CN212687449U

CN212687449U - Crane fault detection device

Info

Publication number: CN212687449U
Application number: CN202021438640.8U
Authority: CN
Inventors: 毛祖兴; 许华; 袁明敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-18
Filing date: 2020-07-18
Publication date: 2021-03-12
Anticipated expiration: 2030-07-18

Abstract

The utility model provides a crane fault inspection device, which comprises a portal frame, wherein the portal frame is connected with an inspection bench through a lifting driving mechanism, two sides of the inspection bench are provided with brackets, each bracket is rotatably connected with a positioning gear through a rotating shaft, and the portal frame is provided with positioning racks which are matched with the positioning gears one by one along the vertical direction; the two sides of the inspection bench are connected with limit racks which are matched with the positioning gears one by one through telescopic components, and limit fixing components connected with the limit racks are arranged on the inspection bench; the utility model discloses simple structure, compactness can fix a position fixedly to the checkout stand, prevent that the checkout stand from removing, stable in structure, the security is higher.

Description

Crane fault detection device

Technical Field

The utility model relates to a verifying attachment specifically is a hoist trouble verifying attachment.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. The hoisting equipment has the working characteristics of intermittent movement, namely corresponding mechanisms for taking materials, transporting, unloading and the like in one working cycle alternately work, so that the development and the use of the crane on the market are more and more extensive.

When the hoist breaks down, need the staff to inspect the maintenance, for the convenience inspects the hoist, most checkout platforms have elevation structure. However, after the lifting, the inspection bench is difficult to position and fix, the structural stability is poor, and the potential safety hazard is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hoist fault inspection device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a crane fault detection device comprises a portal frame, wherein the portal frame is connected with a detection table through a lifting driving mechanism, supports are arranged on two sides of the detection table, positioning gears are rotatably connected to the supports through rotating shafts, and positioning racks matched with the positioning gears one by one are arranged on the portal frame in the vertical direction;

the two sides of the inspection bench are connected with limiting racks which are matched with the positioning gears one by one through telescopic assemblies, and limiting fixing assemblies connected with the limiting racks are arranged on the inspection bench.

As a further aspect of the present invention: the lifting driving mechanism comprises nuts which are arranged on the inspection table in parallel at intervals, and the portal frame is rotatably connected with screw rods which are matched with the nuts one by one through bearings and shaft seats in a matched manner; each screw rod is arranged along the vertical direction, and a driving assembly which is connected with each screw rod in a linkage manner is arranged at the top of the door-shaped frame.

As a further aspect of the present invention: the driving assembly is composed of a servo motor arranged at the top of the door-shaped frame, a first chain wheel arranged at the output end of the servo motor and a second chain wheel arranged at the upper end of each screw rod and connected with the first chain wheel in a linkage mode through a chain.

As a further aspect of the present invention: the inspection table is a groove body with an open upper end, through holes are formed in two sides of the groove body, and fixed end covers are arranged on the inner wall of the groove body at the periphery of each through hole;

the fixed end cover is matched with the through hole to form a containing groove matched with the limiting rack, the telescopic assembly is arranged in the containing groove, and the limiting fixed assembly is arranged on the fixed end cover.

As a further aspect of the present invention: the telescopic assembly comprises a plurality of telescopic rods which are arranged between the limiting rack and the fixed end cover in parallel at intervals, and telescopic springs are sleeved on the telescopic rods.

As a further aspect of the present invention: the limiting fixing component comprises a connecting rod arranged on the limiting rack, a fixing sleeve corresponding to the connecting rod is arranged on the fixing end cover, and the connecting rod movably penetrates through the fixing sleeve along the horizontal direction; the fixing sleeve is provided with a fixing pin along the radial direction, and the connecting rod is provided with a first fixing hole and a second fixing hole which are matched with the fixing pin;

when the connecting rod is connected with the fixed sleeve through the matching of the first fixing hole and the fixing pin, the limiting rack limits the positioning gear; when the connecting rod is connected with the fixed sleeve through the matching of the second fixing hole and the fixing pin, the limiting rack is positioned in the accommodating groove.

Compared with the prior art, the beneficial effects of the utility model are that:

by adopting the structure, the utility model has the advantages that through the mutual matching of the positioning gear, the positioning rack, the limiting rack and the limiting fixing component, when the inspection bench is lifted, the positioning gear can rotate along the length direction of the positioning rack; when the checkout stand moved to the assigned position, through the cooperation of spacing fixed subassembly and spacing rack, carried on spacingly to the positioning gear can't rotate along the positioning rack, and then through mutually supporting of positioning gear, positioning rack and spacing rack, fixed a position the checkout stand, prevented that the checkout stand from removing, stable in structure, the security is higher. Furthermore, through the telescopic assembly, the limiting rack can stretch out and draw back, the positioning is convenient, meanwhile, the limiting rack can be guided, and the limiting rack can only horizontally move, so that the structure is simple, and the use is convenient. The utility model discloses simple structure, compactness can fix a position fixedly to the checkout stand, prevent that the checkout stand from removing, stable in structure, the security is higher.

Drawings

Fig. 1 is a schematic structural diagram of a crane fault checking device.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

In the figure: 1. a gate frame; 2. a lifting drive mechanism; 201. a nut; 202. a screw rod; 203. a drive assembly; 204. a servo motor; 205. a first sprocket; 206. a second sprocket; 3. an inspection bench; 4. a support; 5. positioning a gear; 6. positioning the rack; 7. a telescoping assembly; 701. a telescopic rod; 702. a tension spring; 8. a limit rack; 9. a limiting and fixing component; 901. a connecting rod; 902. fixing a sleeve; 903. a fixing pin; 904. a first fixing hole; 905. a second fixing hole; 10. a through hole; 11. and fixing the end cover.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, a crane fault detection device comprises a portal frame 1, wherein the portal frame 1 is connected with a detection table 3 through a lifting driving mechanism 2, two sides of the detection table 3 are provided with supports 4, each support 4 is rotatably connected with a positioning gear 5 through a rotating shaft, and the portal frame 1 is provided with positioning racks 6 which are matched with the positioning gears 5 one by one along the vertical direction; the two sides of the inspection bench 3 are connected with limiting racks 8 matched with the positioning gears 5 one by one through telescopic assemblies 7, and the inspection bench 3 is provided with limiting fixing assemblies 9 connected with the limiting racks 8. Through the mutual matching of the positioning gear 5, the positioning rack 6, the limiting rack 8 and the limiting fixing component 9, when the inspection bench 3 is lifted, the positioning gear 5 can rotate along the length direction of the positioning rack 6; when the test bench 3 moves to the assigned position, through spacing fixed subassembly 9 and spacing rack 8's cooperation, carry on spacingly to positioning gear 5 can't rotate along positioning rack 6, and then mutually support through positioning gear 5, positioning rack 6 and spacing rack 8, fix a position fixedly to test bench 3, prevent that test bench 3 from removing, stable in structure, the security is higher.

The lifting driving mechanism 2 comprises nuts 201 which are arranged on the inspection table 3 in parallel at intervals, and lead screws 202 which are matched with the nuts 201 one by one are rotatably connected to the portal frame 1 through matching of bearings and shaft seats; each screw 202 is arranged along the vertical direction, and a driving assembly 203 which is linked with each screw 202 is arranged at the top of the door-shaped frame 1. Specifically, the driving assembly 203 comprises a servo motor 204 disposed on the top of the gantry 1, a first sprocket 205 disposed at the output end of the servo motor 204, and a second sprocket 206 disposed at the upper end of each screw rod 202 and linked with the first sprocket 205 via a chain. Through the mutual cooperation of each part, can drive checkout stand 3 and reciprocate and go up and down, compact structure, convenient to use.

Specifically, the inspection platform 3 is a groove body with an opening at the upper end, so that a worker can conveniently stand into the groove body to inspect the crane, through holes 10 are formed in two sides of the groove body, and a fixed end cover 11 is arranged on the inner wall of the groove body at the periphery of each through hole 10; the fixed end cover 11 and the through hole 10 are matched to form a containing groove matched with the limiting rack 8, the telescopic assembly 7 is arranged in the containing groove, and the limiting fixed assembly 9 is arranged on the fixed end cover 11. By providing a receiving channel and securing the end cap 11, support and mounting space for other components in the device is provided.

Further, the telescopic assembly 7 comprises a plurality of telescopic rods 701 which are arranged between the limiting rack 8 and the fixed end cover 11 in parallel at intervals, and a telescopic spring 702 is sleeved on each telescopic rod 701. Through the flexible subassembly 7 that sets up, can make spacing rack 8 stretch out and draw back, convenient location, simultaneously, can lead to spacing rack 8, make spacing rack 8 horizontal migration only, simple structure, convenient to use.

Further, the limiting fixing component 9 comprises a connecting rod 901 arranged on the limiting rack 8, a fixing sleeve 902 corresponding to the connecting rod 901 is arranged on the fixing end cover 11, and the connecting rod 901 movably penetrates through the fixing sleeve 902 along the horizontal direction; a fixing pin 903 is arranged on the fixing sleeve 902 along the radial direction, and a first fixing hole 904 and a second fixing hole 905 which are matched with the fixing pin 903 are arranged on the connecting rod 901; when the connecting rod 901 is connected with the fixing sleeve 902 through the matching of the first fixing hole 904 and the fixing pin 903, the limiting rack 8 limits the positioning gear 5; when the connecting rod 901 is connected with the fixing sleeve 902 through the matching of the second fixing hole 905 and the fixing pin 903, the limit rack 8 is located in the receiving groove.

In this embodiment, it should be noted that the servo motor 204 adopted in the present application is a prior art, and therefore, the connection relationship and principle thereof are not described herein again.

The utility model discloses a theory of operation is: during the use, the staff stands on checkout stand 3, and connecting rod 901 is connected with fixed cover 902 through the cooperation of second fixed orifices 905 and fixed pin 903, and spacing rack 8 is located and accomodates the inslot this moment, then starts lift actuating mechanism 2 and drives checkout stand 3 and reciprocate, and when checkout stand 3 goes up and down, location gear 5 can rotate along the length direction of location rack 6.

When the inspection bench 3 moves to a specified position, the connecting rod 901 is connected with the fixing sleeve 902 through the matching of the first fixing hole 904 and the fixing pin 903, and then the inspection bench 3 is positioned and fixed through the mutual matching of the positioning gear 5, the positioning rack 6 and the limiting rack 8, so that the inspection bench 3 is prevented from moving.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A crane fault detection device comprises a portal frame (1), and is characterized in that the portal frame (1) is connected with a detection table (3) through a lifting driving mechanism (2), supports (4) are arranged on two sides of the detection table (3), positioning gears (5) are rotatably connected on the supports (4) through rotating shafts, and positioning racks (6) matched with the positioning gears (5) one by one are arranged on the portal frame (1) along the vertical direction;

the two sides of the inspection bench (3) are connected with limiting racks (8) matched with the positioning gears (5) one by one through telescopic assemblies (7), and limiting fixing assemblies (9) connected with the limiting racks (8) are arranged on the inspection bench (3).

2. The crane fault detection device according to claim 1, wherein the lifting driving mechanism (2) comprises nuts (201) arranged on the detection table (3) in parallel and at intervals, and screw rods (202) matched with the nuts (201) one by one are rotatably connected to the portal frame (1) through matching of bearings and shaft seats; each screw rod (202) is arranged along the vertical direction, and a driving assembly (203) which is in linkage connection with each screw rod (202) is arranged at the top of the door-shaped frame (1).

3. The crane fault detection device as claimed in claim 2, wherein the driving assembly (203) comprises a servo motor (204) arranged at the top of the gantry (1), a first chain wheel (205) arranged at the output end of the servo motor (204), and a second chain wheel (206) arranged at the upper end of each screw rod (202) and connected with the first chain wheel (205) in a linkage manner through a chain.

4. The crane fault detection device according to claim 1, wherein the inspection table (3) is a groove body with an open upper end, through holes (10) are formed in two sides of the groove body, and a fixed end cover (11) is arranged on the inner wall of the groove body at the periphery of each through hole (10);

fixed end cover (11) cooperate with through-hole (10) to constitute the groove of accomodating that suits with spacing rack (8), flexible subassembly (7) set up and accomodate the inslot, spacing fixed subassembly (9) set up on fixed end cover (11).

5. The crane fault detection device according to claim 4, characterized in that the telescopic assembly (7) comprises a plurality of telescopic rods (701) which are arranged in parallel and at intervals between the limit rack (8) and the fixed end cover (11), and a telescopic spring (702) is sleeved on each telescopic rod (701).

6. The crane fault detection device according to claim 4, wherein the limiting and fixing assembly (9) comprises a connecting rod (901) arranged on the limiting rack (8), a fixing sleeve (902) corresponding to the connecting rod (901) is arranged on the fixing end cover (11), and the connecting rod (901) passes through the fixing sleeve (902) in a horizontal direction; a fixing pin (903) is arranged on the fixing sleeve (902) along the radial direction, and a first fixing hole (904) and a second fixing hole (905) which are matched with the fixing pin (903) are arranged on the connecting rod (901);

when the connecting rod (901) is connected with the fixed sleeve (902) through the matching of the first fixing hole (904) and the fixing pin (903), the limiting rack (8) limits the positioning gear (5); when the connecting rod (901) is connected with the fixed sleeve (902) through the matching of the second fixing hole (905) and the fixing pin (903), the limiting rack (8) is positioned in the accommodating groove.