CN210478299U

CN210478299U - Fire-fighting robot walking tire quick detach mechanism

Info

Publication number: CN210478299U
Application number: CN201921297052.4U
Authority: CN
Inventors: 向朝华; 常建; 王亚辉; 常善强; 金常伟
Original assignee: Beijing Lingtian Intelligent Equipment Group Co Ltd
Current assignee: Beijing Lingtian Intelligent Equipment Group Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-05-08
Anticipated expiration: 2029-08-09

Abstract

The utility model belongs to the technical field of the fire-fighting robot technique and specifically relates to a fire-fighting robot walking tire quick detach mechanism is related to, including rotating drive shaft, the setting of connection on the chassis drive epaxial passive spring part and install in wheel hub one side and slidable cup joint in the drive shaft with passive spring part joint complex active part, the active part is improved level and is provided with through pressing down so that the active part with subassembly is advanced in passive spring part detached top, the subassembly runs through wheel hub is advanced in the top. The utility model has the advantages that make things convenient for the staff to install, dismantle and change the tire, improved work efficiency.

Description

Fire-fighting robot walking tire quick detach mechanism

Technical Field

The utility model belongs to the technical field of the fire-fighting robot technique and specifically relates to a fire-fighting robot walking tire quick detach mechanism is related to.

Background

The fire-fighting robot is one of special robots and plays a role in fighting fire and rescuing more and more. The fire-fighting robot can replace fire-fighting rescue personnel to enter dangerous disaster accident sites such as flammable and explosive, toxic, anoxic and dense smoke for data acquisition, processing and feedback, so the fire-fighting robot is widely applied to fires of various large petrochemical enterprises, tunnels, subways, oil gas, toxic gas leakage explosion, subway collapse and other places.

The existing fire-fighting robot mainly comprises a chassis, a traveling mechanism, a driving assembly, a water cannon fire-extinguishing device, a control system and the like, wherein the traveling mechanism is mostly a crawler belt or a tire, the crawler belt is made of iron, and friction sparks can be generated in the traveling process, so that the existing fire-fighting robot is not suitable for flammable and explosive places such as a gas station; and what the tire adopted mostly is the fire-resistant tire that has certain anti high temperature function, even so, if the time overlength of putting out a fire the rescue causes the tire to be close to the fire source for a long time, still can cause the damage to the tire, leads to the unable normal walking of fire-fighting robot, then at this moment, then needs the scene to dismantle and change the tire.

Because every tire all is fixed through a plurality of bolts, still need to use supporting instrument to realize moreover when the dismouting, therefore very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fire-fighting robot walking tire quick detach mechanism, its advantage makes things convenient for the staff to install, dismantle and change the tire, has improved work efficiency.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a fire-fighting robot walking tire quick detach mechanism, is in including rotating drive shaft, the setting of connection on the chassis drive epaxial passive spring part and install in wheel hub one side and slidable cup joint in the drive shaft with passive spring part joint complex active part, the active part is improved level and is provided with through pressing down so that the active part with passive spring part detached pushes away the subassembly, the subassembly runs through wheel hub in the top.

Through the technical scheme, when a worker installs the tire, the tire quick-release structure only needs to move the tire, and then the tire can be fixedly installed through clamping and matching of the driving part and the driven spring part; when the tire dismounting device is dismounted, the driving part and the driven spring part are separated only by pressing or pushing the jacking component, and then the tire is moved away, so that the tire can be dismounted and replaced quickly, and the working efficiency is greatly improved.

The utility model discloses further set up to: the passive spring part comprises a fixing ring and a plurality of notches which are arranged on the side wall of the fixing ring and are circumferentially distributed, one end of each notch is opened along the axis direction of the fixing ring, an elastic plate is formed between every two adjacent notches, and the outer side of each elastic plate is integrally connected with a clamping block which is outwards and convexly arranged;

a ring groove is formed in the outer wall of the driving shaft, the fixing ring is sleeved at the ring groove, and a movable gap is formed between the fixing ring and the ring groove;

the driving part comprises an inner hollow sleeve and two ends of the inner hollow sleeve are open, the two ends of the inner hollow sleeve are fixedly connected with a flange plate on the outer wall of the sleeve, the flange plate is arranged on one side of the hub, a small hole and a large hole which penetrate through the sleeve are sequentially formed in the sleeve along the axis direction, the inner diameter of the small hole is matched with the outer diameter of the driving shaft, and a step surface for clamping the clamping block is formed between the small hole and the large hole.

According to the technical scheme, during installation, the chassis is jacked up through hydraulic equipment, then the tire is lifted up, the opening of the sleeve is aligned to the driving shaft and is sleeved on the thin shaft of the driving shaft in a sliding mode, when the end portion of the sleeve is in contact with the driven spring part, the sleeve can slide along the slope of the clamping block, and due to the fact that the inner diameter of the small hole is matched with the outer diameter of the driving shaft, the elastic plate is pressed and moves close to the axis direction of the fixing ring in the sliding process until the driven spring part completely enters the small hole; when the clamping block passes through the small hole and enters the large hole, the elastic plate recovers deformation, at the moment, the vertical surface of the clamping block is clamped with the step surface, and the end, far away from the flange plate, of the sleeve is abutted against the step surface, so that installation is completed.

The utility model discloses further set up to: one side of the fixture block, which is far away from the inner wall of the fixing ring, is provided with a slope surface which is convenient for the passive spring part to extend into the sleeve.

Through above-mentioned technical scheme, domatic setting makes things convenient for the staff to install the initiative piece, makes the elastic plate draw close towards solid fixed ring's axis direction when the pressurized.

The utility model discloses further set up to: the outer wall of the driving shaft is provided with a first key groove extending along the axial direction of the driving shaft, the inner wall of the sleeve is provided with a second key groove extending along the axial direction of the sleeve, and a flat key for connecting the first key groove and the second key groove is arranged between the first key groove and the second key groove.

Through above-mentioned technical scheme, guarantee tire and drive shaft synchronous rotation, during the installation, earlier install the parallel key in first keyway, then aim at the second keyway, with the sleeve cup joint on the drive shaft can.

The utility model discloses further set up to: the fixed ring is an open ring.

Through above-mentioned technical scheme, make things convenient for the staff to install passive spring part, during the installation, will fix the ring and strut or break off with the fingers and thumb, then cup joint it in annular department can.

The utility model discloses further set up to: the movable clearance between the fixing ring and the annular groove is 2-3 mm.

Through the technical scheme, deformation allowance is provided for the elastic plate under the condition that the installation of the driving part is not influenced.

The utility model discloses further set up to: the jacking assembly comprises a threaded connection, the sleeve is close to an end plate and a sliding part of one end of the flange plate, the end plate and the sleeve are coaxially connected, a pressing rod and a fixedly connected pushing cylinder are arranged at one end of the pressing rod and slide in the large hole, the hollow part of the pushing cylinder is close to one end of the small hole and is open, and the inner wall of the opening is provided with a pushing rod, a slope surface is matched with the pressing rod to enable the clamping block to be in inner chamfering with a step surface separated.

Through the technical scheme, during the dismantlement, jack-up chassis through hydraulic equipment, the staff promotes the depression bar, make it drive the pusher towards the direction motion of fixture block in the macropore, when the interior chamfer and the domatic contact of pusher, it can be followed the domatic slip of fixture block, and make the elastic plate pressurized draw close towards solid fixed ring's axis direction, end and step face butt until the pusher, guarantee that passive spring part can get into in the micropore, at this moment, the staff is direct to the tire application of force, with it follow the drive epaxial pull down can, and is convenient, swiftly.

The utility model discloses further set up to: one end of the pressing rod, which is far away from the push cylinder, is in threaded connection with a positioning nut, a spring is sleeved on the pressing rod, and two ends of the spring are respectively abutted to the end plate and the positioning nut.

Through the technical scheme, the spring is arranged and used for elastically limiting the pressure rod, so that the situation that the push cylinder is contacted with the fixture block in a tire mounting state to cause the fixture block to be separated from the step surface is avoided; meanwhile, the push cylinder can be reset in the process of disassembling the tire.

The utility model discloses further set up to: and one side of the end plate, which is far away from the push cylinder, is provided with a plurality of mounting holes which are convenient to mount.

Through above-mentioned technical scheme, during the operation, insert the shaft-like instrument to the mounting hole, then rotate shaft-like instrument, make it drive end plate threaded connection in the sleeve and level with telescopic terminal surface.

To sum up, the utility model discloses a beneficial technological effect does:

1. according to the quick-release structure for the tire, when a worker installs the tire, the worker only needs to move the tire, and then the tire can be fixedly installed through clamping and matching of the driving part and the driven spring part; when the tire is disassembled, the driving part and the driven spring part are separated by pressing or pushing the jacking component, and then the tire is moved away, so that the rapid disassembly and replacement of the tire can be realized, and the working efficiency is greatly improved;

2. the slope is arranged, so that a worker can conveniently install the driving part, and the elastic plate is close to the axis direction of the fixing ring when being pressed;

3. the spring is arranged and used for elastically limiting the pressure rod, so that the situation that the push cylinder is contacted with the fixture block in the tire mounting state to cause the fixture block to be separated from the step surface is avoided; meanwhile, the push cylinder can be reset in the process of disassembling the tire.

Drawings

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

FIG. 2 is a schematic diagram showing the position of the jacking assembly;

FIG. 3 is a schematic structural view showing a passive spring member;

FIG. 4 is a schematic view of a configuration embodying the location of the ring groove and the first keyway;

FIG. 5 is a sectional view showing the structure and connection relationship of the driving member and the jacking assembly;

FIG. 6 is a sectional view showing a mounted state of a tire;

fig. 7 is an enlarged schematic view of the point a in fig. 6.

In the figure, 1, a drive shaft; 11. a ring groove; 12. a first keyway; 2. a passive spring member; 21. a fixing ring; 22. a notch; 23. an elastic plate; 24. a clamping block; 25. a slope surface; 3. a hub; 4. a driving member; 41. a sleeve; 42. a flange plate; 43. a small hole; 44. macropores; 45. a step surface; 46. a second keyway; 5. a jacking assembly; 51. an end plate; 511. mounting holes; 52. a pressure lever; 53. a push cylinder; 54. inner chamfering; 55. positioning a nut; 56. a spring; 6. a tire; 7. a flat bond.

Detailed Description

Referring to fig. 1 and 2, for the utility model discloses a fire-fighting robot walking tire quick detach mechanism, including rotate drive shaft 1, the setting on the chassis of connection driven spring part 2 and install the initiative 4 in wheel hub 3 one side, 4 slidable of initiative cup joint in drive shaft 1 and with the cooperation of 2 joints of driven spring part to the realization is to the fixed mounting of tire 6. The driving part 4 is horizontally provided with a jacking assembly 5 which penetrates through the hub 3, and a worker can press or push the jacking assembly 5 to separate the driving part 4 from the driven spring part 2, so that the tire 6 can be rapidly disassembled.

Referring to fig. 3, passive spring part 2 is high manganese steel material, and it has higher wearability and better flexibility, is applied to and can improves passive spring part 2's life greatly in this application. Passive spring part 2 is including solid fixed ring 21, and set up on solid fixed ring 21 lateral wall and be a plurality of breachs 22 that the circumference distributes, the one end of breach 22 is opened along solid fixed ring 21's axis direction, form elastic plate 23 between the adjacent breach 22, there is fixture block 24 that outside protruding was established in the outside (the one side of keeping away from the axis) homogeneous body connection of every elastic plate 23, it is right trapezoid along the cross-section of solid fixed ring 21 axis direction, its inclined plane sets up the one side of keeping away from solid fixed ring 21 inner wall at fixture block 24, for convenient the differentiation, denominate it as domatic 25, domatic 25's setting, make things convenient for the staff to install initiative piece 4.

Referring to fig. 3 and 4, the driving shaft 1 is a stepped shaft, a ring groove 11 is formed in a thin shaft of the driving shaft 1, the fixing ring 21 is sleeved at the ring groove 11, and a movable gap of 2-3mm is formed between the fixing ring 21 and the ring groove 11, so that deformation allowance is provided for the elastic plate 23 without affecting the installation of the driving part 4. In order to facilitate installation of the passive spring part 2 by workers, the fixing ring 21 is set to be an open ring, and during installation, the fixing ring 21 is unfolded or broken off and then sleeved on the annular groove 11.

Referring to fig. 5, the driving member 4 includes a hollow sleeve 41 with two open ends and a flange 42 fixedly connected to the outer wall of the sleeve 41, the driving member 4 is fixed to one side of the hub 3 through the flange 42, a small hole 43 and a large hole 44 penetrating through the sleeve 41 are sequentially formed in the sleeve 41 along the axial direction, the large hole 44 is close to one side of the flange 42, a stepped hole is formed between the small hole 43 and the large hole 44, a stepped surface 45 for clamping the clamping block 24 is formed at the joint of the small hole 43 and the large hole 44, and the inner diameter of the small hole 43 is matched with the outer diameter of the driving shaft 1.

Referring to fig. 6 and 7, during installation, the chassis is jacked up by a hydraulic device, then the tire 6 is lifted up, the opening of the sleeve 41 is aligned with the driving shaft 1 and is sleeved on the thin shaft of the driving shaft 1 in a sliding manner, when the end part of the sleeve 41 is contacted with the driven spring part 2, the sleeve can slide along the slope 25 of the fixture block 24, and as the inner diameter of the small hole 43 is matched with the outer diameter of the driving shaft 1, the elastic plate 23 is pressed and drawn close to the axial direction of the fixing ring 21 in the sliding process until the driven spring part 2 completely enters the small hole 43; when the fixture block 24 passes through the small hole 43 and enters the large hole 44, the elastic plate 23 is restored to deform, at this time, the vertical surface of the fixture block 24 is clamped with the step surface 45, and the end, away from the tire 6, of the sleeve 41 is abutted against the shaft shoulder of the driving shaft 1, so that the installation is completed.

Referring to fig. 1 and 4, in order to ensure that the tire 6 and the driving shaft 1 rotate synchronously, a first key groove 12 extending along the axial direction is formed in the outer wall of the thin shaft of the driving shaft 1, a second key groove 46 extending along the axial direction is formed in the inner wall of the sleeve 41, a flat key 7 connecting the first key groove 12 and the second key groove 46 is arranged between the first key groove 12 and the second key groove 46, and during installation, the flat key 7 is firstly installed in the first key groove 12, then the second key groove 46 is aligned, and the sleeve 41 is sleeved on the driving shaft 1.

Referring to fig. 6 and 7, the pushing assembly 5 includes an end plate 51 screwed into the end of the sleeve 41 close to the flange 42, a pressing rod 52 passing through the end plate 51 in a sliding manner and disposed coaxially with the sleeve 41, and a pushing cylinder 53 fixed to one end of the pressing rod 52 and sliding in the large hole 44, wherein the pushing cylinder 53 is hollow and has an open end close to the small hole 43, and an inner wall of the open end is provided with an inner chamfer 54 capable of cooperating with the slope 25 when the pressing rod 52 is pushed to separate the latch 24 from the step surface 45, so as to facilitate a worker to rotatably mount the end plate 51, a plurality of mounting holes 511 are formed in one side of the end plate 51 away from the pushing cylinder 53, and during operation, a rod-shaped tool is inserted into the mounting holes 511, and then the rod-shaped tool is rotated to drive the end plate 51 to be screwed into the sleeve 41 and flush with the end surface of the sleeve.

During the dismantlement, jack up the chassis through hydraulic equipment, the staff promotes depression bar 52, make it drive push cylinder 53 move towards fixture block 24's direction in macropore 44, when push cylinder 53's interior chamfer 54 contacts with domatic 25, it can slide along domatic 25 of fixture block 24, and make elastic plate 23 pressurized draw close towards the axis direction of solid fixed ring 21, until push cylinder 53's tip and step face 45 butt, guarantee that passive spring part 2 can get into in the aperture 43, at this moment, the staff directly to tire 6 application of force, it can to pull down it from drive shaft 1, and is convenient, swift.

In order to avoid the situation that the push cylinder 53 is in contact with the clamping block 24 in the installation state of the tire 6 and the clamping block 24 is separated from the step surface 45, one end of the pressing rod 52 far away from the push cylinder 53 is in threaded connection with a positioning nut 55, the pressing rod 52 is sleeved with a spring 56, two ends of the spring 56 are respectively abutted to the end plate 51 and the positioning nut 55 by adjusting the positioning nut 55, and the spring 56 is arranged and used for elastically limiting the pressing rod 52 and can reset the push cylinder 53 in the process of disassembling the tire 6.

Compared with the mode of bolt fixing in the prior art, the tire quick-release structure in the application enables workers to carry the tire 6 during installation and then realize the fixed installation of the tire 6 through the clamping and matching of the driving part 4 and the driven spring part 2; during the dismantlement, only need make driving part 4 and passive spring part 2 throw off through pressing or promoting jacking subassembly 5, realize dismantling tire 6 fast, then as required, change new tire 6 can, improved work efficiency greatly.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a fire-fighting robot walking tire quick detach mechanism which characterized in that: connect drive shaft (1) on the chassis, set up passive spring part (2) on drive shaft (1) and install in wheel hub (3) one side and slidable cup joint on drive shaft (1) with passive spring part (2) joint complex initiative piece (4), the level is provided with through pressing so that initiative piece (4) with subassembly (5) is advanced in the top that passive spring part (2) throw off, subassembly (5) is advanced in the top runs through wheel hub (3).

2. The fire-fighting robot walking tire quick-release mechanism according to claim 1, characterized in that: the passive spring part (2) comprises a fixing ring (21) and a plurality of notches (22) which are arranged on the side wall of the fixing ring (21) and are circumferentially distributed, one end of each notch (22) is opened along the axial direction of the fixing ring (21), an elastic plate (23) is formed between every two adjacent notches (22), and the outer side of each elastic plate (23) is integrally connected with a clamping block (24) which is outwards protruded;

a ring groove (11) is formed in the outer wall of the driving shaft (1), the fixing ring (21) is sleeved at the ring groove (11), and a movable gap is formed between the fixing ring (21) and the ring groove (11);

drive spare (4) are open sleeve (41) and rigid coupling including inside cavity and both ends and are in flange dish (42) on sleeve (41) outer wall, one side at wheel hub (3) is installed in flange dish (42), seted up in proper order along the axis direction in sleeve (41) and run through aperture (43) and macropore (44) of sleeve (41), the internal diameter of aperture (43) with the external diameter looks adaptation of drive shaft (1), aperture (43) with form the confession between macropore (44) step face (45) of fixture block (24) joint.

3. The fire-fighting robot walking tire quick-release mechanism according to claim 2, characterized in that: one side of the clamping block (24) far away from the inner wall of the fixing ring (21) is provided with a slope surface (25) which is convenient for the passive spring part (2) to extend into the sleeve (41).

4. The fire-fighting robot walking tire quick-release mechanism according to claim 2, characterized in that: the outer wall of the driving shaft (1) is provided with a first key groove (12) extending along the axial direction of the driving shaft, the inner wall of the sleeve (41) is provided with a second key groove (46) extending along the axial direction of the sleeve, and a flat key (7) for connecting the first key groove (12) and the second key groove (46) is arranged between the first key groove and the second key groove.

5. The fire-fighting robot walking tire quick-release mechanism according to claim 2, characterized in that: the driving shaft (1) is a stepped shaft, and one end, far away from the tire (6), of the sleeve (41) is abutted to a shaft shoulder of the driving shaft (1).

6. The fire-fighting robot walking tire quick-release mechanism according to claim 2, characterized in that: the fixing ring (21) is an open ring.

7. The fire-fighting robot walking tire quick-release mechanism according to claim 2, characterized in that: the movable gap between the fixing ring (21) and the annular groove (11) is 2-3 mm.

8. The fire-fighting robot walking tire quick-release mechanism according to claim 3, characterized in that: jacking subassembly (5) are including threaded connection sleeve (41) are close to end plate (51), the slip of ring flange (42) one end pass end plate (51) and with depression bar (52) and the rigid coupling that sleeve (41) coaxial line set up are in depression bar (52) one end and slide in push away section of thick bamboo (53) in macropore (44), the inside cavity of push away section of thick bamboo (53) just is close to the one end of aperture (43) is uncovered, and the inner wall of this uncovered department is equipped with and promotes during depression bar (52) with domatic (25) cooperation is so that fixture block (24) with interior chamfer (54) of step face (45) separation.

9. The fire-fighting robot walking tire quick-release mechanism according to claim 8, characterized in that: one end, far away from the push cylinder (53), of the pressing rod (52) is connected with a positioning nut (55) in a threaded mode, a spring (56) is sleeved on the pressing rod (52), and two ends of the spring (56) are respectively abutted to the end plate (51) and the positioning nut (55).

10. The fire-fighting robot walking tire quick-release mechanism according to claim 8, characterized in that: and a plurality of mounting holes (511) convenient to mount are formed in one side of the end plate (51) far away from the push cylinder (53).