises a main body structure and accessories for supplying power and controlling signals to the main body structure,

the main structure comprises a fixed support assembly, a sliding support power assembly and a lifting load platform assembly, wherein the sliding support assembly and the fixed support assembly are both vertically arranged, and the sliding support power assembly is fixed at the tail end of the sliding support assembly and drives the sliding support assembly to integrally lift to the top end of the fixed support assembly by combining with the fixed support assembly; the lifting load platform assembly slides on the sliding support assembly;

the fixed support assembly comprises a fixed support upper base plate, a fixed support auxiliary plate, a fixed support lower base plate, a fixed support supporting plate, a first linear guide rail and a first lifting rack, the lower ends of the fixed support auxiliary plate and the fixed support supporting plate are fixed on the fixed support supporting plate, the fixed support lower base plate is positioned between the fixed support auxiliary plate and the fixed support supporting plate and is fixed on the fixed support supporting plate, the first linear guide rail and the first lifting rack are both arranged on two side plate surfaces of the fixed support supporting plate, and the lower ends of the first linear guide rail and the first lifting rack are both positioned on the fixed support lower base plate; the upper bottom plate of the fixed bracket is arranged at the upper ends of the auxiliary plate of the fixed bracket and the supporting plate of the fixed bracket, and a first cushion pad is arranged on the lower end surface of the upper bottom plate of the fixed bracket and the upper end surface of the lower bottom plate of the fixed bracket to play a role in buffering the upper and lower limit of the power assembly of the sliding bracket;

the sliding support assembly comprises a second linear guide rail, a second lifting rack, a sliding support upper base plate, a sliding support supporting plate and a sliding support lower base plate, the sliding support supporting plate is a vertical plate, the sliding support upper base plate and the sliding support lower base plate are fixed on the upper end surface and the lower end surface of the sliding support supporting plate, the second linear guide rail and the second lifting rack are both arranged on two side plate surfaces of the sliding support supporting plate, and the lower ends of the second linear guide rail and the second lifting rack are both positioned on the sliding support supporting plate; a second cushion pad is arranged on the lower end face of the upper base plate of the sliding support and the upper end face of the lower base plate of the sliding support, so that the upper and lower limiting buffer effect of the lifting load platform assembly is achieved;

the sliding support power assembly comprises a first lifting motor, a first lifting gear, a plurality of first linear sliders and a sliding support lifting plate, the sliding support lifting plate comprises a left part and a right part, the left half part of the sliding support lifting plate is a first motor mounting support of the first lifting motor, the right half part of the sliding support lifting plate is a slider seat for mounting the first linear sliders, the sliding support lifting plate is fixed with a sliding support supporting plate through the side end face of the sliding support of the slider seat, the plurality of first linear sliders are mounted in the slider seat in series and connected with a second linear guide rail in a matching manner, the first lifting motor is mounted on the first motor mounting support, the first lifting gear is mounted on a motor shaft of the first lifting motor, and the first lifting gear is externally meshed with a first lifting rack;

the lifting load platform assembly comprises a second lifting motor, a second lifting gear, a plurality of second linear sliders, a load platform lifting plate and a tail end box adapter plate, the load platform lifting plate comprises a left part and a right part, the left part of the load platform lifting plate is a second motor mounting bracket of the second lifting motor, the right part of the load platform lifting plate is a load platform slider mounting plate for mounting the second linear sliders, the second lifting motor is mounted on the second motor mounting bracket, the second lifting gear is mounted on a motor shaft of the second lifting motor, the second lifting gear is externally engaged with a second lifting rack, the second linear sliders are mounted on one side face of the load platform slider mounting plate in series and are in sliding fit with the second linear guide rail, and the tail end box adapter plate is vertically fixed on the other side face of the load platform slider mounting plate.

The utility model discloses the lift, low starting point makes the terminal box can move the position of minimum. And a gear rack mechanism is adopted, a second lifting rack is fixed, and a second lifting motor and a second lifting gear integrally move, so that the tail end box can be lowered to the lowest point position.

The utility model discloses lift, long stroke lets the stroke of end box reach the doubly of lift total height: the two sets of gear and rack combined mechanism and the two driving devices are adopted to sequentially drive the tail end box to be lifted to the highest point position, so that the design parameter requirement of the lifting height is ensured, the lifter is enabled to keep a reasonable machine body height, and the problem of unstable gravity center is avoided.

The utility model is compact and light, reduces the weight of the whole elevator and reduces the structure volume as much as possible; the fixed support supporting plate and the sliding support supporting plate are combined together, only a movement gap is reserved between the fixed support supporting plate and the sliding support supporting plate, the two sets of gear rack lifting and guiding mechanisms are arranged and respectively installed on the fixed support supporting plate and the sliding support supporting plate, and the two sets of lifting and guiding mechanisms are respectively connected by the sliding support lifting plate and the load platform lifting plate in a combined mode, so that the whole lifting structure is more compact, and any redundant space is not reserved.

The elevator of the utility model has high structural strength, so that the whole elevator structure has reliable connection strength; a fixed support auxiliary plate is added on the fixed support component, so that the structure of the fixed support component is firmer, and space is reserved for installing two sets of motor drivers. A plurality of first linear sliding blocks are arranged on the sliding support power assembly, and the sliding support assembly is arranged and installed in the vertical direction, so that the strength of the sliding support assembly in the vertical direction is enhanced.

The utility model has the advantages of balanced structure and high stability, which enables the structure part of the lifter to work stably for a long time; two elevator motor, load platform tow chain and sliding support tow chain are installed respectively the utility model discloses the lift both sides increase the force stability of operation in-process lift, and the end box is installed with two elevator motor the utility model discloses the front and back position of lift has improved the stability of end box operation in-process.

Preferably, the accessories of the technical proposal of the utility model comprise a wiring harness wiring groove, a load platform drag chain, a sliding bracket drag chain, two motor drivers, a load platform drag chain fixed bottom plate, a load platform drag chain moving bottom plate, a sliding bracket drag chain fixed bottom plate and a sliding bracket drag chain moving bottom plate, wherein the load platform drag chain fixed bottom plate is arranged at the middle position of a sliding bracket supporting plate, the load platform drag chain moving bottom plate is arranged on a load platform lifting plate, the sliding bracket drag chain fixed bottom plate is arranged at the middle position of a fixed bracket auxiliary plate, the sliding bracket drag chain moving bottom plate is arranged on a sliding bracket lifting plate, the upper end and the lower end of the load platform drag chain are respectively arranged on the load platform drag chain fixed bottom plate and the load platform drag chain moving bottom plate, the upper end and the lower end of the sliding bracket drag chain are respectively arranged on the sliding bracket drag chain fixed bottom plate and the sliding bracket drag chain moving, the upper end and the lower end of the wiring harness wiring groove are respectively arranged on the load platform drag chain fixing bottom plate and the sliding support lifting plate, the two motor drivers are both fixed on the fixing support auxiliary plate, and the two motor drivers are respectively electrically connected with the first lifting motor and the second lifting motor through connecting wires.

To the utility model discloses technical scheme's preferred, two motor driver upper and lower floor's setting, and two motor driver all are located the lower part of fixed bolster accessory plate.

Right the utility model discloses technical scheme's preferred, the combination rack formula lift of the long stroke of compact low starting point still includes the end box, and the end box is fixed on the end box keysets, and the end box is the carrier of lift, all kinds of detecting instrument of the inside installation.

According to the technical scheme of the utility model, the accessories further comprise wire harnesses, wherein the wire harnesses comprise a terminal box wire harness and two motor wire harnesses, the two motor wire harnesses are led out from the terminal box and are respectively connected into two motor drivers through a load platform drag chain and a sliding support drag chain; the end box wire harness leads out of the elevator from the end box.

It is right to the utility model discloses technical scheme's preferred, terminal box pencil comprises a power cord and a signal line, and the motor pencil comprises cable conductor for a motor, a cable conductor for electromagnetic braking and a cable conductor for encoder.

It is right to the utility model discloses technical scheme's preferred, compact low starting point long stroke's combination rack formula lift still includes the lift platform, and the fixed bolster subassembly passes through the fixed bolster layer board vertical to be fixed on the lift platform. The lift platform does the utility model discloses the supporter of lift.

The utility model has the advantages that:

1. the compact combined rack type elevator with the low starting point and the long stroke has the advantages of simple and compact structure, small number of parts, low manufacturing cost and quick assembly and debugging.

2. This compact low-start long-stroke combined rack-and-pinion elevator, rack and pinion elevating system compare in chain mechanism, and reliable and stability are higher.

3. This combination rack formula lift of long stroke of low starting point of compact, overall structure integrated level is high, with elevator motor, pencil, tow chain, driver and elevating system reasonable combination, occupies littleer space, is favorable to modular production and assembly and debugging, also is favorable to later stage fortune dimension maintenance.

Drawings

Fig. 1 is an overall view of an elevator.

Fig. 2 is an exploded view of the elevator.

Fig. 3 is a schematic structural view of the fixing bracket assembly.

Fig. 4 is a schematic structural view of the sliding bracket assembly.

Fig. 5 is a schematic structural view of a sliding bracket power assembly.

Fig. 6 is a detail view of the sliding support lifter plate.

Fig. 7 is a schematic structural view of the elevating load platform assembly.

Fig. 8 is a detail view of the load platform lifter plate.

Fig. 9 is a cross-sectional view of the elevator.

Fig. 10 is a schematic view of the lowest position of the end box in the elevator.

Fig. 11 is a schematic view of an intermediate position of an end box in the elevator.

Fig. 12 is an upper schematic view of the highest position fracture line of the end box in the elevator.

Fig. 13 is a schematic view of the middle of the highest position fracture line of the end box in the elevator.

Fig. 14 is a lower schematic view of the highest position fracture line of the end box in the elevator.

Detailed Description

The technical solution of the present invention is explained in detail below, but the scope of protection of the present invention is not limited to the embodiments.

In order to make the disclosure of the present invention more comprehensible, the following description is further made in conjunction with the accompanying drawings 1 to 14 and the detailed description.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

As shown in fig. 1, the compact, low-starting-point, long-stroke combination rack-and-pinion elevator of the present embodiment includes a main structure and accessories for supplying power and control signals to the main structure.

As shown in fig. 1, 2 and 9, the main structure includes a fixed bracket assembly 1, a sliding bracket assembly 2, a sliding bracket power assembly 3 and a lifting load platform assembly 4, the sliding bracket assembly 2 and the fixed bracket assembly 1 are both vertically arranged, the sliding bracket power assembly 3 is fixed at the end of the sliding bracket assembly 2 and drives the sliding bracket assembly 2 to integrally lift to the top end of the fixed bracket assembly 1 by combining the fixed bracket assembly 1; the elevating load platform assembly 4 slides on the sliding bracket assembly 2.

As shown in fig. 3, the fixing bracket assembly 1 includes a fixing bracket upper base plate 16, a fixing bracket auxiliary plate 17, a fixing bracket lower base plate 18, the fixing support comprises a fixing support supporting plate 19, a fixing support supporting plate 110, a first linear guide rail 111 and a first lifting rack 112, wherein the fixing support auxiliary plate 17 and the fixing support supporting plate 110 are two vertical straight plates, the fixing support auxiliary plate 17 is used for increasing the rigidity and the strength of the fixing support assembly 1 in the vertical direction, the lower ends of the fixing support auxiliary plate 17 and the fixing support supporting plate 110 are fixed on the fixing support supporting plate 19, a fixing support lower bottom plate 18 is positioned between the fixing support auxiliary plate 17 and the fixing support supporting plate 110 and fixed on the fixing support supporting plate 110, the first linear guide rail 111 and the first lifting rack 112 are both arranged on two side plate surfaces of the fixing support supporting plate 110, and the lower ends of the first linear guide rail 111 and the first lifting rack 112 are both positioned on the fixing support lower bottom plate 18; the fixed bracket upper base plate 16 is arranged at the upper ends of the fixed bracket auxiliary plate 17 and the fixed bracket supporting plate 110, and a first cushion pad 113 is arranged on the lower end surface of the fixed bracket upper base plate 16 and the upper end surface of the fixed bracket lower base plate 18, so that the up-and-down limiting buffering effect on the sliding bracket power assembly 3 is achieved.

The elevator has high structural strength, so that the whole elevator structure has reliable connection strength; a fixed bracket auxiliary plate 17 is added on the fixed bracket component 1, so that the structure of the fixed bracket component 1 is firmer, and space is reserved for installing two sets of motor drivers 15. A plurality of first linear sliding blocks 33 are arranged on the sliding support power assembly 3, and the plurality of first linear sliding blocks 33 are arranged in the vertical direction, so that the strength of the sliding support assembly 2 in the vertical direction is enhanced.

As shown in fig. 4, the sliding bracket assembly 2 includes a second linear guide rail 21, a second lifting rack 22, a sliding bracket upper base plate 24, a sliding bracket support plate 25 and a sliding bracket lower base plate 26, the sliding bracket support plate 25 is a vertical plate, the sliding bracket upper base plate 24 and the sliding bracket lower base plate 26 are fixed on the upper and lower end faces of the sliding bracket support plate 25, the second linear guide rail 21 and the second lifting rack 22 are both installed on two side plate faces of the sliding bracket support plate 25, and the lower ends of the second linear guide rail 21 and the second lifting rack 22 are both positioned on the sliding bracket support plate 25; and a second cushion pad 23 is arranged on the lower end surface of the upper bottom plate 24 of the sliding support and the upper end surface of the lower bottom plate 26 of the sliding support, and plays a role in buffering the upper limit and the lower limit of the lifting load platform assembly 4.

As shown in fig. 5, the sliding support power assembly 3 includes a first elevating motor 31, a first elevating gear 32, four first linear blocks 33, and a sliding support elevating plate 34.

As shown in fig. 6, the sliding support lifting plate 34 is the most important part of the sliding support power assembly 3, and the sliding support lifting plate 30 skillfully combines one first lifting motor 31 and four first linear sliders 33 and is simultaneously connected with the sliding support assembly 2. The sliding support lifting plate 34 comprises a left part and a right part, the left half part of the sliding support lifting plate 34 is a first motor mounting support 35 of a first lifting motor 31, the right half part of the sliding support lifting plate 34 is a slider seat 36 for mounting a first linear slider 33, the sliding support lifting plate 34 is fixed with a sliding support supporting plate 25 through a sliding support side end face 37 of the slider seat 36, the four first linear sliders 33 are installed in the slider seat 36 in series and are connected with a second linear guide rail 21 in a matching mode, the four first linear sliders 33 are vertically arranged and installed, and the supporting strength in the vertical direction is improved. The first lifting motor 31 is installed on the first motor installation bracket 35, the first lifting gear 32 is installed on a motor shaft of the first lifting motor 31, and the first lifting gear 32 is externally engaged with the first lifting rack 112.

The first motor mounting bracket 35 is located at the lower end of the integral part of the sliding bracket lifting plate 34 and is used for mounting the first lifting motor 31, the four first linear sliders 33 are mounted on the mounting surface of the slider seat 36 of the sliding bracket lifting plate 34, and the sliding bracket lifting plate 34 is fixed with the sliding bracket supporting plate 25 through the side end surface 37 of the sliding bracket of the slider seat 36 by screws.

This lift, long stroke lets the stroke of end box reach 2 times of lift total height: the two sets of gear and rack combined mechanism and the two driving devices are adopted to sequentially drive the tail end box 11 to be lifted to the highest point position, so that the design parameter requirement of the lifting height is ensured, the lifter is enabled to keep a reasonable machine body height, and the problem of unstable gravity center is avoided.

The elevator is compact and light, the weight of the whole elevator is reduced, and the structural volume is reduced as much as possible; the fixed support supporting plate 110 and the sliding support supporting plate 25 are combined together, only a movement gap is reserved between the fixed support supporting plate and the sliding support supporting plate, two sets of gear rack lifting and guiding mechanisms are arranged and are respectively installed on the fixed support supporting plate 110 and the sliding support supporting plate 25, and the two sets of lifting and guiding mechanisms are respectively connected by combining two parts, namely the sliding support lifting plate 34 and the load platform lifting plate 44, so that the whole lifting structure is more compact, and no redundant space is reserved.

As shown in fig. 7, the elevating load platform assembly 4 includes a second elevating motor 41, a second elevating gear 42, two second linear slides 43, a load platform elevating plate 44, and an end box adapter plate 45.

As shown in fig. 8, the load platform lifting plate 44 is the most important component of the lifting load platform assembly 4, the load platform lifting plate 44 includes a left portion and a right portion, the left portion of the load platform lifting plate 44 is a second motor mounting bracket 46 of the second lifting motor 41, the right portion of the load platform lifting plate 44 is a load platform slider mounting plate 47 for mounting the second linear slider 43, the second lifting motor 41 is mounted on the second motor mounting bracket 46, the second lifting gear 42 is mounted on a motor shaft of the second lifting motor 41, the second lifting gear 42 is externally engaged with the second lifting rack 22, the plurality of second linear sliders 43 are mounted in series on one side surface of the load platform slider mounting plate 47 and slidably engaged with the second linear guide rail 21, and the end box adapter plate 45 is vertically fixed on the other side surface of the load platform slider mounting plate 47. The elevator has a low starting point, so that the end box can move to the lowest point. The terminal box 11 can be lowered to the lowest point position by adopting a gear rack mechanism, fixing the second lifting rack 22 and integrally moving the second lifting motor 41 and the second lifting gear 42.

As shown in fig. 2 and 10, the accessories are auxiliary components such as wire harnesses, drag chains, drivers and the like, and comprise a wire harness wiring groove 14, a load platform drag chain 5, a sliding bracket drag chain 6, two motor drivers 15, a load platform drag chain fixed bottom plate 7, a load platform drag chain moving bottom plate 8, a sliding bracket drag chain fixed bottom plate 9 and a sliding bracket drag chain moving bottom plate 10, wherein the load platform drag chain fixed bottom plate 7 is arranged at the middle position of a sliding bracket supporting plate 25, the load platform drag chain moving bottom plate 8 is arranged on a load platform lifting plate 44, the sliding bracket drag chain fixed bottom plate 9 is arranged at the middle position of a fixed bracket auxiliary plate 17, the sliding bracket drag chain moving bottom plate 10 is arranged on a sliding bracket lifting plate 34, the upper end and the lower end of the load platform drag chain 5 are respectively arranged on the load platform drag chain fixed bottom plate 7 and the load platform drag chain moving bottom plate 8, the upper end and the lower end of the sliding support drag chain 6 are respectively arranged on a sliding support drag chain fixing bottom plate 9 and a sliding support drag chain moving bottom plate 10, the upper end and the lower end of the wire harness wiring groove 14 are respectively arranged on a load platform drag chain fixing bottom plate 7 and a sliding support lifting plate 34, two motor drivers 15 are both fixed on a fixing support auxiliary plate 17, and the two motor drivers 15 are respectively electrically connected with a first lifting motor 31 and a second lifting motor 41 through connecting wires. Two motor drivers 15 are disposed on the upper and lower layers, and both motor drivers 15 are located on the lower portion of the fixed frame auxiliary plate 17.

The utility model has the advantages of balanced structure and high stability, which enables the structure part of the lifter to work stably for a long time; two elevator motor, load platform tow chain and sliding support tow chain are installed respectively the utility model discloses the lift both sides increase the force stability of operation in-process lift, and terminal box 11 is installed with two elevator motor the utility model discloses the front and back position of lift has improved the stability of terminal box 11 operation in-process.

As shown in fig. 10, the end box 11 is fixed on the end box adapter plate 45, and the end box 11 is a carrier of the elevator and is provided with various detection instruments therein.

As shown in fig. 10, the wire harness 13 includes a terminal box wire harness and two motor wire harnesses, both of which are led out from the terminal box 11 and respectively connected to the two motor drivers 15 through the load platform drag chain 5 and the sliding bracket drag chain 6; the end box wire harness is led out of the elevator from the end box 11. The terminal box wire harness is composed of a power line and a signal line, and the motor wire harness is composed of a cable for a motor, a cable for electromagnetic braking and a cable for an encoder.

As shown in fig. 10, the elevator platform is the supporting body of the elevator of the present invention, and the fixed bracket component 1 is vertically fixed on the elevator platform 12 through the fixed bracket supporting plate 19.

In the present embodiment, the second lift motor 41 and the first lift motor 31 are preferably servo right-angle reduction motors.

The operation process of the elevator of the embodiment is as follows:

the end box 11 is moved from the lowermost position to the intermediate position, as shown in fig. 10 and 11: the sliding support assembly 2, the sliding support power assembly 3 and the lifting load platform assembly 4, and the end box 11 are all in the lowest position, start the second elevator motor 41 on the lifting load platform assembly 4, the second lifting gear 42 moves upwards on the second lifting rack 22, the second linear slide 43 of the lifting load platform assembly 4 moves on the second linear guide rail 21 of the sliding support assembly 2 at the same time, play a role in guiding and positioning up and down, continuously rise, the lifting load platform assembly 4 reaches the second buffer pad 23 position of the lower end face of the sliding support upper base plate 24, and the end box 11 reaches the middle position of the lifter.

The end box 11 is moved from the intermediate position to the uppermost position, as shown in fig. 11, 12, 13 and 14: the sliding support assembly 2 and the sliding support power assembly 3 are at the lowest positions, the lifting load platform assembly 4 is at the highest position relative to the sliding support assembly 2, and the tail end box 11 is at the middle position; starting the first lifting motor 31 on the sliding support power assembly 3, the first lifting gear 32 moves upwards on the first lifting rack 112, and simultaneously the first linear slide block 33 of the sliding support power assembly 3 moves on the first linear guide rail 111 of the fixed support assembly 1 to play a role in guiding and positioning up and down, and continuously rises, and the sliding support power assembly 3 reaches the first cushion pad 113 position on the lower end face of the upper bottom plate 16 of the fixed support, so that the tail end box 11 reaches the highest position of the lifter.

In the elevator of the embodiment, the two sets of gear rack mechanisms are combined into an integrated lifting structure, the lifting starting point is coincided with the lowest point of the elevator body, the lifting stroke is about 2 times of the length of the elevator body, and the combined connection structure is compact and light (compact structure and no redundant space).

Where not otherwise indicated herein, it will be appreciated that the invention is not limited to or by the prior art, but is capable of modifications and variations as will be apparent to those skilled in the art, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. A compact low-starting-point long-stroke combined rack-and-pinion elevator is characterized in that: comprises a main structure and accessories for supplying power and controlling signals to the main structure,

the main structure comprises a fixed support assembly (1), a sliding support assembly (2), a sliding support power assembly (3) and a lifting load platform assembly (4), wherein the sliding support assembly (2) and the fixed support assembly (1) are both vertically arranged, and the sliding support power assembly (3) is fixed at the tail end of the sliding support assembly (2) and drives the sliding support assembly (2) to integrally ascend to the top end of the fixed support assembly (1) by combining the fixed support assembly (1); the lifting load platform assembly (4) slides on the sliding support assembly (2);

the fixed support assembly (1) comprises a fixed support upper base plate (16), a fixed support auxiliary plate (17), a fixed support lower base plate (18), a fixed support supporting plate (19), a fixed support supporting plate (110), a first linear guide rail (111) and a first lifting rack (112), wherein the lower ends of the fixed support auxiliary plate (17) and the fixed support supporting plate (110) are fixed on the fixed support supporting plate (19), the fixed support lower base plate (18) is positioned between the fixed support auxiliary plate (17) and the fixed support supporting plate (110) and is fixed on the fixed support supporting plate (110), the first linear guide rail (111) and the first lifting rack (112) are both arranged on two side plate surfaces of the fixed support supporting plate (110), and the lower ends of the first linear guide rail (111) and the first lifting rack (112) are both positioned on the fixed support lower base plate (18); the upper bottom plate (16) of the fixed bracket is arranged at the upper ends of the auxiliary plate (17) of the fixed bracket and the supporting plate (110) of the fixed bracket, and a first cushion pad (113) is arranged on the lower end surface of the upper bottom plate (16) of the fixed bracket and the upper end surface of the lower bottom plate (18) of the fixed bracket to play a role in buffering the up-down limit of the power component (3) of the sliding bracket;

the sliding support assembly (2) comprises a second linear guide rail (21), a second lifting rack (22), a sliding support upper bottom plate (24), a sliding support supporting plate (25) and a sliding support lower bottom plate (26), the sliding support supporting plate (25) is a vertical plate, the sliding support upper bottom plate (24) and the sliding support lower bottom plate (26) are fixed on the upper end face and the lower end face of the sliding support supporting plate (25), the second linear guide rail (21) and the second lifting rack (22) are installed on two side plate faces of the sliding support supporting plate (25), and the lower ends of the second linear guide rail (21) and the second lifting rack (22) are positioned on the sliding support supporting plate (25); a second cushion pad (23) is arranged on the lower end face of the upper base plate (24) of the sliding support and the upper end face of the lower base plate (26) of the sliding support, and plays a role in buffering the up-and-down limit of the lifting load platform assembly (4);

the sliding support power assembly (3) comprises a first lifting motor (31), a first lifting gear (32), a plurality of first linear sliders (33) and a sliding support lifting plate (34), the sliding support lifting plate (34) comprises a left part and a right part, the left half part of the sliding support lifting plate (34) is a first motor mounting support (35) of the first lifting motor (31), the right half part of the sliding support lifting plate (34) is a slider seat (36) for mounting the first linear sliders (33), the sliding support lifting plate (34) is fixed with a sliding support supporting plate (25) through a sliding support side end face (37) of the slider seat (36), the plurality of first linear sliders (33) are mounted in the slider seat (36) in series and are connected with a second linear guide rail (21) in a matching manner, the first lifting motor (31) is mounted on the first motor mounting support (35), the first lifting gear (32) is mounted on a motor shaft of the first lifting motor (31), the first lifting gear (32) is externally meshed with a first lifting rack (112);

the lifting load platform assembly (4) comprises a second lifting motor (41), a second lifting gear (42), a plurality of second linear sliders (43), a load platform lifting plate (44) and a tail end box adapter plate (45), the load platform lifting plate (44) comprises a left part and a right part, the left part of the load platform lifting plate (44) is a second motor mounting bracket (46) of the second lifting motor (41), the right part of the load platform lifting plate (44) is a load platform slider mounting plate (47) for mounting the second linear sliders (43), the second lifting motor (41) is mounted on the second motor mounting bracket (46), the second lifting gear (42) is mounted on a motor shaft of the second lifting motor (41), the second lifting gear (42) is externally engaged with a second lifting rack (22), the plurality of second linear sliders (43) are mounted on one side face of the load platform slider mounting plate (47) in series and are in sliding fit with the second linear guide rail (21), and the tail end box adapter plate (45) is vertically fixed on the other side surface of the load platform slide block mounting plate (47).

2. The compact, low-start, long-stroke, modular rack-and-pinion lift according to claim 1, characterized in that the accessories include a wire harness raceway (14), a load platform tow (5), a sliding bracket tow (6), two motor drives (15), a load platform tow fixing base (7), a load platform tow moving base (8), a sliding bracket tow fixing base (9), and a sliding bracket tow moving base (10), the load platform tow fixing base (7) being mounted at a middle position of the sliding bracket support plate (25), the load platform tow moving base (8) being mounted on the load platform lift plate (44), the sliding bracket tow fixing base (9) being mounted at a middle position of the fixed bracket auxiliary plate (17), the sliding bracket tow moving base (10) being mounted on the sliding bracket lift plate (34), the upper end and the lower end of a load platform drag chain (5) are respectively installed on a load platform drag chain fixing bottom plate (7) and a load platform drag chain moving bottom plate (8), the upper end and the lower end of a sliding support drag chain (6) are respectively installed on a sliding support drag chain fixing bottom plate (9) and a sliding support drag chain moving bottom plate (10), the upper end and the lower end of a wiring harness wiring groove (14) are respectively installed on the load platform drag chain fixing bottom plate (7) and a sliding support lifting plate (34), two motor drivers (15) are both fixed on a fixing support auxiliary plate (17), and the two motor drivers (15) are respectively electrically connected with a first lifting motor (31) and a second lifting motor (41) through connecting wires.

3. The compact, low-starting, long-stroke combination rack and pinion lift according to claim 2, characterized in that the two motor drivers (15) are disposed one above the other, and both motor drivers (15) are located at the lower portion of the fixed bracket auxiliary plate (17).

4. The compact, low-starting and long-stroke combination rack and pinion lift according to claim 1, further comprising a terminal box (11), wherein the terminal box (11) is fixed on a terminal box adapter plate (45), and the terminal box (11) is a carrier of the lift and is provided with various detection instruments therein.

5. The compact, low-starting, long-stroke combination rack and pinion lift according to claim 4, characterized in that the accessory further comprises a wire harness (13), the wire harness (13) comprising a terminal box wire harness and two motor wire harnesses, both motor wire harnesses being led out from the terminal box (11) and being connected to the two motor drives (15) via the load platform drag chain (5) and the sliding bracket drag chain (6), respectively; the end box wire harness is led out of the lifter from the end box (11).

6. The compact, low-start, long-stroke combination rack and pinion lift of claim 5, wherein the end box wiring harness is comprised of a power cord and a signal cord, and the motor wiring harness is comprised of a motor cable, an electromagnetic braking cable, and an encoder cable.

7. The compact, low-starting, long-stroke combination rack and pinion lift according to claim 1, characterized in that it further comprises a lift platform (12), the fixed bracket assembly (1) being vertically fixed to the lift platform (12) by means of a fixed bracket pallet (19).