Lifting anti-falling brake device

Abstract

The utility model discloses a lifting anti-falling brake device, and relates to the technical field of industrial automation. The device comprises a cargo carrying table, lifting guide rails are arranged on the left side and the right side of the cargo carrying table, a plurality of steel wire cables are arranged above the cargo carrying table, and a brake driving mechanism is arranged on the cargo carrying table; the brake driving mechanism comprises a plurality of brake response assemblies, two brake linkage assemblies and two brake action assemblies. Each brake response assembly comprises a cargo carrying table cable connecting structure arranged below a steel wire cable. By arranging the brake mechanism, the problems that the falling risk caused by breakage of a steel cable is not eradicated, the larger the lifting distance is, the longer the rack is, the higher the cost is, the meshing stress of the gear and the rack is limited, the gear and the rack are not suitable for large-load scenes, the technical links are more, and the brake requirements are more are solved. Detection is reliable, electricity is guaranteed, a telescopic rod can provide force to meet different loads and different falling situations, and the overall reliability is poor.

Description

TECHNICAL FIELD

[0001] The utility model belongs to industrial automation technical field, especially, it is involved in the lifting anti -fall brake device. BACKGROUND

[0002] The existing lifting anti -fall brake device is mainly divided into three categories, the first kind is optimization type, for example, through increasing the pulley block, reduces the force of lifting steel cable, reduces the risk of steel wire fracture, the second kind is increasing external device, when falling, the effect of stopping is produced, has the additional gear rack mechanism, when falling, the gear rotation speed is detected, exceeds the predetermined value, through the gear shaft brake, the rack is connected with the guide rail, thereby generating brake, the third kind is through increasing the electric telescopic rod, the brake pad is fixed at the rod end, detects falling, the electric telescopic rod extrudes the brake pad, and the guide rail is produced friction thereby braking

[0003] But the above three kinds of anti -fall brake device has corresponding disadvantages in the using process, wherein the optimization type is only technical optimization, and the risk of falling caused by steel cable fracture is not eradicated, the problem of increasing external device is that the longer the rack is, the higher the cost is, and the force of gear rack engagement is limited, which is not suitable for large load scene, and the problem of increasing the electric telescopic rod is that the technical link is more, needs many conditions to meet braking, must have reliable detection, ensure that there is electricity, the telescopic rod can provide force to meet different load and different falling scene, and the overall reliability is poor. UTILITY MODEL CONTENTS

[0004] The utility model discloses a lifting anti -fall brake device, through setting up brake mechanism, solve, the risk of falling caused by steel cable fracture is not eradicated, the longer the rack is, the higher the cost is, and the force of gear rack engagement is limited, which is not suitable for large load scene, the technical link is more, needs many conditions to meet braking, must have reliable detection, ensure that there is electricity, the telescopic rod can provide force to meet different load and different falling scene, and the overall reliability is poor.

[0005] To solve the above technical problem, the utility model is realized through the following technical schemes:

[0006] The utility model discloses a lifting anti -fall brake device, including the cargo platform, the left side and the right side of the cargo platform are all provided with the lifting guide rail, the top of the cargo platform is provided with a plurality of steel wire cables, is provided with the brake drive mechanism on the cargo platform;

[0007] The brake driving mechanism comprises a plurality of brake response assemblies, two brake linkage assemblies and two brake action assemblies.

[0008] Further, the outer wall of the cargo platform cable connecting structure is slidably connected with a spring spacing sleeve, the spring spacing sleeve is located between the two lower anti-collision washers, a rectangular spring is sleeved on the outer wall of the spring spacing sleeve, the cargo platform cable connecting structure is threadedly connected with two nuts through the threaded features, and the outer wall of the cargo platform cable connecting structure is fixedly connected with a toggle mechanism.

[0009] Further, the outer wall of the cargo platform cable connecting structure is slidably connected with a spring spacing sleeve, the spring spacing sleeve is located between the two lower anti-collision washers, a rectangular spring is sleeved on the outer wall of the spring spacing sleeve, the cargo platform cable connecting structure is threadedly connected with two nuts through the threaded features, and the outer wall of the cargo platform cable connecting structure is fixedly connected with a toggle mechanism.

[0010] Further, the brake linkage assembly comprises two cargo platform brake mechanism fixed bottom surfaces fixedly connected to the top of the lifting guide rail, two brake link shafts are fixedly connected to the left side of the cargo platform brake mechanism fixed bottom surface, a guide groove is formed in the left side of the cargo platform brake mechanism fixed bottom surface, the lifting guide rail slidably penetrates the guide groove, and brake links are fixedly connected to the outer walls of the two brake link shafts.

[0011] Further, the left side of the toggle mechanism slidably penetrates the right end hole of the brake link and is adapted to the right hollow section of the brake link, a pin shaft is fixedly connected to the inner wall of the left end hole of the brake link, a lifting link is fixedly connected to the outer wall of the pin shaft, a long pin shaft is fixedly connected to the bottom of the lifting link, and two rotating links are fixedly connected to the bottom of the long pin shaft.

[0012] Further, the brake assembly comprises two brake seats fixedly connected to the left side of the fixed bottom surface of the loading platform brake mechanism, the side close to each other of the two brake seats is provided with a slope, the left side of the two brake seats is fixedly connected with two fixing blocks, the brake seat is fixed on the brake seat through the fixing block, the inner wall of the two rotating connecting rods is rotatably connected with a brake wheel shaft, and the outer wall of the two brake wheel shafts is fixedly connected with a brake wheel.

[0013] Further, the brake assembly comprises two brake seats fixedly connected to the left side of the fixed bottom surface of the loading platform brake mechanism, the side close to each other of the two brake seats is provided with a slope, the left side of the two brake seats is fixedly connected with two fixing blocks, the brake seat is fixed on the brake seat through the fixing block, the inner wall of the two rotating connecting rods is rotatably connected with a brake wheel shaft, and the outer wall of the two brake wheel shafts is fixedly connected with a brake wheel.

[0014] The utility model has the following beneficial effects:

[0015] 1. In normal state, when the loading platform moves upward, if the brake wheel contacts with the guide rail and generates friction braking, it will consume extra energy, increase the power required for lifting the loading platform, and at this time, the brake wheel is in the lowest position without contacting with the guide rail, so there is no braking effect, which can avoid unnecessary energy loss, reduce the operation cost of the equipment, reduce the friction between the brake wheel and the guide rail, and prolong the service life of the two components.

[0016] 2. In abnormal state, once the steel wire cable is broken, the loading platform cable connecting structure can quickly respond under the action of the rectangular spring resilience, a series of linkage mechanisms are used to make the brake wheel generate friction with the guide rail and quickly stop the loading platform, so as to minimize the falling distance and speed of the loading platform, effectively avoid serious personnel injury and property loss caused by the falling of the loading platform, greatly improve the safety of the equipment, and ensure that the braking system can reliably start and run in emergency.

[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is partial structure schematic view of brake driving mechanism of the utility model;

[0021] Figure 3 It is partial structure schematic view of brake response component of the utility model;

[0022] Figure 4 It is partial structure schematic view of brake response component of the utility model Figure 2 It is enlarged structure schematic view of A of the utility model;

[0023] Figure 5 It is enlarged structure schematic view of B of the utility model Figure 3 It is enlarged structure schematic view of B of the utility model.

[0024] In the drawing, the component list represented by each sign is as follows:

[0025] 1, lifting guide rail; 2, steel wire cable; 3, loading platform; 4, X direction lifting guide wheel; 5, Y direction guide wheel; 6, loading platform cable connection structure; 61, screw thread feature; 7, loading platform connection plane; 8, loading platform brake mechanism fixed bottom surface; 9, loading platform stand; 91, slot hole; 10, anti-collision gasket; 11, spring spacer sleeve; 12, rectangular spring; 13, nut; 14, actuating mechanism; 15, screw rod end lock cover; 16, bolt; 17, guide slot; 18, pin shaft; 19, fixed block; 20, lifting connecting rod; 21, long pin shaft; 22, rotary connecting rod; 23, brake wheel shaft; 24, brake wheel; 25, brake connecting rod shaft; 26, brake connecting rod; 27, brake seat; 271, inclined surface. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-5The utility model discloses a lifting anti -fall brake device, including the loading platform 3, the left side and the right side of loading platform 3 all are provided with lifting guide rail 1, the top of loading platform 3 is provided with a plurality of steel wire cable 2, be provided with brake drive mechanism on loading platform 3, and brake drive mechanism includes a plurality of brake response assembly, two brake linkage assemblies and two brake effect assemblies, and brake response assembly includes the loading platform cable connection structure 6 of setting below steel wire cable 2, is set up on the outer wall of loading platform cable connection structure 6 thread feature 61, the bottom of steel wire cable 2 is wound on the roller of loading platform cable connection structure 6, and is fixed through wire rope buckle, the top of lifting guide rail 1 is fixedly connected with loading platform connection plane 7, and the bottom of loading platform cable connection structure 6 extends to loading platform connection plane 7, and the outer wall of loading platform connection plane 7 is slidably connected with a plurality of anti -collision shims 10, two anti -collision shims 10 below are located in loading platform connection plane 7, and the anti -collision shim 10 above is located in loading platform connection plane 7, and the outer wall of loading platform cable connection structure 6 is slidably connected with spring interval sleeve 11, and spring interval sleeve 11 is located between two anti -collision shims 10 below, and the outer wall of spring interval sleeve 11 is sleeved with rectangular spring 12, and loading platform cable connection structure 6 is screwed with two nuts 13 through thread feature 61, and loading platform cable connection structure 6 is fixedly connected with the knob mechanism 14 on the outer wall, and the outer wall of loading platform cable connection structure 6 is slidably connected with lead screw end lock cover 15, and the bottom of loading platform cable connection structure 6 is screwed with bolt 16, and the top of loading platform 3 is fixedly connected with loading platform stand 9, and the front side of loading platform stand 9 is provided with slot 91, and the front side of knob mechanism 14 slides through slot 91 and extends to the outside, and the upper end of loading platform cable connection structure 6 is connected with steel wire cable 2, and the lower end sequentially passes through anti -collision shim 10, loading platform connection plane 7, anti -collision shim 10, spring interval sleeve 11, rectangular spring 12, anti -collision shim 10, and is locked through thread feature 61 two nuts 13 in sequence, and sequentially passes through knob mechanism 14, lead screw end lock cover 15, and finally is locked with bolt 16, and knob mechanism 14 passes through the slot 91 of loading platform stand 9.

[0028] The brake linkage assembly comprises two cargo platform brake mechanism fixed bases 8 fixedly connected at the top of the lifting guide rails 1, two brake linkage shafts 25 fixedly connected at the left side of the cargo platform brake mechanism fixed bases 8, guide grooves 17 formed at the left side of the cargo platform brake mechanism fixed bases 8, the lifting guide rails 1 slidingly penetrating the guide grooves 17, brake linkage rods 26 fixedly connected to the outer wall of the two brake linkage shafts 25, the left side of the switch mechanism 14 slidingly penetrating the right end hole of the brake linkage rods 26 and being matched with the right empty section of the brake linkage rods 26, pin shafts 18 fixedly connected to the inner wall of the left end hole of the brake linkage rods 26, lifting linkage rods 20 fixedly connected to the outer wall of the pin shafts 18, long pin shafts 21 fixedly connected to the bottom of the lifting linkage rods 20, two rotating linkage rods 22 fixedly connected to the bottom of the long pin shafts 21, the brake linkage shafts 25 and the guide grooves 17 being installed on the cargo platform brake mechanism fixed bases 8, the right end hole of the brake linkage rods 26 being matched with the switch mechanism 14, the left end hole being connected with the lifting linkage rods 20 through the pin shafts 18, and the bottom of the lifting linkage rods 20 being connected with the rotating linkage rods 22 through the long pin shafts 21.

[0029] The brake action assembly comprises two brake seats 27 fixedly connected at the left side of the cargo platform brake mechanism fixed bases 8, inclined surfaces 271 formed at the side close to each other of the two brake seats 27, two fixed blocks 19 fixedly connected at the left side of the two brake seats 27, the rotating linkage rods 22 being fixed on the brake seats 27 through the fixed blocks 19, brake wheel shafts 23 rotatably connected to the inner wall of the two rotating linkage rods 22, brake wheels 24 fixedly connected to the outer wall of the two brake wheel shafts 23, X-direction lifting guide wheels 4 rotatably penetrating the two cargo platform brake mechanism fixed bases 8, the outer wall of the two X-direction lifting guide wheels 4 being respectively in contact with the two lifting guide rails 1, two Y-direction guide wheels 5 rotatably connected at the side away from each other of the two cargo platform brake mechanism fixed bases 8, the outer wall of the Y-direction guide wheels 5 being respectively in contact with the two lifting guide rails 1, the brake seats 27 being installed on the cargo platform brake mechanism fixed bases 8, the fixed blocks 19 being installed on the brake seats 27, and the bottom hole of the rotating linkage rods 22 being connected with the brake wheels 24 through the brake wheel shafts 23.

[0030] One specific application of the embodiment is: normal state, no brake effect: the steel wire cable 2 pulls the cargo platform upward through the cargo platform cable connecting structure 6, in this process, the cargo platform cable connecting structure 6 moves upward, the rectangular spring 12 is compressed, the spring interval sleeve 11 ensures that the spring will not be compressed too much, the linkage brake linkage rod 26 rotates counterclockwise around the brake linkage shaft 25, the brake wheel is at the lowest position and does not contact the guide rail, and there is no brake effect.

[0031] Abnormal state, brake effect: when the steel cable 2 is broken, the cargo platform cable connecting structure 6 moves downward under the action of the elastic force of the rectangular spring 12, the linkage brake connecting rod 26 rotates clockwise around the brake connecting rod shaft 25, the other end of the linkage brake connecting rod 26 links the lifting connecting rod 20 to move upward, the guide groove 17 ensures that the upward movement of the lifting connecting rod 20 will not be stuck, the brake wheel 24 at the bottom of the lifting connecting rod 20 moves upward along the upward inclined surface feature c of the brake seat 27, the relative movement of the two brake wheels 24 generates friction with the lifting guide rail 1, the brake wheel 24 is subjected to increased pressure from the brake seat 27 and the lifting guide rail 1, until the friction stops the cargo platform 3.

[0032] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the above disclosed utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A lifting anti-falling brake device, comprising a cargo platform (3), left and right sides of the cargo platform (3) are provided with lifting guide rails (1), and the upper side of the cargo platform (3) is provided with a plurality of steel wire ropes (2), characterized in that: The loading platform (3) is provided with a brake driving mechanism; The brake driving mechanism comprises a plurality of brake response assemblies, two brake linkage assemblies and two brake action assemblies. The brake response assembly comprises a loading platform cable connecting structure (6) arranged below the steel wire cable (2). A threaded feature (61) is formed in the outer wall of the loading platform cable connecting structure (6). The bottom of the steel wire cable (2) is wound around the roller of the loading platform cable connecting structure (6) and is fixed by a steel wire rope buckle. The top of the lifting guide rail (1) is fixedly connected with a loading platform connecting plane (7). The bottom of the loading platform cable connecting structure (6) extends into the loading platform connecting plane (7). A plurality of anti-collision washers (10) are slidably connected to the outer wall of the loading platform connecting plane (7). The two lower anti-collision washers (10) are located in the loading platform connecting plane (7), and the upper anti-collision washer (10) is located above the loading platform connecting plane (7).

2. The fall arrest device of claim 1, wherein, A spring spacing sleeve (11) is slidably connected to the outer wall of the loading platform cable connecting structure (6). The spring spacing sleeve (11) is located between the two lower anti-collision washers (10). A rectangular spring (12) is sleeved on the outer wall of the spring spacing sleeve (11). The loading platform cable connecting structure (6) is threadedly connected with two nuts (13) through the threaded feature (61). A toggle mechanism (14) is fixedly connected to the outer wall of the loading platform cable connecting structure (6).

3. The fall arrest device of claim 2, wherein, A lead screw end lock cover (15) is slidably connected to the outer wall of the loading platform cable connecting structure (6). A bolt (16) is threadedly connected to the bottom of the loading platform cable connecting structure (6). The top of the loading platform (3) is fixedly connected with a loading platform stand (9). A slot hole (91) is formed in the front side of the loading platform stand (9). The front side of the toggle mechanism (14) slides through the slot hole (91) and extends to the outer side.

4. The fall arrest device of claim 3, wherein, The brake linkage assembly comprises two loading platform brake mechanism fixed bases (8) fixedly connected to the top of the lifting guide rail (1). Two brake link shafts (25) are fixedly connected to the left side of the loading platform brake mechanism fixed base (8). A guide groove (17) is formed in the left side of the loading platform brake mechanism fixed base (8). The lifting guide rail (1) slides through the guide groove (17). A brake link (26) is fixedly connected to the outer wall of the two brake link shafts (25).

5. The fall arrest device of claim 4, wherein, The left side of the toggle mechanism (14) slides through the right end hole of the brake link (26) and is adapted to the right empty section of the brake link (26). A pin shaft (18) is fixedly connected to the inner wall of the left end hole of the brake link (26). A lifting link (20) is fixedly connected to the outer wall of the pin shaft (18). A long pin shaft (21) is fixedly connected to the bottom of the lifting link (20). Two rotary links (22) are fixedly connected to the bottom of the long pin shaft (21).

6. The fall arrest device of claim 5, wherein, The brake assembly comprises two brake seats (27) fixedly connected to the left side of the fixed bottom surface (8) of the loading platform brake mechanism, the side close to each other of the two brake seats (27) is provided with a slope (271), the left side of the two brake seats (27) is fixedly connected with two fixed blocks (19), the brake seat (27) is fixed with the rotary connecting rod (22) on the brake seat (27) through the fixed block (19), the inner wall of the two rotary connecting rods (22) is rotatably connected with the brake wheel shaft (23), and the outer wall of the two brake wheel shafts (23) is fixedly connected with the brake wheel (24).

7. The fall arrest device of claim 6, wherein, The X-direction lifting guide wheels (4) are rotatably penetrated on the two loading platform brake mechanism fixed bottom surfaces (8), the outer walls of the two X-direction lifting guide wheels (4) are respectively in contact with the two lifting guide rails (1), the two Y-direction guide wheels (5) are rotatably connected to the sides away from each other of the two loading platform brake mechanism fixed bottom surfaces (8), and the outer walls of the plurality of Y-direction guide wheels (5) are respectively in contact with the two lifting guide rails (1).

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