CN210973588U - Rack type lifter for mounting top glass of greenhouse - Google Patents

Abstract

The utility model provides a rack-type lifting machine for installing greenhouse top glass, it includes portal frame, linear guide subassembly, reversing mechanism subassembly, rack and pinion drive assembly, tray subassembly and chassis extension subassembly. The linear guide rail assembly is connected with a portal frame through a linear guide rail fixed support column and a support column locking nut, the reversing mechanism assembly is located on the upper portion of the portal frame, the reversing mechanism assembly is connected with the portal frame through a reversing mechanism speed reduction motor support seat and a reversing mechanism bearing bush, the gear rack driving assembly is connected with the reversing mechanism assembly through a rack driving motor fixing base, the supporting plate assembly is connected with the linear guide rail assembly through a short slide rail, the telescopic chassis extension support is located at the bottom of the portal frame, the extending end of the telescopic chassis extension support is connected with the lead screw type support column, and the bottom of the telescopic chassis extension support is connected with a. The utility model discloses simple structure, it can realize freely walking along ground, saves the manpower and moves the heavy work that ladder utensil was handed over and was lifted glass, and is safe nimble.

Description

Rack type lifter for mounting top glass of greenhouse

Technical Field

The utility model relates to an agricultural facility installation technical field especially relates to a rack formula lifting machine for installing greenhouse top glass.

Background

The greenhouse is commonly called as a greenhouse, is a facility capable of controlling or partially controlling the growing environment of plants, has the characteristics of cold resistance, heating, light transmission and the like, can be used as a place for cultivating warm plants in winter, can provide a growing period and increase the yield in seasons unsuitable for plant growth, and is mainly used for cultivating or growing seedlings of the warm plants such as the warm vegetables, flowers, woods and the like in low-temperature seasons.

With the rapid development of facility agriculture, various types of greenhouse facilities are widely used. At present, the toughened glass is generally arranged on the top of the high-grade greenhouse. Toughened glass is increasingly popular because of its characteristics of good light transmission, high strength, good water-sliding performance, easy replacement and maintenance, etc. However, the design of the roof of the existing multi-span greenhouse is higher and higher in order to meet the requirement of growing of the high and large crops, the work of conveying the glass to the roof is very heavy when workers install the roof glass, and the safety threat caused by the fragile glass can be generated at any time. Simultaneously, the installation of greenhouse top glass belongs to high altitude construction, and traditional supply of goods mode generally all adopts the mode of artifical scaffold frame hand-lifting, and some have also adopted the method of pulley hoist and mount, but these tactics transportation are all very low-efficient, and the safety can not be ensured moreover, the injury of personnel appears easily. In order to effectively improve the working efficiency and eliminate potential safety hazards, a set of safe, efficient and quick overhead conveying machine is required to be developed for improving the installation efficiency and quality of the greenhouse.

SUMMERY OF THE UTILITY MODEL

To the problem that traditional transportation greenhouse top glass machinery exists, the utility model provides a rack formula lifting machine for installing greenhouse top glass mainly is dangerous in order to reduce workman's intensity of labour and unnecessary, reduces greenhouse glass's spoilage and improves greenhouse installation effectiveness and quality.

The utility model provides a rack-type lifting machine for installing greenhouse top glass, it includes portal frame, linear guide subassembly, reversing mechanism subassembly, rack and pinion drive assembly, tray subassembly and chassis extension subassembly. The linear guide subassembly passes through linear guide fixed stay post and support column lock nut and is connected with the portal frame, and the reversing mechanism subassembly is located the upper portion of portal frame is connected with the portal frame through reversing mechanism gear motor supporting seat and reversing mechanism axle bush, and rack and pinion drive assembly passes through rack drive motor unable adjustment base and reversing mechanism subassembly and connects, and the layer board subassembly passes through short slide rail and linear guide subassembly and connects, and chassis extension subassembly, it includes telescopic chassis extension support, lead screw formula support column and lifting machine chassis truckle, telescopic chassis extension support is located the bottom of portal frame, telescopic chassis extension support stretch out the end with the lead screw formula support column is connected, telescopic chassis extension support the bottom with lifting machine chassis truckle is connected. The linear guide rail assembly comprises a first linear guide rail, a second linear guide rail, a third linear guide rail, a short slide rail, a first linear guide rail fixed supporting column, a second linear guide rail fixed supporting column and a supporting column locking nut; the reversing mechanism assembly comprises a reversing mechanism speed reducing motor, a reversing mechanism rolling shaft, a first reversing mechanism bearing bush, a reversing mechanism speed reducing motor supporting seat, a reversing mechanism driven gear, a reversing mechanism driving gear, a second reversing mechanism bearing bush, a rivet, a sliding rail linear guide groove, a rack and sliding rail connecting piece, a sliding rail support, a pin shaft and a sliding rail rolling bearing, wherein the reversing mechanism rolling shaft is internally provided with a through hole structure; the rack and pinion driving assembly comprises a rack driving driven wheel, a rack driving wheel, a rack driving motor fixing base, a rack driving B-shaped tooth seat, a rack driving shaft, a rack driving B-shaped tooth seat idler wheel and a rack driving B-shaped tooth seat inner gear; the tray assembly comprises a tray leaning frame, a tray, a conveying belt roller and a bearing object.

Preferably, among the linear guide subassembly, the first terminal surface of first linear guide pass through linear guide fixed stay post and support column lock nut with the portal frame is connected, the second terminal surface of first linear guide pass through the notch with the first terminal surface of second linear guide connects, the second terminal surface of second linear guide pass through the notch with the first terminal surface of third linear guide connects, the second terminal surface of third linear guide pass through the notch with the first terminal surface of short slide rail connects.

Preferably, in the reversing mechanism assembly, the reversing mechanism gear motor is fixedly connected with the portal frame through the reversing mechanism gear motor supporting seat, an output shaft of the reversing mechanism gear motor is connected with the reversing mechanism driving gear, the reversing mechanism driving gear is connected with the reversing mechanism driven gear, the reversing mechanism driven gear is fixedly connected with the reversing mechanism roller, and the reversing mechanism roller is connected with the portal frame through the first reversing mechanism bearing bush and the second reversing mechanism bearing bush respectively.

Preferably, in the rack and pinion drive assembly, the rack drive motor passes through the rack drive motor unable adjustment base and the reversing mechanism roller bearing is connected, the output shaft of rack drive motor with the rack drive action wheel is connected, the rack drive action wheel with the rack drive is connected from the driving wheel, the rack drive from the driving wheel with the rack drive axle connection, the rack drive axle passes through rack drive B type toothholder internal gear with the rack connection, the back of rack passes through rack drive B type toothholder depended wheel with the first end of rack drive B type toothholder is connected, the second end of rack drive B type toothholder with the reversing mechanism roller bearing is connected.

Preferably, in the tray assembly, the side surface of the tray leaning frame is connected with the second end surface of the short slide rail, the bottom of the tray leaning frame is connected with the tray, the conveyor belt rollers are uniformly distributed in the tray frame, and the bearing object is positioned on the upper portion of the conveyor belt rollers.

Preferably, the outside of slide rail straight line guide way with the both sides of tray are connected, the rack with slide rail connection's first end pass through the rivet with rack fixed connection, the rack with slide rail connection's second end through the round pin axle with slide rail bracket's stiff end is connected, slide rail antifriction bearing with slide rail bracket's removal end all is located slide rail straight line guide way's inside.

Preferably, the reversing mechanism roller, the reversing mechanism driven gear, the reversing mechanism driving gear, the first reversing mechanism bush, the second reversing mechanism bush, the rack driving wheel, the rack driving driven wheel, the rack driving B-type gear seat internal gear and the rack driving shaft are coaxial, and the inner diameter of the reversing mechanism roller is equal to the inner diameter of the rack driving shaft.

Preferably, the linear guide rail assemblies are symmetrically distributed on two sides of the portal frame, the rack and pinion movement assemblies are symmetrically distributed on two sides of the portal frame, and the distance between the linear guide rail assemblies and the portal frame is greater than the distance between the rack and pinion movement assemblies and the portal frame.

Preferably, the number of the telescopic chassis extension supports, the number of the screw rod type support columns and the number of the hoist chassis trundles are equal, and the telescopic chassis extension supports, the screw rod type support columns and the hoist chassis trundles are symmetrically distributed at the bottom of the portal frame.

The utility model has the advantages of as follows:

the utility model discloses simple structure, convenient to use, it can realize freely walking along ground, saves the manpower and moves the heavy work that the ladder utensil was handed and was lifted glass, labour saving and time saving, and safe nimble to stable in structure, it is very convenient to use. The lifting platform adopts a mode of driving the rack by the motor to change the height of the workbench, an operator can control a button on the elevator or a remote controller to control the positive and negative rotation of the motor, and the elevator is automatically stopped after the upper and lower dead points preset by the system are reached, so that the labor intensity of manual carrying is greatly reduced, and the working efficiency is improved. All parts of the machine are connected by an assembly body, and the machine is convenient and quick to disassemble and assemble and convenient for long-distance transportation. The rack motion adopts and draws, and two kinds of working methods of lifting accomplish a duty cycle, have practiced thrift the space of vertical direction, and 3 meters racks just can realize being close 6 meters moving distance for example. The mechanical chassis is improved to be additionally provided with a stress area expanding function, the chassis can be stretched and expanded after mechanical positioning, the stability can be effectively improved, and the safety coefficient of equipment is improved. Its stable in structure of elevating system, the security is high to when not using, can lift equipment with the lift and fall the extreme low position, make the multilayer slide rail be in crisscross parallel state, area is little this moment, is convenient for accomodate and transport.

Drawings

FIG. 1 is a schematic structural view of the rack-type lifter for mounting the top glass of the greenhouse of the present invention when falling to the ground;

FIG. 2 is a schematic structural view of the side surface of the rack type lifter for mounting the top glass of the greenhouse when the rack type lifter is grounded;

FIG. 3 is a partial schematic view of a rack type lifter reversing mechanism for mounting the top glass of the greenhouse of the present invention;

FIG. 4 is a partial internal cross-sectional view of the rack-type lifter reversing mechanism for installing the top glass of the greenhouse of the present invention;

FIG. 5 is a connection diagram of a portal frame and a linear guide rail assembly in the rack-type lifter for mounting the top glass of the greenhouse of the present invention;

FIG. 6 is a connection diagram of a reversing mechanism assembly and a rack and pinion drive assembly in the rack type lifter for mounting the top glass of the greenhouse of the present invention;

FIG. 7 is a connection diagram of a rack and pinion drive assembly in the rack-and-pinion elevator for installing the top glass of the greenhouse of the present invention;

FIG. 8 is a schematic view of a partial structure of the top of the rack-type lifter for installing the top glass of the greenhouse according to the present invention when lifted;

FIG. 9 is a schematic view of the top structure of the rack-type lifter for installing the top glass of the greenhouse of the present invention lifting the glass;

FIG. 10 is a schematic view of the rack driving motor of the rack-type lifter for mounting the top glass of the greenhouse according to the present invention;

FIG. 11 is a schematic half-sectional view of a reversing mechanism assembly and a rack and pinion drive assembly in the rack-and-pinion elevator for installing the top glass of the greenhouse of the present invention;

FIG. 12 is a schematic view of the structure of the base in the rack-type lifter for installing the top glass of the greenhouse of the present invention; and

fig. 13 is a schematic view of the whole structure of the rack-type lifter for installing the top glass of the greenhouse of the present invention when lifting the glass.

The main reference numbers:

a portal frame 1, a first linear guide rail 2, a reversing mechanism gear motor 3, a rack driving driven wheel 4, a rack driving wheel 5, a second linear guide rail 6, a third linear guide rail 7, a tray leaning frame 8, a tray 9, a rack 10, a first linear guide rail fixing support column 11, a conveyor belt roller 12, a reversing mechanism rolling shaft 13, a first reversing mechanism bearing bush 14, a reversing mechanism gear motor support seat 15, a sliding rail linear guide groove 16, a rack and sliding rail connecting piece 17, a sliding rail support 18, a pin shaft 19, a sliding rail rolling bearing 20, a short sliding rail 21, a support column locking nut 22, a reversing mechanism driven gear 23, a reversing mechanism driving gear 24, a second reversing mechanism bearing bush 25, a rack driving motor 26, a rack driving motor fixing base 27, a rack driving B-shaped tooth seat 28, a rack driving shaft 29, a bearing object 30 and a second linear guide rail fixing support column 33, the rack-driven type B tooth seat leaning wheel 35, the rack-driven type B tooth seat internal gear 36, the telescopic chassis extension bracket 51, the screw rod type support pillar 52 and the elevator chassis caster 53.

Detailed Description

The technical contents, structural features, and achieved objects and effects of the present invention will be described in detail with reference to the accompanying drawings.

A rack type lifting machine for installing greenhouse top glass is shown in figures 1 and 2 and comprises a portal frame 1, a linear guide rail assembly, a reversing mechanism assembly, a gear rack driving assembly, a tray assembly and a chassis expansion assembly, and all the components work in a coordinated mode to ensure safety and effectiveness.

The portal frame 1 is made of iron alloy in a welding mode, the linear guide rail assembly is fixedly connected with the portal frame 1 through a first linear guide rail fixing support column 11, a second linear guide rail fixing support column 33 and a support column locking nut 22, the reversing mechanism assembly is located on the upper portion of the portal frame 1 and is connected with the portal frame 1 through a reversing mechanism speed reduction motor support seat 15, a first reversing mechanism bearing bush 14 and a second reversing mechanism bearing bush 25, the gear rack driving assembly is connected with the reversing mechanism assembly through a rack driving motor fixing base 27, and the supporting plate assembly is connected with the linear guide rail assembly through a short sliding rail 21.

The chassis extension assembly comprises a telescopic chassis extension bracket 51, a screw rod type support column 52 and a lifting machine chassis caster 53, wherein the telescopic chassis extension bracket 51 is positioned at the bottom of the portal frame 1, the extending end of the telescopic chassis extension bracket 51 is connected with the screw rod type support column 52, and the bottom of the telescopic chassis extension bracket 51 is connected with the lifting machine chassis caster 53.

The linear guide assembly, as shown in fig. 5, includes a first linear guide 2, a second linear guide 6, a third linear guide 7, a short slide rail 21, a first linear guide fixed support column 11, a second linear guide fixed support column 33, and a support column locking nut 22. The first end face of a first linear guide rail 2 in the linear guide rail assembly is fixedly connected with the portal frame 1 through a linear guide rail fixed supporting column and a supporting column locking nut 22, the second end face of the first linear guide rail 2 is connected with the first end face of a second linear guide rail 6 through a notch, the second end face of the second linear guide rail 6 is connected with the first end face of a third linear guide rail 7 through a notch, and the second end face of the third linear guide rail 7 is connected with the first end face of a short slide rail 21 through a notch. The first linear guide rail 2, the second linear guide rail 6, the third linear guide rail 7 and the short slide rail 21 only allow vertical linear movement, the transverse displacement is locked, the slide rails are driven step by step during operation, and when the slide rails are freely pulled to an upper dead point and a lower dead point, the next stage of guide rail is driven. The linear guide rail assembly mainly functions to support the tray 9 and the object 30 to be carried on the tray, and the slide rails can slide and rub in the rails and are limited by the locking device to drive the next layer of slide rails to move upwards or downwards.

The reversing mechanism assembly, as shown in fig. 6, includes a reversing mechanism gear motor 3, a reversing mechanism roller 13, a first reversing mechanism bearing bush 14, a reversing mechanism gear motor support seat 15, a reversing mechanism driven gear 23, a reversing mechanism driving gear 24, a second reversing mechanism bearing bush 25, a rivet, a sliding rail linear guide groove 16, a rack and sliding rail connecting piece 17, a sliding rail support 18, a pin 19 and a sliding rail rolling bearing 20, wherein the reversing mechanism roller 13 is internally provided with a through hole structure.

In the reversing mechanism assembly, a reversing mechanism reducing motor 3 is fixedly connected with a portal frame 1 through a reversing mechanism reducing motor supporting seat 15, an output shaft of the reversing mechanism reducing motor 3 is connected with a reversing mechanism driving gear 24, the reversing mechanism driving gear 24 is connected with a reversing mechanism driven gear 23, the reversing mechanism driven gear 23 is fixedly connected with a reversing mechanism rolling shaft 13, and the reversing mechanism rolling shaft 13 is fixedly connected with the portal frame 1 through a first reversing mechanism bearing bush 14 and a second reversing mechanism bearing bush 25 respectively. The commutator roller 13 can axially rotate 180 degrees along the first commutator bearing bush 14 and the second commutator bearing bush 25 under the drive of the commutator mechanism speed reduction motor 3, so as to meet the lifting or lifting action of the rack. The reversing mechanism speed reducing motor 3 has the function that when the rack 10 moves to the extreme point position, the whole gear rack driving assembly rotates 180 degrees, then the rack 10 is lifted from lifting, and moves again to do work.

The rack and pinion drive assembly, as shown in fig. 7 and 10, includes a rack drive driven wheel 4, a rack drive driving wheel 5, a rack 10, a rack drive motor 26, a rack drive motor fixing base 27, a rack drive B-shaped tooth holder 28, a rack drive shaft 29, a rack drive B-shaped tooth holder idler wheel 35 and a rack drive B-shaped tooth holder internal gear 36.

In the rack and pinion driving assembly, the rack driving motor 26 is fixedly connected with the reversing mechanism roller 13 through the rack driving motor fixing base 27, it is ensured that the rack and pinion driving assembly can synchronously rotate along with the reversing mechanism roller 13, an output shaft connected with the rack driving motor 26 is connected with the rack driving wheel 5, the rack driving wheel 5 is connected with the rack driving driven wheel 4, the rack driving driven wheel 4 is fixedly connected with the rack driving shaft 29, the rack driving motor 26 is a small-sized speed reducing motor with a forward and reverse rotation function, the rack driving motor 26 mainly aims at rotating a rack driving B-shaped gear seat inner gear 36 on a gear seat, so that the rack 10 performs linear motion, and the tray 9 is lifted or lifted to convey articles. The rack driving shaft 29 is connected with the rack 10 through a rack driving B-type tooth holder internal gear 36, the back of the rack 10 is connected with the first end of the rack driving B-type tooth holder 28 through a rack driving B-type tooth holder leaning wheel 35, the rack driving B-type tooth holder leaning wheel 35 can reduce friction force in the motion process of the rack 10, and the second end of the rack driving B-type tooth holder 28 is connected with the reversing mechanism roller 13.

The tray assembly, as shown in fig. 5 and 9, includes a tray rest 8, a tray 9, conveyor rollers 12, and a carrier 30. In the tray subassembly, the side that the tray leaned on frame 8 is connected with the second terminal surface of short slide rail 21, and the tray leans on the bottom of frame 8 to be connected with tray 9, and conveyer belt gyro wheel 12 evenly distributed constitutes a conveyer belt workstation in the inside of tray 9 frame, does suitable adjustment after doing in order to do benefit to the workman easily to place glass on the platform. The carriers 30 are located on the upper portion of the conveyor belt rollers 12. Tray 9 is the weldment, leans on frame 8 tray design as an organic whole with the tray, and tray 9 and tray lean on frame 8 mutually perpendicular, and the effect that the tray leans on frame 8 is for providing one for the bearing object 30 of slope placement and putting the point of leaning on. The tray 9 is in the same direction as the linear guide assembly and is vertical to the linear guide assembly.

As shown in fig. 3 and 4, the outside of the sliding rail linear guide groove 16 is connected with both sides of the tray 9, the stress point when the tray 9 moves up and down is concentrated on the sliding rail linear guide groove 16, the rack is fixedly connected with the rack 10 through a rivet, the rack is connected with the sliding rail connecting piece 17, the sliding rail bracket 18, the pin 19, the sliding rail rolling bearing 20, the sliding rail linear guide groove 16 adopts a flexible connection mode, the rack is fixedly connected with the first end of the sliding rail connecting piece 17 through a rivet, the rack is connected with the second end of the sliding rail connecting piece 17 through the pin 19 and the fixed end of the sliding rail bracket 18, the sliding rail rolling bearing 20 is connected with the movable end of the sliding rail bracket 18, the sliding rail rolling bearing 20 and the movable end of the sliding rail bracket 18 are both located inside the sliding rail linear guide groove 16, the sliding rail bracket. The sliding track rolling bearing 20 and the sliding track support 18 can freely move in the horizontal direction in the sliding track linear guide groove 16, and the function is to compensate the transverse displacement difference of the rack and pinion driving assembly when the force point is converted.

As shown in fig. 11, the reversing mechanism roller 13, the reversing mechanism driven gear 23, the reversing mechanism driving gear 24, the first reversing mechanism bush 14, the second reversing mechanism bush 25, the rack drive driving wheel 5, the rack drive driven wheel 4, the rack drive B-type carrier internal gear 36, and the rack drive shaft 29 are coaxial.

As shown in fig. 1 and 8, the linear guide rail assemblies are symmetrically distributed on two sides of the portal frame 1, the rack and pinion movement assemblies are symmetrically distributed on two sides of the portal frame 1, and the distance between the linear guide rail assemblies and the portal frame 1 is greater than the distance between the rack and pinion movement assemblies and the portal frame 1.

As shown in fig. 12, the number of the telescopic chassis extension brackets 51, the number of the lead screw type support columns 52 and the number of the hoist chassis caster wheels 53 are equal, and the telescopic chassis extension brackets 51, the lead screw type support columns 52 and the hoist chassis caster wheels 53 are symmetrically distributed at the bottom of the gantry 1.

The rack-type lifter for installing the top glass of the greenhouse of the invention is further described with reference to the following embodiments:

the utility model discloses a rack formula top glass lifting machine for greenhouse installation, top glass lifting machine belong to the special machinery of a greenhouse installation, carry thing power and rely on power supply, need insert the commercial power for equipment during the use, and the manipulator that the control machinery ascends and descends is the button or the wireless remote control ware of equipment from the area. The equipment is controlled by a singlechip program supporting electrical logic, a real-time state sensor is arranged at each operating key point, the program selects an action to be executed according to instructions and state analysis, and the two groups of control motors operate in respective time periods to complete the task of conveying articles by the equipment.

When the apparatus is used to lift the transport carrier 30 (glass), first, the carrier 30 (glass) is placed on the tray 9 by the conveyor rollers 12 on the tray 9; the surface builder then presses a button or remote control lift to activate the device. At this time, the rack driving motor 26 drives the rack driving wheel 5 to rotate, the rack driving wheel 5 drives the rack driving driven wheel 4 to rotate, the rack driving driven wheel 4 is fixedly connected with the rack driving shaft 29, the rack driving driven wheel 4 drives the rack driving shaft 29 to rotate, the rack driving B-type toothholder internal gear 36 is fixedly connected with the rack driving shaft 29, and the rack driving B-type toothholder internal gear 36 also moves along with the rack driving driven wheel, so as to drive the rack 10 meshed with the rack driving wheel to move in the vertical direction.

The rack 10 is connected with the tray 9 through the slide rail linear guide groove 16, the rack and slide rail connecting piece 17, the slide rail bracket 18, the pin shaft 10 and the slide rail rolling bearing 20, so that the tray 9 is driven to move in the vertical direction along the linear guide rail assembly.

The rack driving shaft 29 is inserted into the inner diameter of the reversing mechanism roller 13, and is rotationally matched with the reversing mechanism roller 13 by taking the shaft center as the axis, and under the transmission function of the rack driving shaft 29, the synchronous torque is transmitted to the gear rack driving component at the other end to drive the rack 10 to synchronously move.

When the rack 10 is driven by the rack driving motor 26 to be lifted to a limit point, the rack driving motor 26 is controlled by a sensing instruction to stop supplying power to operate, at the moment, the speed reducing motor 3 of the reversing mechanism starts to work, and the rotating torque is transmitted to the driven gear 23 of the reversing mechanism through the driving gear 24 of the reversing mechanism, because the driven gear 23 of the reversing mechanism is concentric with the roller 13 of the reversing mechanism and is embedded together through the process, the rotation of the gear can drive the roller 13 of the reversing mechanism to rotate without fail, and the rotating angle is 180 degrees.

Since the base of the reaction force of the rack drive motor 26 is positioned on the reversing mechanism roller 13 by a hoop-shaped fastener such as the rack drive motor fixing base 27, when the reversing mechanism roller 13 rotates, the current positions of the rack drive driven wheel 4, the rack drive driving wheel 5, the rack 10, the rack drive motor 26, the rack drive motor fixing base 27, the rack drive B-shaped toothholder 28 and the rack drive B-shaped toothholder internal gear 36 also move along with the current positions, so that the rack 10 rotates 180 degrees, and mode conversion is performed for the pushing and lifting movement. In the reversing process, the sliding rail rolling bearing 20 and the sliding rail bracket 18 freely move in the horizontal direction in the sliding rail linear guide groove 16, so that the transverse displacement difference of the rack and pinion driving assembly when the force point is converted is compensated, and the stability of the whole mechanism in the reversing process is ensured.

After the reversing mechanism roller 13 is controlled by a program to complete the turning motion, the rack driving motor 26 changes the rotating direction again to drive the rack 10 to do the upward pushing motion, the tray 9 rises to the top under the action of the pushing traction force of the rack 10, and stops working after rising to the limit dead point, as shown in fig. 13.

After the top constructor unloads the lifted load 30 (glass), the operator presses a button or a remote lifter to make the equipment fall down, and the rack driving motor 26 changes the rotation direction again to drive the rack 10 to do downward contraction action. When the rack 10 is driven by the rack driving motor 26 to fall to a limit point, the rack driving motor 26 is controlled by a sensing instruction to stop supplying power to operate, at the moment, the speed reducing motor 3 of the reversing mechanism starts to work, and the rotating torque is transmitted to the driven gear 23 of the reversing mechanism through the driving gear 24 of the reversing mechanism, because the driven gear 23 of the reversing mechanism is concentric with the roller 13 of the reversing mechanism, the rotation of the gear can drive the roller 13 of the reversing mechanism to rotate. After the reversing mechanism roller 13 is controlled by a program to complete 180-degree rotation angle action, the rack driving motor 26 changes the rotation direction again to drive the rack 10 to do downward contraction action, the tray 9 descends to the bottom under the action of pushing traction force of the rack 10, and stops working after descending to a limit stop point, so that one working cycle is completed.

The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims (9)

1. The utility model provides a rack-type lifting machine for installing greenhouse top glass, its includes portal frame, linear guide subassembly, reversing mechanism subassembly, rack and pinion drive assembly, tray subassembly and chassis extension subassembly, its characterized in that:

the gantry crane comprises a portal frame, a linear guide rail assembly, a reversing mechanism assembly, a rack drive assembly, a support plate assembly and a chassis extension assembly, wherein the portal frame is connected with the linear guide rail assembly through a linear guide rail fixing support column and a support column locking nut; and

the linear guide rail assembly comprises a first linear guide rail, a second linear guide rail, a third linear guide rail, a short slide rail, a first linear guide rail fixed supporting column, a second linear guide rail fixed supporting column and a supporting column locking nut; the reversing mechanism assembly comprises a reversing mechanism speed reducing motor, a reversing mechanism rolling shaft, a first reversing mechanism bearing bush, a reversing mechanism speed reducing motor supporting seat, a reversing mechanism driven gear, a reversing mechanism driving gear, a second reversing mechanism bearing bush, a rivet, a sliding rail linear guide groove, a rack and sliding rail connecting piece, a sliding rail support, a pin shaft and a sliding rail rolling bearing, wherein the reversing mechanism rolling shaft is internally provided with a through hole structure; the rack and pinion driving assembly comprises a rack driving driven wheel, a rack driving wheel, a rack driving motor fixing base, a rack driving B-shaped tooth seat, a rack driving shaft, a rack driving B-shaped tooth seat idler wheel and a rack driving B-shaped tooth seat inner gear; the tray assembly comprises a tray leaning frame, a tray, a conveying belt roller and a bearing object.

2. The rack-type lifter for installing roof glass of a greenhouse of claim 1, wherein the first end surface of the first linear guide is connected with the portal frame through a linear guide fixing support column and a support column locking nut, the second end surface of the first linear guide is connected with the first end surface of the second linear guide through a notch, the second end surface of the second linear guide is connected with the first end surface of the third linear guide through a notch, and the second end surface of the third linear guide is connected with the first end surface of the short slide rail through a notch.

3. The rack-type lifter for installing roof glass of a greenhouse of claim 1, wherein the reversing gear reducer motor is fixedly connected to the gantry through the reversing gear reducer motor support base, an output shaft of the reversing gear reducer motor is connected to the reversing gear drive gear, the reversing gear drive gear is connected to the reversing gear driven gear, the reversing gear driven gear is fixedly connected to the reversing gear roller, and the reversing gear roller is connected to the gantry through the first reversing bearing bush and the second reversing bearing bush, respectively.

4. The rack type lifter for installing roof glass of a greenhouse as claimed in claim 1, wherein the rack driving motor is connected to the reversing mechanism roller through the rack driving motor fixing base, an output shaft of the rack driving motor is connected to the rack driving wheel, the rack driving wheel is connected to the rack driving driven wheel, the rack driving driven wheel is connected to the rack driving shaft, the rack driving shaft is connected to the rack through the gear in the rack driving type B toothholder, the back of the rack is connected to the first end of the rack driving type B toothholder through the rack driving type B toothholder backup wheel, and the second end of the rack driving type B toothholder is connected to the reversing mechanism roller.

5. The rack-and-pinion elevator for installing roof glass in a greenhouse of claim 1, wherein the side of the pallet rest is connected to the second end surface of the short slide rail, the bottom of the pallet rest is connected to the pallet, the conveyor rollers are uniformly distributed in the interior of the pallet frame, and the load bearing objects are located on the upper portions of the conveyor rollers.

6. The rack type lifter for installing the top glass of the greenhouse as claimed in claim 1 or 3, wherein the outside of the slide rail linear guide groove is connected with both sides of the tray, the rack is fixedly connected with the first end of the slide rail connecting piece through a rivet, the rack is connected with the second end of the slide rail connecting piece through a pin shaft and the fixed end of the slide rail bracket, the slide rail rolling bearing is connected with the moving end of the slide rail bracket, and the slide rail rolling bearing and the moving end of the slide rail bracket are both located inside the slide rail linear guide groove.

7. The rack-and-pinion elevator for installing roof glass in a greenhouse of claim 3 or 4, wherein the reversing mechanism roller, the reversing mechanism driven gear, the reversing mechanism driving gear, the first reversing mechanism bushing, the second reversing mechanism bushing, the rack driving wheel, the rack driving driven wheel, the rack driving B-type gear base internal gear and the rack driving shaft are coaxial, and an inner diameter of the reversing mechanism roller is equal to an inner diameter of the rack driving shaft.

8. The rack-and-pinion elevator for installing roof glass in a greenhouse of claim 1, wherein the linear guide assemblies are symmetrically disposed on both sides of the gantry, the rack-and-pinion driving assemblies are symmetrically disposed on both sides of the gantry, and the distance between the linear guide assemblies and the gantry is greater than the distance between the rack-and-pinion driving assemblies and the gantry.

9. The rack-type lifter for installing roof glass of a greenhouse of claim 1, wherein the number of the telescopic chassis extension brackets, the number of the screw-type support columns and the number of the lifter chassis casters are equal, and the telescopic chassis extension brackets, the screw-type support columns and the lifter chassis casters are symmetrically distributed at the bottom of the portal frame.

Images