CN214935467U

CN214935467U - Crane with overweight self-locking function

Info

Publication number: CN214935467U
Application number: CN202122643230.8U
Authority: CN
Inventors: 程志刚; 黄河; 井志胜
Original assignee: Xinxiang Vocational and Technical College
Current assignee: Xinxiang Vocational and Technical College
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2021-11-30
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses a hoist with overweight self-locking function relates to hoist technical field. This hoist with overweight self-locking function, including the support column, fixed mounting has the wedge supporting shoe on the lateral wall of support column, wedge supporting shoe top fixed mounting has the spout, surface sliding installs the base on the wedge supporting shoe, the inside self-locking mechanical system that is provided with of base, base top fixed mounting has the hydraulic stem, hydraulic stem top fixed mounting has the crossbeam, crossbeam middle part fixed mounting has the hoist organism. This hoist with overweight self-locking function when using, when the lifting hook colludes overweight material, through the crossbeam extrusion hydraulic stem downwards, cooperation second gear makes the second gear drive the stopper and gets into in the recess of seting up on the spout, makes base and spout keep relatively fixed, and the unable base that removes this moment avoids operating personnel to take wrong operation, reduces the emergence of accident.

Description

Crane with overweight self-locking function

Technical Field

The utility model relates to a hoist technical field specifically is a hoist with overweight self-locking function.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as a crane. The tyre crane features that its driving cab and crane control cab are combined into one, and it is formed by the evolution of crawler crane, and the crawler and walking frame of walking mechanism are changed into chassis with tyre, so overcoming the defect of damage to road surface caused by crawler plate of crawler crane.

After retrieval, the bridge crane with the authorization notice number of 206751227U and the overweight alarming function comprises a trolley, a main beam and an escalator, wherein the main beam is installed on the wall of a workshop, an alternating current magnetic control box is arranged on the main beam, an overweight alarm is arranged in a cab, a hoisting hook is arranged below a hoisting pulley block, a pressure sensor is arranged in the hoisting hook, and a transmission motor is arranged in the main beam; when materials are conveyed by the device, only an alarm is given out to remind workers when the weight of the materials exceeds the weight of the steel cable in normal use, and some operators without good performance can continue to use machinery to convey without the help of the alarm, so that the service life of the device is shortened, large accidents are easy to happen in serious conditions, and the life safety of users is threatened.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The not enough to prior art, the utility model provides a hoist with overweight self-locking function has solved the problem that above-mentioned background art mentioned.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a hoist with overweight self-locking function, includes the support column, fixed mounting has the wedge supporting shoe on the lateral wall of support column, wedge supporting shoe top fixed mounting has the spout, surface sliding installs the base on the wedge supporting shoe, the inside self-locking mechanical system that is provided with of base, the inside stabilizing mean that is provided with of wedge supporting shoe, base top fixed mounting has the hydraulic stem, hydraulic stem top fixed mounting has the crossbeam, crossbeam middle part fixed mounting has the hoist body, the inside rotation of hoist body installs the wind-up roll, the wind-up roll outer wall is around being equipped with the cable wire, cable wire one end fixed mounting has the lifting hook.

Preferably, the self-locking mechanism comprises a first toothed bar, a first gear is rotatably mounted on the inner wall of the base, a second gear is fixed at the axis of the first gear, a second toothed bar is slidably mounted on the inner wall of the base, and a limiting block is fixedly mounted on one side, away from the center of the base, of the second toothed bar.

Preferably, stabilizing mean is including the motor case, motor case top and base bottom fixed connection, motor case lateral wall fixed mounting has first support arm, first support arm inner wall slidable mounting has the second support arm, second support arm tip fixed mounting has cyclic annular buckle, motor case inner wall fixed mounting has servo motor, servo motor output fixed mounting has the hob, second support arm other end fixed mounting has the screw thread slider.

Preferably, the side wall of the sliding groove is provided with a groove with the size equal to that of the limiting block.

Preferably, the number of the second rack bars is two, and the two second rack bars are symmetrically arranged by taking the central axis of the first rack bar as a symmetry axis.

Preferably, the hydraulic rod is made of alloy steel with the material of 40 Cr.

Preferably, the center of the annular buckle is provided with a gap with the diameter equal to that of the steel cable.

Preferably, the side wall of the wedge-shaped supporting block is provided with a groove with the height equal to that of the first supporting arm.

(III) advantageous effects

The utility model provides a hoist with overweight self-locking function. The method has the following beneficial effects:

(1) this hoist with overweight self-locking function when using, when the lifting hook colludes overweight material, through the crossbeam extrusion hydraulic stem downwards, cooperation second gear makes in the second gear drives the stopper and gets into the recess of seting up on the spout, makes base and spout keep relatively fixed, and unable removal base this moment makes the device have self-locking function at the in-process that lifts by crane, avoids operating personnel to take wrong operation, reduces the emergence of accident.

(2) This hoist with overweight self-locking function when using, through starting servo motor, the cooperation hob, make the screw slider drive the second support arm along first support arm to keeping away from first support arm one side motion on the horizontal direction, make cyclic annular buckle to the lifting hook motion, fix the cable wire that catches on the material, make the device when transporting the material, can not make the material take place to rock on the way in the transport because of the air resistance that the material received, avoid the material to rock and lead to the cable wire to break, security when improving the device transport.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the self-locking mechanism of the present invention;

fig. 4 is the schematic view of the cross-sectional structure of the stabilizing mechanism of the present invention.

In the figure: 1. a support pillar; 2. a wedge-shaped support block; 3. a chute; 4. a base; 5. a self-locking mechanism; 51. a first rack bar; 52. a first gear; 53. a second gear; 54. a second rack bar; 55. a limiting block; 6. a stabilizing mechanism; 61. a motor case; 62. a first support arm; 63. a second support arm; 64. an annular buckle; 65. a servo motor; 66. a screw rod; 67. a threaded slider; 7. a hydraulic lever; 8. a cross beam; 9. a crane body; 10. a wind-up roll; 11. a steel cord; 12. and (4) a lifting hook.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a crane with an overweight self-locking function comprises a supporting column 1, wherein a wedge-shaped supporting block 2 is fixedly installed on the side wall of the supporting column 1 and provides supporting force for a hoisting machine, sliding grooves 3 are fixedly installed at the top of the wedge-shaped supporting block 2, the number of the sliding grooves 3 is two, a base 4 is slidably installed on the upper surface of the wedge-shaped supporting block 2, a self-locking mechanism 5 is arranged inside the base 4, the self-locking mechanism 5 comprises a first toothed bar 51, the bottom of a hydraulic rod 7 is fixedly connected with the first toothed bar 51, when the top of the hydraulic rod 7 is subjected to downward force, the first toothed bar 51 moves downwards, a first gear 52 is rotatably installed on the inner wall of the base 4, the first gear 52 is meshed with the first toothed bar 51, the first gear 52 is driven to rotate through the movement of the first toothed bar 51, a second gear 53 is fixed at the axis of the first gear 52, a second toothed bar 54 is slidably installed on the inner wall of the base 4, the second toothed bar 54 is meshed with the second gear 53, the second gear 53 rotates to enable the second rack bar 54 to move along the inner wall of the base 4 in the horizontal direction, the number of the second rack bars 54 is two, the two second rack bars 54 are symmetrically arranged by taking the central axis of the first rack bar 51 as a symmetry axis, the two second rack bars 54 enable the base 4 and the chute 3 to be more stable when limiting is carried out, one side, far away from the center of the base 4, of the second rack bar 54 is fixedly provided with a limiting block 55, the side wall of the chute 3 is provided with a groove with the size equal to that of the limiting block 55, when the hook 12 hooks overweight materials, the cross beam 8 extrudes the hydraulic rod 7 downwards to enable the first rack bar 51 to move downwards along the inner wall of the base 4 in the vertical direction, and the second rack bar 53 is matched to enable the second rack bar 54 to drive the limiting block 55 to move along the inner wall of the base 4 in the horizontal direction, the side far away from the center of the base 4 is driven by the limiting block 55 to enter the groove arranged on the chute 3, so that the base 4 and the chute 3 are kept relatively fixed, the base 4 can not be moved at the moment, so that the device has a self-locking function in the hoisting process, the phenomenon that an operator takes wrong operation is avoided, and the occurrence of accidents is reduced.

In this embodiment, 2 inside stabilizing mean 6 that are provided with of wedge supporting shoe, stabilizing mean 6 is including motor case 61, motor case 61 top and 4 bottom fixed connection of base, motor case 61 lateral wall fixed mounting has first supporting

arm

62, 2 lateral walls of wedge supporting shoe offer the recess that highly equals with first supporting arm 62, when making base 4 slide along spout 3, cooperation motor case 61, drive first supporting arm 62 and slide in the horizontal direction along wedge supporting shoe 2, make stabilizing mean 6 and lifting hook 12 keep the same direction of motion and rate of motion, do benefit to the stability of lifting hook 12 when improving the hoist material. A second supporting arm 63 is slidably mounted on the inner wall of the first supporting arm 62, an annular buckle 64 is fixedly mounted at the end of the second supporting arm 63, a gap with the same diameter as the steel cable 11 is arranged in the center of the annular buckle 64, so that the annular buckle 64 fixes the steel cable 11 when reaching a certain position, the stability of the lifting hook 12 during material transportation is improved, a servo motor 65 is fixedly mounted on the inner wall of the motor box 61, a screw rod 66 is fixedly mounted at the output end of the servo motor 65, the screw rod 66 is driven to rotate by starting the servo motor 65, a threaded slider 67 is fixedly mounted at the other end of the second supporting arm 63, the threaded slider 67 is in threaded connection with the screw rod 66, the threaded slider 67 is driven to move along the screw rod 66 in the horizontal direction by the rotation of the screw rod 66, the second supporting arm 63 is driven to move along the first supporting arm 62 in the horizontal direction away from the first supporting arm 62 by starting the servo motor 65 and matching with the screw rod 66, make cyclic annular buckle 64 move to lifting hook 12, fix the cable wire 11 that catches on the material, make the device when transporting the material, can not make the material take place to rock on the way in the transport because of the air resistance that the material received, avoid the material to rock and lead to the cable wire to break, security when improving the device transport.

In this embodiment, there is hydraulic stem 7 at 4 top fixed mounting on base, hydraulic stem 7 uses the alloy steel that the material is 40Cr, better intensity has, make the device can not take place deformation when the lifting heavy object, 7 top fixed mounting on hydraulic stem have

crossbeam

8, 8 middle part fixed mounting on crossbeam has hoist body 9, hoist body 9 is inside to be rotated and installs wind-up roll 10, wind-up roll 10 outer wall is around being equipped with

cable wire

11, 11 one end fixed mounting of cable wire have lifting hook 12, through starting the hoist, make wind-up roll 10 rotate, cooperation cable wire 11, make lifting hook 12 drive material promote in order to accomplish the material handling operation.

The working principle is as follows: when the crane with the overweight self-locking function is used, the crane is started, the wind-up roller 10 rotates, the steel cable 11 is released, the hook 12 drives the material to be lifted so as to complete material carrying operation, when the hook 12 hooks the overweight material, the cross beam 8 downwards extrudes the hydraulic rod 7, the first toothed bar 51 downwards moves along the inner wall of the base 4 in the vertical direction, the second toothed bar 54 drives the limiting block 55 to move along the inner wall of the base 4 in the horizontal direction to one side far away from the center of the base 4 by matching with the second gear 53 until the limiting block 55 enters the groove formed in the sliding groove 3, so that the base 4 and the sliding groove 3 are relatively fixed, at the moment, the base 4 cannot be moved, the device has the self-locking function in the lifting process, an operator is prevented from taking wrong operation, and accidents are reduced;

after the weight of the materials to be carried is reduced, the hydraulic rod 7 is reset to drive the first toothed bar 51 to move upwards in the vertical direction, and the second toothed bar 54 drives the limiting block 55 to be separated from the groove formed in the chute 3 by matching with the second gear 53, so that the base 4 and the chute 3 are not fixed any longer, at the moment, the materials can be lifted again for carrying operation, when the material is hooked on the ground, the servo motor 65 is started to match the screw rod 66, so that the screw slider 67 drives the second support arm 63 to move along the first support arm 62 to the side far away from the first support arm 62 in the horizontal direction, so that the annular buckle 64 moves towards the hook 12, the steel cable 11 hooking the materials is fixed, so that the materials cannot shake during carrying due to air resistance of the materials when the device transports the materials, the problem that the steel cable is broken due to shaking of the materials is avoided, and safety of the device during carrying is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hoist with overweight self-locking function, includes support column (1), its characterized in that: fixed mounting has wedge supporting shoe (2) on the lateral wall of support column (1), wedge supporting shoe (2) top fixed mounting has spout (3), surface sliding installs base (4) on wedge supporting shoe (2), base (4) inside is provided with self-locking mechanical system (5), wedge supporting shoe (2) inside is provided with stabilizing mean (6), base (4) top fixed mounting has hydraulic stem (7), hydraulic stem (7) top fixed mounting has crossbeam (8), crossbeam (8) middle part fixed mounting has crane body (9), crane body (9) inside rotation installs wind-up roll (10), wind-up roll (10) outer wall is around being equipped with cable wire (11), cable wire (11) one end fixed mounting has lifting hook (12).

2. The crane with the overweight self-locking function as claimed in claim 1, wherein: self-locking mechanism (5) are including first ratch (51), rotate on the inner wall of base (4) and install first gear (52), the axle center department of first gear (52) is fixed with second gear (53), base (4) inner wall slidable mounting has second ratch (54), base (4) center one side fixed mounting is kept away from in second ratch (54) has stopper (55).

3. The crane with the overweight self-locking function as claimed in claim 1, wherein: stabilizing mean (6) is including motor case (61), motor case (61) top and base (4) bottom fixed connection, motor case (61) lateral wall fixed mounting has first support arm (62), first support arm (62) inner wall slidable mounting has second support arm (63), second support arm (63) tip fixed mounting has cyclic annular buckle (64), motor case (61) inner wall fixed mounting has servo motor (65), servo motor (65) output end fixed mounting has hob (66), second support arm (63) other end fixed mounting has threaded slide block (67).

4. A crane with an overweight self-locking function as claimed in claim 2, characterized in that: the side wall of the sliding groove (3) is provided with a groove with the size equal to that of the limiting block (55).

5. A crane with an overweight self-locking function as claimed in claim 2, characterized in that: the number of the second rack bars (54) is two, and the two second rack bars (54) are symmetrically arranged by taking the central axis of the first rack bar (51) as a symmetry axis.

6. The crane with the overweight self-locking function as claimed in claim 1, wherein: the hydraulic rod (7) is made of alloy steel with the material of 40 Cr.

7. A crane with an overweight self-locking function as claimed in claim 3, characterized in that: the center of the annular buckle (64) is provided with a gap with the diameter equal to that of the steel cable (11).

8. A crane with an overweight self-locking function as claimed in claim 3, characterized in that: the side wall of the wedge-shaped supporting block (2) is provided with a groove with the height equal to that of the first supporting arm (62).