CN218231643U

CN218231643U - Chain transmission mechanism of electric chain hoist

Info

Publication number: CN218231643U
Application number: CN202222787298.8U
Authority: CN
Inventors: 桂永志; 郑微波
Original assignee: Dekelan Ningbo Intelligent Equipment Co ltd
Current assignee: Ningbo Airek Lifting Equipment Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-01-06
Anticipated expiration: 2032-10-21

Abstract

The utility model provides an electronic endless chain calabash chain conduction mechanism belongs to electronic endless chain calabash technical field. This just, electronic chain block chain conduction mechanism, including electronic chain block body, buffer gear is installed to the bottom of electronic chain block body, buffer gear includes a pair of connecting block, the spread groove has been seted up between a pair of connecting block, and the internally mounted of spread groove has a plurality of pieces of supporting, support the top of piece and install the blotter, the inside sliding connection of spread groove has the go-between, and the bottom of go-between can with support the piece extrusion of each other, the pivot is all installed through the bearing symmetry in the both sides of a pair of connecting block, the outside of pivot all is connected with the pull rod, one side of pull rod all is equipped with the fixed block. Through the constantly opening closure of buffer gear for a plurality of piece constantly support the go-between, thereby reduce the falling speed of go-between, finally make the speed that the heavy object descends constantly reduce, with reduce the impact force between its and the ground, avoid the condition that the heavy object appears damaging.

Description

Chain transmission mechanism of electric chain hoist

Technical Field

The utility model relates to an electronic chain block technical field particularly, relates to an electronic chain block chain conduction mechanism.

Background

The electric chain hoist is also called a light and small hoisting device. The electric chain hoist consists of a motor, a transmission mechanism and a chain wheel, the standard electric chain hoist is provided with an independent gearbox system, secondary coaxial transmission in a sealed gearbox is realized, and a long-life oil bath lubricating system is adopted. The electric chain hoist powder metallurgy clutch is used as an overload protection device, disc type direct current magnetic field braking is adopted in braking, and the electric chain hoist powder metallurgy clutch is large in braking torque, stable, rapid and low in noise.

The Chinese invention patent with the publication number of 9/2 in 2022 discloses a chain guide device of a chain electric hoist,

including endless chain electric block box and chain, the inside of endless chain electric block box is provided with cochain wheel clamp splice and lower sprocket clamp splice, the inside of cochain wheel clamp splice and lower sprocket clamp splice is provided with rotatable sprocket, the inside of sprocket is provided with power output shaft, one side of endless chain electric block box is provided with the chain bevel connection guide block, the bottom of endless chain electric block box is provided with the vertical guide block of chain, the chain encircles on the sprocket. The utility model has the advantages that: the inlet and the outlet of the device are not in the same plane, so that the collection of the chain is convenient, the integral effect of the equipment is beautiful and elegant, and the guide chain of the chain in the chain guide module is very smooth and less in abrasion of the chain by adjusting the outlet angle of the chain, and the noise generated in the chain guide process of the chain is reduced;

according to the technical scheme recorded in the scheme, the outlet angle of the chain is adjusted, so that the chain of the chain in the chain guide module is very smooth, the abrasion of the chain is reduced, and the noise generated in the chain guide process of the chain is reduced; however, if the chain of the electric chain hoist is not maintained for a long time, the chain may be broken when lifting heavy objects, and the weight of objects generally lifted by the electric chain hoist is heavy, and if the chain is broken, the heavy objects are crushed, thereby bringing economic loss to users.

SUMMERY OF THE UTILITY MODEL

In order to make up for above deficiency, the utility model provides an electronic endless chain calabash chain conduction mechanism.

The utility model discloses a realize like this:

the utility model provides an electronic chain block chain conduction mechanism, includes electronic chain block body, buffer gear is installed to the bottom of electronic chain block body, buffer gear includes a pair of connecting block, and is a pair of the spread groove has been seted up between the connecting block, just the internally mounted of spread groove has a plurality of pieces of supporting, support the top of piece and install the blotter, the inside sliding connection of spread groove has the go-between, just the bottom of go-between can with support the piece extrusion of each other, and is a pair of the pivot is all installed through the bearing symmetry in the both sides of connecting block, the outside of pivot all is connected with the pull rod, one side of pull rod all is equipped with the fixed block, be connected with the connecting axle between fixed block and the pull rod, the bracing piece is installed to one side of fixed block, actuating mechanism is installed to the bilateral symmetry of connecting block, just actuating mechanism's output is connected with the bracing piece.

The connecting device has the advantages that through the use of the rotating shaft, the pull rod, the fixing block and the connecting shaft, when the supporting rod moves downwards, the pull rod can rotate around the rotating shaft, so that the distance between the pair of rotating shafts is changed, the connecting blocks are mutually close, the space between the resisting blocks is reduced, after a chain is broken, the resisting blocks cannot pass through the connecting ring due to the fact that the space between the resisting blocks is not enough, the resisting blocks can block the connecting ring, if the connecting blocks are mutually separated, the space between the resisting blocks can be expanded, the connecting ring can pass through, when the connecting blocks are mutually close again, the resisting blocks can block the connecting ring, the descending speed of the connecting ring can be reduced by repeating the operation, the descending speed of the heavy object is reduced continuously, the impact force between the heavy object and the ground is reduced, and the situation that the heavy object is damaged is avoided.

Further, electronic endless chain calabash body includes the shell, just the internally mounted of shell has the gearbox and rolls the roller, and rolls the outside winding of roller and have the chain, and the output of gearbox is connected with the roller transmission, the outside at the chain is installed to the go-between.

Further, a first motor is installed on one side of the shell, the output end of the first motor is in transmission connection with the input end of the gearbox, and the bottom of the chain is connected with a lifting hook.

Further, the fixing base is installed to the bottom of shell, the through-hole has been seted up to the inside of fixing base, the chain can slide in the through-hole, a pair of spacing groove has been seted up to the bottom of fixing base, and is a pair of the equal sliding connection in inside of spacing groove has the stopper, the stopper is connected with the connecting block, be connected with the spring between stopper and the spacing groove.

The beneficial effect who adopts above-mentioned further scheme is, can make the connecting block be connected with the fixing base, and can not obstruct the removal of connecting block, and the spring can provide the power that the connecting block is close to each other to accelerate the speed that the connecting block drawn close to each other.

Further, actuating mechanism includes the supporting seat, the supporting seat is connected with the connecting block, just the supporting seat is seted up flutedly in the one side that is close to the connecting block, the frame is installed at the top of supporting seat, just the internally mounted of frame has the second motor, the backup pad is installed at the top of supporting seat, be connected with the drive shaft through the bearing on the central line of backup pad, the drive shaft is connected with the output transmission of second motor.

Adopt above-mentioned further scheme's beneficial effect be, after the second motor starts, can make the drive shaft rotatory.

Further, the inside of backup pad is connected with a pair of driven shaft through the bearing, and is a pair of the driven shaft symmetry is installed in the both sides of drive shaft, the connecting wire at the center of driven shaft is parallel with the supporting seat, the driving gear is installed in the outside of drive shaft, and is a pair of driven gear is all installed in the outside of driven shaft, just driving gear and driven gear meshing are connected.

Adopt above-mentioned further scheme's beneficial effect to be, through the use of driven gear and driving gear, when the drive shaft rotation back, a pair of driven shaft also can rotate.

Furthermore, a pair of half gears are installed on the outer sides of the driven shafts, a rack is connected to one side of the supporting plate in a sliding mode, the two sides of the rack can be meshed with the half gears, and the rack is connected with the supporting rod.

The further scheme has the advantages that the rotation directions of the driven gears are consistent, so that the rotation directions of the driven shafts are also consistent, the rotation directions of the half gears are consistent, when the rack is meshed with one half gear, the rack can ascend or descend, and when the rack is meshed with the other half gear, the rack can descend or ascend, so that the purpose of reciprocating circular motion of the rack is achieved.

Furthermore, the radiuses of the driving gear and the driven gear are consistent, the radiuses of the half gears are consistent, and the sections of the limiting blocks and the limiting grooves are isosceles trapezoids.

The beneficial effect who adopts above-mentioned further scheme is, through the restriction to driven gear size, can make driven shaft rotation speed unanimous to make the rotation speed of half-gear unanimous, through the restriction to half-gear size, can make the length and the speed of the ascending decline of rack unanimous, through the restriction to stopper and spacing groove shape, can prevent that the stopper from breaking away from the spacing groove.

Furthermore, a pair of limiting rings is installed on one side of the supporting plate, and the rack can slide in the limiting rings.

Adopt the beneficial effect of above-mentioned further scheme to be for the rack can remove more steady.

Furthermore, a controller is arranged on one side of the shell and electrically connected with the first motor and the second motor.

Adopt above-mentioned further scheme's beneficial effect be, convenient to use person controls first motor and second motor.

The beneficial effects of the utility model are that: the electric chain hoist chain transmission mechanism obtained by the design of the utility model enables the plurality of abutting blocks to continuously abut against the connecting ring through the continuous opening and closing of the buffer mechanism; through the pivot, the pull rod, the use of fixed block and connecting axle, when the bracing piece moves down, just can make the pull rod revolve around the pivot, thereby change the distance between a pair of pivot, make the connecting block draw close each other, and make and support the space between the piece and reduce, after the chain breaks off, because of supporting the space between the piece and be not enough the go-between to pass through, so support the piece and will block the go-between, if the connecting block separates each other, the space that supports between the piece will expand, make the go-between pass through, nevertheless later when the connecting block draws close each other again and makes, support the piece and just block the go-between, repeat this kind of operation, just can reduce the falling speed of go-between, finally make the speed that the heavy object descends constantly reduce, with the impact force between its and the ground, avoid the heavy object the circumstances of damage to appear.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic perspective view of a chain transmission mechanism of an electric chain block provided by the present invention;

fig. 2 is a schematic perspective view of a buffering mechanism of an electric chain block chain transmission mechanism provided by the present invention;

fig. 3 is an enlarged schematic view of a structure at a position a in the electric chain hoist chain transmission mechanism diagram 2 according to the present invention;

fig. 4 is a bottom view of the buffering mechanism of the chain transmission mechanism of the electric chain block provided by the present invention;

fig. 5 is a schematic view of a first three-dimensional structure of a driving mechanism of an electric chain hoist chain transmission mechanism provided by the present invention.

Fig. 6 is a schematic diagram of a second three-dimensional structure of a driving mechanism of an electric chain hoist chain transmission mechanism provided by the utility model.

Fig. 7 is a third schematic perspective view of the driving mechanism of the electric chain block chain transmission mechanism provided by the present invention.

In the figure: 100. an electric chain hoist body; 1001. a housing; 1002. a first motor; 1003. a chain; 1004. a hook; 1005. a controller; 200. a buffer mechanism; 2001. connecting blocks; 2002. a resisting block; 2003. connecting grooves; 2004. a connecting ring; 2005. a fixed seat; 2006. a support bar; 2007. a fixed block; 2008. a pull rod; 2009. a rotating shaft; 2010. a limiting groove; 2011. a spring; 2012. a limiting block; 300. a drive mechanism; 3001. a supporting base; 3002. a machine base; 3003. a support plate; 3004. a limiting ring; 3005. a rack; 3006. a half gear; 3007. a driven shaft; 3008. a drive shaft; 3009. a driving gear; 3010. a driven gear.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Embodiment I of the novel electric chain hoist chain transmission mechanism

The use is novel to provide the following technical scheme: as shown in fig. 1, 2 and 3, the electric chain hoist comprises an electric chain hoist body 100, a buffer mechanism 200 is mounted at the bottom of the electric chain hoist body 100, the buffer mechanism 200 comprises a pair of connecting blocks 2001, a connecting groove 2003 is formed between the pair of connecting blocks 2001, the connecting groove 2003 can form a cylinder shape after the pair of connecting blocks 2001 are folded, a plurality of abutting blocks 2002 are mounted inside the connecting groove 2003, a cushion pad is mounted at the top of the abutting blocks 2002, the cushion pad can reduce the impact force of the connecting rings 2004 when the connecting rings 2004 collide with the cushion pad, rotating shafts 2009 are mounted on both sides of the pair of connecting blocks 2001 through bearings and are symmetrically arranged, pull rods 2008 are connected to the outer sides of the rotating shafts 2009, fixing blocks 2007 are arranged on one sides of the pull rods 2008, a connecting shaft 2007 is connected between the fixing blocks 2007 and the pull rods 2008, a support rod 2006 is mounted on one side of the connecting shaft 2007, driving mechanisms 300 are symmetrically mounted on both sides of the connecting blocks 2001, and the output end of the driving mechanism 300 is connected with the supporting rod 2006, through the use of the rotating shaft 2009, the pull rod 2008, the fixing block 2007 and the connecting shaft, when the supporting rod 2006 moves downwards, the pull rod 2008 rotates around the rotating shaft 2009, so as to change the distance between the pair of rotating shafts 2009, to make the connecting blocks 2001 approach each other, and to reduce the space between the resisting blocks 2002, when the chain 1003 is broken, the resisting blocks 2002 will block the connecting ring 2004 because the space between the resisting blocks 2002 is not enough for the connecting ring 2004 to pass through, if the connecting blocks 2001 are separated from each other, the space between the resisting blocks 2002 will be expanded, so that the connecting ring 2004 will pass through, but then when the connecting blocks 2001 approach each other again, the resisting blocks 2002 will block the connecting ring 2004 again, repeating the operation, so as to reduce the descending speed of the connecting ring 2004, and finally to reduce the descending speed of the heavy object continuously, so as to reduce the impact force between the heavy object and the ground, the condition that the heavy object is damaged is avoided.

Second embodiment of the novel electric chain hoist chain transmission mechanism

Referring to fig. 4, specifically, a through hole is formed in a fixing seat 2005 on which the housing 1001 is mounted, for sliding the chain 1003 in the fixing seat 2005, and meanwhile, a pair of limiting grooves 2010 are formed in the bottom of the fixing seat 2005, for moving the limiting block 2012, so that the connecting block 2001 connected to the limiting block 2012 can move at the bottom of the fixing seat 2005, and a spring 2011 is further connected between the limiting block 2012 and the limiting grooves 2010, for providing power for the connecting blocks 2001 to approach each other, thereby increasing the speed at which the connecting blocks 2001 approach each other.

Third embodiment of the novel electric chain hoist chain transmission mechanism

Referring to fig. 5, 6 and 7, in detail, the driving mechanism 300 includes a supporting base 3001, the supporting base 3001 is connected to the connecting block 2001, and one side of the supporting base 3001 is provided with a groove close to the connecting block 2001, when the supporting base 3001 is moved to be close to each other by the movement of the connecting block 2001, the connecting block 2001 does not contact with the supporting base 3001 due to the groove, so that friction does not occur therebetween, a base 3002 is installed on the top of the supporting base 3001, a second motor is installed inside the base 3002, a supporting plate 3003 is installed on the top of the supporting base 3001, one side of the supporting plate 3003 is further connected to a driving shaft 3008 through a bearing, the driving shaft 3008 is located on a supporting line of the supporting plate 3003, the second motor can drive the driving shaft 3008 to rotate, a pair of driven shafts 3007 is connected to the inside of the supporting plate 3003 through a bearing, the pair of driven shafts 3007 are respectively located on both sides of the driving shaft 3008, a connecting line of central points of the driven shafts 3007 is parallel to the top of the supporting seat 3001, a driving gear 3009 and a driven gear 3010 are respectively installed on the outer sides of the driving shaft 3008 and the pair of driven shafts 3007, the driving gear 3009 can drive the driven gear 3010 to rotate, a half gear 3006 is installed on the outer sides of the pair of driven shafts 3007, a rack 3005 is connected to one side of the supporting plate 3003, the rack 3005 can move along one side of the supporting plate 3003, the rack 3005 can drive the rack 3005 to move up or down after the half gear 3006 rotates, the rack 3005 is connected with a supporting rod 2006, through the use of the driven gear 3010 and the driving gear 3009, after the driving shaft 3008 rotates, the pair of driven shafts 3007 can also rotate, and the rotating direction of the driven gear 3010 is the same, so that the rotating direction of the driven shaft 3007 is also the same, which results in the rotating direction of the half gear 3006 being the same, when the rack 3005 is engaged with one half gear 3006, it can rise or fall, when the rack is meshed with the other half gear 3006, the rack can descend or ascend, so that the purpose of reciprocating and circulating motion of the rack 3005 is achieved, and the supporting rod 2006 is driven to do the same motion.

Specifically, this electric chain hoist chain conduction mechanism's theory of operation: when the heavy object lifting device is used, a heavy object is hung on the hook 1004, the controller 1005 is used for starting the first motor 1002, so that the first motor 1002 drives the gearbox to work, the gearbox is used for reducing the rotating speed output by the first motor 1002 and transmitting the rotating speed to the roller, the rotating speed is inversely proportional to the torque, so that the pulling force of the roller can be increased, and the purpose of lifting the heavy object is achieved, if the chain 1003 breaks in the process of pulling the heavy object, the second motor can be started through the controller 1005, so that the driving shaft 3008 rotates, through the use of the driven gear 3010 and the driving gear 3009, the pair of driven shafts 3007 also rotate, because the rotating directions of the driven gears 3010 are consistent, the rotating directions of the driven shafts 3007 are also consistent, so that the rotating directions of the half gears 3006 are consistent, when the rack 3005 is meshed with one half gear 3006, the rack 3007 can ascend or descend, and when meshed with the other half gear 3006, and then descends or ascends, so that the purpose that the rack 3005 makes reciprocating circular motion is achieved, the support rod 2006 is driven to make the same motion, through the use of the rotating shaft 2009, the pull rod 2008, the fixing block 2007 and the connecting shaft, when the support rod 2006 moves downwards, the pull rod 2008 can rotate around the rotating shaft 2009, so that the distance between the pair of rotating shafts 2009 is changed, the connecting blocks 2001 are mutually closed, and the space between the resisting blocks 2002 is reduced, because the space between the resisting blocks 2002 is not enough for the connecting ring 2004 to pass through, the resisting blocks 2002 can block the connecting ring 2004, if the connecting blocks 2001 are mutually separated, the space between the resisting blocks 2002 is expanded, the connecting ring 2004 passes through, but then when the connecting blocks 2001 are mutually closed again, the resisting blocks 2002 can block the connecting ring 2004, the descending speed of the connecting ring 2004 can be reduced by repeating the operation, and finally the descending speed of the heavy object is continuously reduced, so as to reduce the impact force between the weight and the ground and avoid the condition that the weight is damaged.

It should be noted that the specific model specifications of the first motor 1002, the second motor, the driving gear 3009, the driven gear 3010 and the half gear 3006 need to be determined according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the first motor 1002, the second motor and the electric chain block body 100 and the principle thereof will be apparent to those skilled in the art and will not be described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A chain transmission mechanism of an electric chain hoist is characterized by comprising an electric chain hoist body (100),

the electric chain hoist comprises an electric chain hoist body (100), and is characterized in that a buffering mechanism (200) is installed at the bottom of the electric chain hoist body (100), the buffering mechanism (200) comprises a pair of connecting blocks (2001), a connecting groove (2003) is formed between the pair of connecting blocks (2001), a plurality of abutting blocks (2002) are installed inside the connecting groove (2003), a buffering cushion is installed at the top of each abutting block (2002), a connecting ring (2004) is connected inside the connecting groove (2003) in a sliding mode, the bottom of the connecting ring (2004) can be mutually extruded with the abutting blocks (2002), rotating shafts (2009) are symmetrically installed on two sides of the pair of connecting blocks (2001) through bearings, pull rods (2008) are connected to the outer sides of the rotating shafts (2009), a fixing block (2007) is arranged on one side of each pull rod (2008), a connecting shaft is connected between each fixing block (2007) and the pull rod (2008), a supporting rod (2006) is installed on one side of each fixing block (2007), driving mechanisms (300) are symmetrically installed on two sides of each connecting block (2001), and the output end of each driving mechanism (300) is connected with the supporting rod (2006).

2. The chain transmission mechanism of the electric chain block according to claim 1, wherein the electric chain block body (100) comprises a shell (1001), a gearbox and a roller are installed inside the shell (1001), a chain (1003) is wound on the outer side of the roller, the output end of the gearbox is in transmission connection with the roller, and the connecting ring (2004) is installed on the outer side of the chain (1003).

3. The chain transmission mechanism of the electric chain hoist of claim 2, characterized in that a first motor (1002) is installed on one side of the housing (1001), the output end of the first motor (1002) is in transmission connection with the input end of the gearbox, and the bottom of the chain (1003) is connected with a hook (1004).

4. The electric chain block chain transmission mechanism according to claim 3, wherein a fixing seat (2005) is installed at the bottom of the housing (1001), a through hole is formed in the fixing seat (2005), the chain (1003) can slide in the through hole, a pair of limiting grooves (2010) are formed in the bottom of the fixing seat (2005), limiting blocks (2012) are connected to the inside of the limiting grooves (2010) in a sliding mode, the limiting blocks (2012) are connected with the connecting block (2001), and a spring (2011) is connected between the limiting blocks (2012) and the limiting grooves (2010).

5. The electric chain block chain transmission mechanism according to claim 4, wherein the driving mechanism (300) comprises a supporting seat (3001), the supporting seat (3001) is connected with the connecting block (2001), one side of the supporting seat (3001) close to the connecting block (2001) is provided with a groove, the top of the supporting seat (3001) is provided with a base (3002), the base (3002) is internally provided with a second motor, the top of the supporting seat (3001) is provided with a supporting plate (3003), a driving shaft (3008) is connected to a central line of the supporting plate (3003) through a bearing, and the driving shaft (3008) is in transmission connection with an output end of the second motor.

6. The chain transmission mechanism of claim 5, wherein the support plate (3003) is connected to a pair of driven shafts (3007) through bearings, the pair of driven shafts (3007) are symmetrically installed at two sides of the driving shaft (3008), a connecting line of the center of the driven shaft (3007) is parallel to the support seat (3001), the driving gear (3009) is installed at the outer side of the driving shaft (3008), the pair of driven shafts (3007) are both installed at the outer side of the driven shaft (3010), and the driving gear (3009) and the driven gear (3010) are meshed and connected.

7. The chain transmission mechanism of the electric chain block as claimed in claim 6, wherein a half gear (3006) is installed on the outer side of each of the pair of driven shafts (3007), a rack (3005) is slidably connected to one side of the supporting plate (3003), and both sides of the rack (3005) can be engaged with the half gear (3006), and the rack (3005) is connected with the supporting rod (2006).

8. The electric chain block chain transmission mechanism as claimed in claim 7, wherein the driving gear (3009) and the driven gear (3010) have the same radius, the half gear (3006) has the same radius, and the sections of the limiting block (2012) and the limiting groove (2010) are isosceles trapezoids.

9. The electric chain block chain transmission mechanism according to claim 8, wherein a pair of limiting rings (3004) are installed at one side of the supporting plate (3003), and the rack (3005) is slidable inside the pair of limiting rings (3004).

10. The chain transmission mechanism of the electric chain block of claim 9, wherein a controller (1005) is disposed on one side of the housing (1001), and the controller (1005) is electrically connected to the first motor (1002) and the second motor.