CN220684563U - Positioning and retaining mechanism of elevator - Google Patents
Positioning and retaining mechanism of elevator Download PDFInfo
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- CN220684563U CN220684563U CN202322303571.XU CN202322303571U CN220684563U CN 220684563 U CN220684563 U CN 220684563U CN 202322303571 U CN202322303571 U CN 202322303571U CN 220684563 U CN220684563 U CN 220684563U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000000670 limiting effect Effects 0.000 claims description 9
- 230000010354 integration Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 1
- 210000001503 joint Anatomy 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a positioning and retaining mechanism of a lifter, which is characterized by comprising a positioning and retaining assembly, a cargo carrying platform and a lifter guide rail, wherein the positioning and retaining assembly is arranged at two sides of the cargo carrying platform and comprises a transmission assembly, a band-type brake assembly and a ball screw assembly, the transmission assembly is connected with the cargo carrying platform through a connecting frame, and the transmission assembly is also connected with the band-type brake assembly and the ball screw assembly through a guide rail pair; the elevator guide rail is arranged in the middle of the band-type brake assembly; the transmission assembly can drive the ball screw assembly to vertically move downwards, so that the band-type brake assembly clamps the guide rail of the elevator, and a disc spring for absorbing impact force of the band-type brake assembly on the guide rail of the elevator is arranged in the ball screw assembly. The problem that when equipment or materials which are in butt joint with the lifting machine enter and exit the lifting machine cargo carrying platform, the position of the cargo carrying platform is lifted is solved, and the butt joint equipment or materials are ensured to enter and exit the lifting machine cargo carrying platform smoothly. Good positioning stability, simple structure, low cost, good applicability and economy.
Description
Technical Field
The utility model relates to the technical field of elevator positioning, in particular to a positioning and retaining mechanism of an elevator.
Background
With the continuous application of logistics automation equipment, the use amount of the hoisting machine is gradually increased. The equipment (such as AGV) or the material that dock with the lifting machine has strict requirement to the difference in height of interface, when dock equipment or material business turn over the cargo bed of lifting machine, can take place elastic deformation because of the chain of cargo bed, cause the lift of cargo bed to cause dock equipment or the unable smooth cargo bed of business turn over lifting machine of material. Meanwhile, the existing elevator has the problems of complex structure, high cost, poor positioning stability and the like, so that a novel positioning and retaining mechanism of the elevator is needed to solve the problems.
Disclosure of Invention
The utility model aims at: the positioning and retaining mechanism of the elevator is used for solving the problems that the existing positioning and retaining mechanism of the elevator is complex in structure, high in cost and poor in positioning stability when lifting occurs at the position of a current cargo carrying platform, and ensures that docking equipment or materials smoothly enter and exit the cargo carrying platform of the elevator, and has good positioning stability, simple structure, low cost and good applicability and economy.
The technical scheme of the utility model is as follows:
the positioning and retaining mechanism of the elevator comprises a positioning and retaining assembly, a cargo carrying platform and elevator guide rails, wherein the positioning and retaining assembly is arranged at two sides of the cargo carrying platform and comprises a transmission assembly, a band-type brake assembly and a ball screw assembly, the transmission assembly is connected with the cargo carrying platform through a connecting frame, and the transmission assembly is also connected with the band-type brake assembly and the ball screw assembly through guide rail pairs; the elevator guide rail is arranged in the middle of the band-type brake assembly; the transmission assembly can drive the ball screw assembly to vertically move downwards, so that the band-type brake assembly clamps the guide rail of the elevator, and a disc spring for absorbing impact force of the band-type brake assembly on the guide rail of the elevator is arranged in the ball screw assembly.
Further, the ball screw assembly comprises a wedge plate, and the wedge plate is used for transmitting power by a ball screw pair; the two ends of the ball screw pair are respectively provided with a top bearing seat and a bottom bearing, and the middle of the ball screw pair is sequentially provided with a pressing plate and a pushing block assembly; the disc spring is arranged between the pressing plate and the pushing block assembly; and two ends of the pressing plate and pushing block assembly are connected with the guide rail pair.
Furthermore, at least two bolts are further arranged between the pressing plate and the pushing block assembly, one end of each bolt penetrates through the pressing plate to conduct unidirectional limiting, and the other end of each bolt is fixedly connected with the pushing block assembly.
Further, two ends of the pressing plate are provided with base plates with limiting function.
Further, the wedge plate and the pushing block assembly are integrally arranged, and two ends of the pushing block assembly are fixedly connected with the guide rail pair.
Further, the band-type brake assembly comprises an upper clamping piece; the top of the upper clamping piece is provided with a bearing, the bottom of the upper clamping piece is provided with a shaft, the upper clamping piece is connected with a lower clamping piece through the shaft, the shaft is also connected with a bearing seat, the upper clamping piece and the lower clamping piece are integrally arranged, and the bottom of the lower clamping piece is provided with a clamping plate for clamping a guide rail of a hoist.
Further, the bearings are in sliding connection with two sides of the wedge-shaped plate, and can drive the bearings to rotate along with the vertical downward movement of the wedge-shaped plate, so that the upper clamping piece is opened, the lower clamping piece is synchronously closed, and the clamping plates are driven to clamp the guide rail of the elevator.
Further, the bearing seat is fixedly connected with a bottom bearing of the ball screw assembly.
Further, the transmission assembly comprises a belt wheel and a tensioning device, and the belt wheel is driven by a speed reducing motor in transmission connection.
Further, the belt wheel is connected with a ball screw pair of the ball screw assembly; the belt wheel can be driven by a gear motor to enable the ball screw pair to rotate, the pressing plate vertically and downwards displaces, and the pushing block assembly is driven to vertically and downwards displace through the disc spring, so that the wedge-shaped plate is driven to vertically and downwards move.
Compared with the prior art, the utility model has the beneficial effects that:
1. under the guiding action of the guide rail pair, the wedge-shaped plate of the ball screw assembly is driven by the transmission assembly to vertically move downwards, the upper clamping piece of the band-type brake assembly is driven to open by friction with the bearing of the band-type brake assembly, and the lower clamping piece is synchronously closed, so that the guide rail of the elevator is clamped, the position of a cargo carrying platform is kept in place, the lifting of the cargo carrying platform caused by elastic deformation of a chain of the cargo carrying platform is avoided, and therefore docking equipment or materials cannot smoothly enter and exit the cargo carrying platform of the elevator, the docking equipment or materials are ensured to smoothly enter and exit the cargo carrying platform of the elevator, and the elevator has good positioning stability, simple structure, low cost and good applicability and economy;
2. the positioning and retaining mechanism of the elevator can adopt a low-hardness material for the backing plate, so that the abrasion to the track of the guide rail pair is reduced; a guide rail pair is arranged between the connecting frame and the ball screw assembly, so that vertical guiding is realized; the smooth running is ensured, and the two groups of guide rail pairs are symmetrically arranged at the two sides of the ball screw pair, so that the wedge-shaped plate has good stability when being displaced up and down, no inclination is generated, and the clamping synchronism of the lower clamping piece is ensured;
3. the left end and the right end of the lower clamping piece are of asymmetric structures, so that the open state can be kept under the action of gravity when the lower clamping piece is not acted by the wedge-shaped plate;
4. a locating and retaining mechanism of a hoister is characterized in that a clamping plate and a lower clamping piece are in split design, so that replacement and maintenance of the clamping plate are facilitated.
Drawings
Fig. 1 is a perspective view of a positioning and retaining mechanism of a hoist.
Fig. 2 is a schematic structural view of a positioning and holding mechanism of a hoist
Fig. 3 is a schematic structural view of a ball screw assembly and a guide rail pair of a positioning and holding mechanism of a hoist.
Reference numerals: 100-cargo loading platform, 200-elevator guide rail, 1-connecting frame, 2-transmission component, 21-belt pulley, 22-gear motor, 23-tensioning device, 3-band-type brake component, 31-upper clamping piece, 32-bearing, 33-shaft, 34-lower clamping piece, 35-bearing seat, 36-clamping plate, 4-guide rail pair, 5-ball screw component, 51-wedge plate, 52-ball screw pair, 53-top bearing seat, 54-bottom bearing, 55-pressing plate, 56-pushing block component, 57-backing plate, 58-disc spring and 59-bolt.
Detailed Description
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The features and capabilities of the present utility model are described in further detail below in connection with examples.
Referring to fig. 1-3, a positioning and holding mechanism of a lifter comprises a positioning and holding assembly, a carrying platform 100 and a lifter guide rail 200, wherein the positioning and holding assembly is arranged at two sides of the carrying platform 100, the positioning and holding assembly comprises a transmission assembly 2, a band-type brake assembly 3 and a ball screw assembly 5, the transmission assembly 2 is connected with the carrying platform 100 through a connecting frame 1, and the transmission assembly 2 is also connected with the band-type brake assembly 3 and the ball screw assembly 5 through a guide rail pair 4; the elevator guide rail 200 is arranged in the middle of the band-type brake assembly 3; the transmission assembly 2 can drive the ball screw assembly 5 to vertically move downwards, so that the band-type brake assembly 3 clamps the elevator guide rail 200, and a disc spring 58 for absorbing impact force of the band-type brake assembly 3 on the elevator guide rail 200 is arranged in the ball screw assembly 5.
The ball screw assembly 5 comprises a wedge plate 51, and the wedge plate 51 is used for transmitting power by a ball screw pair 52; the two ends of the ball screw pair 52 are respectively provided with a top bearing seat 53 and a bottom bearing 54, and a pressing plate 55 and a pushing block assembly 56 are sequentially arranged in the middle of the ball screw pair 52; the disc spring 58 is arranged between the pressing plate 55 and the push block assembly 56; both ends of the pressing plate 55 and the pushing block assembly 56 are connected with the guide rail pair 4.
At least two bolts 59 are further arranged between the pressing plate 55 and the pushing block assembly 56, one end of each bolt 59 penetrates through the pressing plate 55 to conduct unidirectional limiting, the bolts are not fixed in the axial direction, the unidirectional limiting function is achieved, and the other end of each bolt 59 is fixedly connected with the pushing block assembly 56. The disc springs 58 are pressed by the bolts 59, and impact force of the band-type brake assembly 3 on the elevator guide rail 200 is absorbed by compression of the disc springs 58, so that buffering is realized.
Two ends of the pressing plate 55 are provided with backing plates 57 which play a limiting role.
The wedge plate 51 and the pushing block assembly 56 are integrally arranged, so that synchronous lifting movement is realized. Both ends of the push block assembly 56 are fixedly connected with the guide rail pair 4.
The band-type brake assembly 3 comprises an upper clamping piece 31; the top of going up to press from both sides and hold piece 31 is provided with bearing 32, and the bottom is provided with axle 33, goes up to press from both sides and hold piece 31 and be connected with down to press from both sides and hold piece 34 through axle 33, and axle 33 still is connected with bearing frame 35, goes up to press from both sides and hold piece 31 and down to press from both sides and hold piece 34 integration setting, the bottom that holds piece 34 down is provided with the splint 36 that presss from both sides lifting machine guide rail 200.
The bearing 32 is slidably connected to two sides of the wedge plate 51, and as the wedge plate 51 moves vertically downward, the bearing 32 can be driven to rotate, so that the upper clamping member 31 is opened, the lower clamping member 34 is synchronously closed, and the clamping plate 36 is driven to clamp the elevator guide rail 200.
The bearing seat 35 is fixedly connected with a bottom bearing 54 of the ball screw assembly 5.
The transmission assembly 2 comprises a belt pulley 21 and a tensioning device 23, wherein the belt pulley 21 is driven by a reduction motor 22 in transmission connection.
The belt pulley 21 is connected with a ball screw pair 52 of the ball screw assembly 5; the pulley 21 can be driven by the gear motor 22 to rotate the ball screw assembly 52, the pressing plate 55 vertically and downwardly displaces, and the pushing block assembly 56 is driven by the disc spring 58 to vertically and downwardly displace, so that the wedge plate 51 is driven to vertically and downwardly move.
Principle of operation
Under the limiting action of the guide rail pair 4, the wedge-shaped plate 51 of the ball screw assembly 5 is driven by the transmission assembly 2 to vertically move downwards, the upper clamping piece 31 of the band-type brake assembly 3 is driven to open by friction with the bearing 32 of the band-type brake assembly 3, and the lower clamping piece 34 is synchronously closed, so that the elevator guide rail 200 is clamped, the position of the cargo carrying platform 100 is kept in place, the lifting of the cargo carrying platform caused by elastic deformation of a chain of the cargo carrying platform is avoided, and docking equipment or materials cannot smoothly enter and exit the cargo carrying platform of an elevator.
During lifting of the cargo bed 100, the wedge plate 51 is in a high position, and the lower clamp member 34 is kept in an open state under the action of gravity, so that the clamping plate 36 and the elevator guide rail 200 keep a safe distance, friction does not occur, and the cargo bed 100 can normally lift and run.
When the cargo carrying platform 100 needs to stop, the system provides a signal to the gear motor 22 to start rotating positively, drives the belt pulley 21 to rotate, drives the ball screw pair 52 to rotate through belt transmission, enables the pressing plate 55 to displace downwards, drives the push block assembly 56 to displace downwards through the disc spring 58, further drives the wedge plate 51 to displace downwards to a low position, and the bearing 32 is acted by the wedge plate 51 to enable the upper clamping piece 31 to open, and because the upper clamping piece 31 and the lower clamping piece 34 are integrally arranged, the lower clamping piece 34 is synchronously closed at the moment, so that the clamping plate 36 clamps the elevator guide rail 200 like pliers, the position of the cargo carrying platform 100 is kept in place, and displacement in the up-down direction cannot be generated due to load change.
When the cargo table 100 needs to be lifted again, the system provides a signal to the gear motor 22 to start reversing, the pressing plate 55 is driven to move upwards in the same way, the pushing block assembly 56 is driven to move upwards through the bolt 59, the wedge plate 51 is further driven to return to the high position, the bearing 32 is not acted by the wedge plate 51 any more, the lower clamping piece 34 is opened under the action of gravity, and the normal lifting state is restored.
The problem that when equipment (such as AGVs and the like) or materials which are in butt joint with a hoist enter and exit the hoist cargo carrying platform 100, the position of the cargo carrying platform 100 is lifted is solved, the butt joint equipment or the materials are ensured to enter and exit the hoist cargo carrying platform 100 smoothly, and the elevator cargo carrying platform has good positioning stability, simple structure, low cost, good applicability and economy;
the pad 57 can be made of low-hardness materials, so that abrasion to the track of the guide rail pair 4 is reduced; a guide rail pair 4 is arranged between the connecting frame 1 and the ball screw assembly to realize vertical guiding; the smooth running is ensured, the two groups of guide rail pairs 4 are symmetrically arranged on the two sides of the ball screw pair 52, so that the wedge plate 51 has good stability when being displaced up and down, no inclination is generated, and the clamping and holding simultaneity of the lower clamping and holding piece 34 is ensured;
the left and right ends of the lower clamping piece 34 are of an asymmetric structure, so that the opened state can be kept under the action of gravity when the lower clamping piece is not acted by the wedge-shaped plate 51; the clamping plate 36 and the lower clamping piece 34 are in a split design, so that the clamping plate 36 is convenient to replace and maintain.
The foregoing examples merely represent specific embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present application, which fall within the protection scope of the present application.
Claims (10)
1. The positioning and retaining mechanism of the elevator is characterized by comprising a positioning and retaining assembly, a cargo carrying platform (100) and an elevator guide rail (200), wherein the positioning and retaining assembly is arranged on two sides of the cargo carrying platform (100), the positioning and retaining assembly comprises a transmission assembly (2), a band-type brake assembly (3) and a ball screw assembly (5), the transmission assembly (2) is connected with the cargo carrying platform (100) through a connecting frame (1), and the transmission assembly (2) is also connected with the band-type brake assembly (3) and the ball screw assembly (5) through a guide rail pair (4); the elevator guide rail (200) is arranged in the middle of the band-type brake assembly (3); the transmission assembly (2) can drive the ball screw assembly (5) to vertically move downwards, so that the band-type brake assembly (3) clamps the elevator guide rail (200), and a disc spring (58) for absorbing impact force of the band-type brake assembly (3) on the elevator guide rail (200) is arranged in the ball screw assembly (5).
2. A positioning and holding mechanism of a hoist according to claim 1, characterized in that the ball screw assembly (5) comprises a wedge plate (51), the wedge plate (51) being power-transmitted by a ball screw pair (52); the two ends of the ball screw pair (52) are respectively provided with a top bearing seat (53) and a bottom bearing (54), and a pressing plate (55) and a pushing block assembly (56) are sequentially arranged in the middle of the ball screw pair (52); the disc spring (58) is arranged between the pressing plate (55) and the pushing block assembly (56); and two ends of the pressing plate (55) and the pushing block assembly (56) are connected with the guide rail pair (4).
3. The positioning and retaining mechanism of a lifter according to claim 2, characterized in that at least two bolts (59) are further arranged between the pressing plate (55) and the pushing block assembly (56), one end of each bolt (59) penetrates through the pressing plate (55) to perform unidirectional limiting, and the other end of each bolt is fixedly connected with the pushing block assembly (56).
4. A positioning and holding mechanism for a lifter according to claim 2, characterized in that the two ends of the pressing plate (55) are provided with a spacer plate (57) for limiting.
5. The positioning and retaining mechanism of a lifter according to claim 2, characterized in that the wedge plate (51) is integrally arranged with a push block assembly (56), and both ends of the push block assembly (56) are fixedly connected with the guide rail pair (4).
6. A positioning and holding mechanism for a hoisting machine as claimed in any one of claims 2-5, characterized in that the band-type brake assembly (3) comprises an upper clamping member (31); the top of going up clamp embracing piece (31) is provided with bearing (32), and the bottom is provided with axle (33), goes up clamp embracing piece (31) and is connected with down clamp embracing piece (34) through axle (33), and axle (33) still are connected with bearing frame (35), go up clamp embracing piece (31) and down clamp embracing piece (34) integration setting, the bottom of down clamp embracing piece (34) is provided with splint (36) that clamp lifting machine guide rail (200).
7. The positioning and retaining mechanism of a hoist according to claim 6, characterized in that the bearing (32) is slidably connected to two sides of the wedge plate (51), and the bearing (32) is driven to rotate along with the vertical downward movement of the wedge plate (51), so that the upper clamping member (31) is opened, and the lower clamping member (34) is synchronously closed, so that the clamping plate (36) is driven to clamp the hoist rail (200).
8. A positioning and holding mechanism of a hoisting machine according to claim 6, characterized in that the bearing housing (35) is fixedly connected to the bottom bearing (54) of the ball screw assembly (5).
9. A positioning and holding mechanism for a hoisting machine as claimed in any one of claims 2-5, characterized in that the transmission assembly (2) comprises a pulley (21) and a tensioning device (23), the pulley (21) being driven by a geared reducing motor (22).
10. The positioning and holding mechanism of a hoist as claimed in claim 9, characterized in that the pulley (21) is connected to a ball screw pair (52) of a ball screw assembly (5); the belt wheel (21) can be driven by a gear motor (22), so that the ball screw pair (52) rotates, the pressing plate (55) vertically and downwards displaces, the pushing block assembly (56) is driven by the disc spring (58) to vertically and downwards displace, and the wedge-shaped plate (51) is driven to vertically and downwards move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322303571.XU CN220684563U (en) | 2023-08-25 | 2023-08-25 | Positioning and retaining mechanism of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322303571.XU CN220684563U (en) | 2023-08-25 | 2023-08-25 | Positioning and retaining mechanism of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220684563U true CN220684563U (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322303571.XU Active CN220684563U (en) | 2023-08-25 | 2023-08-25 | Positioning and retaining mechanism of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220684563U (en) |
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2023
- 2023-08-25 CN CN202322303571.XU patent/CN220684563U/en active Active
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