Left-right travelling mechanism of travelling crane

Abstract

The utility model discloses a left-right travelling mechanism of a travelling crane, which comprises a guide frame and a U-shaped frame, and guide rails are arranged on two sides of the guide frame; a soft start brake motor is mounted on one side of the U-shaped frame, the output end of the soft start brake motor penetrates through the U-shaped frame and is provided with a moving structure, and four mounting plates and four fixing rods are symmetrically mounted on the U-shaped frame; according to the utility model, a full-pressure direct starting motor of the trolley walking mechanism is changed into a soft starting braking motor, so that the severe slipping abrasion of materials during starting or braking can be reduced, the guide rail wheels of the left and right walking trolleys of the travelling crane are made of wear-resistant nylon materials instead of steel materials, and nylon has excellent wear resistance, self-lubricating property and elasticity; the guide rail wheel can better adapt to the surface appearance of the guide rail in the friction process of the guide rail wheel and the guide rail, friction force and abrasion are reduced, the amount of iron powder generated due to friction is reduced, and therefore the rail gnawing phenomenon caused by extrusion between the rim and the steel rail due to excessive iron powder is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a left-right walking mechanism of a crane. Background Art

[0002] The left and right traveling mechanism of the crane is an important component of the crane hoisting machinery, and is mainly used to realize the movement and positioning of the crane.

[0003] The existing left and right traveling mechanisms of the crane generally use steel wheels and full-pressure direct-start motors. The steel left and right traveling small wheels can ensure sufficient strength, and the full-pressure direct-start motor can provide sufficient power.

[0004] In the existing technology, since the left and right traveling trolleys of the crane are mostly driven by full-voltage direct starting motors, severe friction will be caused between the steel wheels and the rails during startup, causing slipping, which will not only generate a large amount of iron powder, but also cause serious wear of the wheels and rails. Moreover, under normal operation, the steel wheels will rub against the rails on the main beam when rotating, and the rigid friction will easily generate iron powder. Over time, the iron powder will accumulate and easily cause quality problems such as damage and rail gnawing. Therefore, a left and right traveling mechanism for the crane is needed to meet people's needs. Utility Model Content

[0005] The purpose of the present utility model is to provide a left and right walking mechanism for a vehicle to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a left and right traveling mechanism of a traveling crane, comprising a guide frame and a U-shaped frame, guide rails are provided on both sides of the guide frame; a soft start brake motor is installed on one side of the U-shaped frame, the output end of the soft start brake motor passes through the U-shaped frame and is installed with a moving structure, four mounting plates and four fixed rods are symmetrically installed on the U-shaped frame, dust removal structures are installed on the four mounting plates, and cleaning structures are installed on the four fixed rods.

[0007] Preferably, the movable structure includes a driving gear, which is installed on the output end of the soft start brake motor. Two driven gears are rotatably installed inside both sides of the U-shaped frame. The driving gear is engaged with the corresponding two driven gears. The two driven gears on the same side are close to each other and are equipped with guide wheels. The four guide wheels are movably installed above the two guide rails.

[0008] Preferably, the guide wheel is made of wear-resistant nylon.

[0009] Preferably, the dust removal structure includes a guide box, which is mounted on a mounting plate. An air outlet nozzle is mounted on the guide box, which is communicated with the guide box. A speed increaser is mounted on one side of the guide box, and a linkage gear is mounted on the input end of the speed increaser. The linkage gear is engaged with the driven gear. The output end of the speed increaser passes through the guide box and is equipped with fan blades. The fan blades are located inside the guide box, and a number of ventilation holes are provided on the guide box.

[0010] Preferably, the air outlet nozzle is arranged at an angle, and the air outlet of the air outlet nozzle faces upwards of the guide rail.

[0011] Preferably, the cleaning structure includes a sliding rod, which is slidably mounted on one side of the fixed rod, and bristles are mounted below the sliding rod, the bristles are in contact with the top of the guide rail, and a connecting block is mounted on one side of the sliding rod, and one end of the connecting rod is rotatably mounted on the connecting block, and the other end of the connecting rod is rotatably mounted on one side of the linkage gear.

[0012] Preferably, linkage shafts are rotatably mounted inside both ends of the connecting rod, and the two linkage shafts are respectively mounted on one side of the linkage gear and the connecting block.

[0013] Preferably, a guide slot is provided inside the fixing rod, a guide slider is slidably installed in the guide slot, and the guide slider is installed on one side of the sliding rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The utility model can reduce the severe slipping and wear of the material during starting or braking by changing the full-voltage direct starting motor of the trolley travel mechanism to a soft-start braking motor, and the guide wheels of the left and right trolleys are changed from steel to wear-resistant nylon. Nylon has excellent wear resistance, self-lubrication and elasticity, so that the guide wheels can better adapt to the surface morphology of the guide rails during the friction with the guide rails, reduce friction and wear, and reduce the amount of iron powder generated by friction, thereby avoiding the phenomenon of rail gnawing caused by the compression of the wheel rim and the steel rails due to excessive iron powder.

[0016] (2) The left and right trolley can drive the fan blades to rotate in cooperation with the driven gear and the linkage gear during the movement. The rotating fan blades can use the air outlet nozzle to blow air toward the top of the guide rail, blowing away the dust and impurities attached to the guide rail, preventing the guide wheel from pressing on the impurities when rolling and causing surface damage, thereby improving the service life of the guide wheel.

[0017] (3) When the linkage gear rotates, the connecting rod can drive the brush to move back and forth on the guide rail to prevent dust and debris from adhering to the guide rail. In combination with the blowing of air flow, the cleaning effect of the guide rail can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the left and right walking mechanism of a vehicle proposed in the utility model;

[0019] Figure 2 This is a schematic diagram of the guide wheel structure of the left and right traveling mechanism of a traveling vehicle proposed in the utility model;

[0020] Figure 3 This is a schematic diagram of the fixed rod connection structure of the left and right traveling mechanism of a vehicle proposed in the utility model;

[0021] Figure 4 This is a schematic diagram of the linkage gear structure of the left and right traveling mechanism of a crane proposed in the utility model;

[0022] Figure 5 This is a schematic cross-sectional view of the structure of a guide box of a left and right traveling mechanism of a traveling vehicle proposed by the present invention.

[0023] In the figure: 100, guide frame; 101, guide rail; 200, U-shaped frame; 201, soft start brake motor; 202, driving gear; 203, driven gear; 204, guide wheel; 300, mounting plate; 301, deflector box; 302, air outlet nozzle; 303, speed increaser; 304, linkage gear; 305, fan blade; 306, ventilation hole; 400, fixing rod; 401, sliding rod; 402, bristles; 403, connecting block; 404, connecting rod; 405, linkage shaft; 406, guide slide; 407, guide slider. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-5 The utility model provides a technical solution: a left and right walking mechanism of a crane, comprising a guide frame 100 and a U-shaped frame 200, guide rails 101 are provided on both sides of the guide frame 100; a soft start brake motor 201 is installed on one side of the U-shaped frame 200, the output end of the soft start brake motor 201 passes through the U-shaped frame 200 and is installed with a moving structure, four mounting plates 300 and four fixed rods 400 are symmetrically installed on the U-shaped frame 200, dust removal structures are installed on the four mounting plates 300, the dust removal structures are used to blow away dust and impurities on the guide rails 101, and cleaning structures are installed on the four fixed rods 400, the cleaning structures are used to clean dust and debris adhering to the top of the guide rails 101.

[0026] Furthermore, the moving structure includes a driving gear 202, which is installed on the output end of the soft start brake motor 201. Two driven gears 203 are rotatably installed inside both sides of the U-shaped frame 200. The driving gear 202 is engaged with the corresponding two driven gears 203. The two driven gears 203 on the same side are close to each other and are each installed with a guide wheel 204. The four guide wheels 204 are movably installed above the two guide rails 101. When the soft start brake motor 201 is turned on, the driving gear 202 is driven to rotate. When the driving gear 202 rotates, it drives the two driven gears 203 to rotate in the same direction by engaging with the driven gears 203 on both sides, thereby causing the driven gear 203 to drive the guide wheel 204 to roll above the guide rail 101.

[0027] Furthermore, the guide wheel 204 is made of wear-resistant nylon. By using the wear-resistant nylon material for the guide wheel 204 , the amount of iron powder generated by friction with the guide rail 101 can be reduced.

[0028] Furthermore, the dust removal structure includes a guide box 301, which is mounted on the mounting plate 300, and an air outlet nozzle 302 is mounted on the guide box 301, and the air outlet nozzle 302 is connected to the guide box 301. A speed increaser 303 is mounted on one side of the guide box 301, and a linkage gear 304 is mounted on the input end of the speed increaser 303. The linkage gear 304 is meshed with the driven gear 203, and the output end of the speed increaser 303 passes through the guide box 301 and is equipped with a fan blade 305. The fan blade 305 is located at Inside the guide box 301, a number of ventilation holes 306 are provided on the guide box 301. When the driven gear 203 rotates, it can drive the linkage gear 304 to rotate, so that the linkage gear 304 drives the input shaft of the speed increaser 303 to rotate, and then the output shaft of the speed increaser 303 drives the fan blades 305 to rotate inside the guide box 301. When the fan blades 305 rotate, they can blow airflow, so that the airflow is blown from the air outlet nozzle 302 to the top of the guide rail 101, and the impurities and dust attached to the guide rail 101 are blown away.

[0029] Furthermore, the air outlet nozzle 302 is tilted, and the air outlet of the air outlet nozzle 302 faces upwards of the guide rail 101 . The air outlet nozzle 302 is used to guide the direction of the airflow blown when the fan blades 305 rotate.

[0030] Example 2: Figure 3-5In order to further improve the cleaning effect of the guide rail 101, a cleaning structure is arranged on the fixed rod 400, wherein the cleaning structure includes a sliding rod 401, the sliding rod 401 is slidably installed on one side of the fixed rod 400, and a brush 402 is installed below the sliding rod 401, and the brush 402 contacts the upper part of the guide rail 101, and a connecting block 403 is installed on one side of the sliding rod 401, and one end of the connecting rod 404 is rotatably installed on the connecting block 403, and the other end of the connecting rod 404 is rotatably installed on one side of the linkage gear 304, and linkage shafts 405 are rotatably installed inside both ends of the connecting rod 404. The two linkage shafts 405 They are respectively installed on one side of the linkage gear 304 and the connecting block 403. A guide groove 406 is provided inside the fixed rod 400, and a guide slider 407 is slidably installed in the guide groove 406. The guide slider 407 is installed on one side of the sliding rod 401. The rotating linkage gear 304 can drive one end of the connecting rod 404 to move in a circle through the linkage shaft 405, and the other end of the connecting rod 404 drives the connecting block 403 to move horizontally back and forth, and the connecting block 403 drives the sliding rod 401 to move back and forth. The continuously moving sliding rod 401 will drive the bristles 402 to brush back and forth on the surface of the guide rail 101. The other features are the same as those in Example 1.

[0031] The working principle is as follows: by turning on the soft start brake motor 201, the driving gear 202 is driven to rotate. When the driving gear 202 rotates, it drives the two driven gears 203 to rotate in the same direction by meshing with the driven gears 203 on both sides, thereby causing the driven gear 203 to drive the guide wheel 204 to roll above the guide rail 101, thereby causing the rolling guide wheel 204 to drive the U-shaped frame 200 to move left and right along the guide frame 100 and the guide rail 101. By using the soft start brake motor 201 to drive the trolley to move, compared with the full-voltage direct start motor, the motor can be started smoothly by gradually increasing the voltage and frequency of the motor, thereby reducing the severe slip wear of the material during starting / braking, and by using the guide wheel 204 with wear-resistant nylon material, the amount of iron powder generated by friction with the guide rail 101 can be reduced. While the driven gear 203 rotates, it can drive the linkage gear 304 to rotate by meshing with the linkage gear 304, so that the linkage gear 304 drives the input shaft of the speed increaser 303 to rotate, thereby The output shaft of the speed increaser 303 drives the fan blades 305 to rotate inside the guide box 301. The speed increaser 303 is a power transmission component in the prior art. It can achieve speed increase by using the orderly arrangement of gears of different sizes inside. The fan blades 305 can blow air while rotating, so that the air flow is blown from the air outlet 302 to the top of the guide rail 101, blowing away the impurities and dust attached to the guide rail 101. The continuously rotating linkage gear 304 can drive one end of the connecting rod 404 to move in a circular motion through the linkage shaft 405. , and the other end of the connecting rod 404 drives the connecting block 403 to move back and forth horizontally by cooperating with another linkage shaft 405, and the connecting block 403 drives the sliding rod 401 to move back and forth. The moving sliding rod 401 can drive the guide slider 407 to slide in the guide slide groove 406, thereby preventing the sliding rod 401 from offsetting during the movement. The continuously moving sliding rod 401 will drive the bristles 402 to brush back and forth on the surface of the guide rail 101 to prevent dust and debris from adhering to the top of the guide rail 101.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A left-right traveling mechanism for a vehicle, comprising a guide frame (100) and a U-shaped frame (200), wherein guide rails (101) are provided on both sides of the guide frame (100); characterized in that: A soft start brake motor (201) is installed on one side of the U-shaped frame (200); an output end of the soft start brake motor (201) passes through the U-shaped frame (200) and is installed with a moving structure; four mounting plates (300) and four fixing rods (400) are symmetrically installed on the U-shaped frame (200); dust removal structures are installed on the four mounting plates (300); and cleaning structures are installed on the four fixing rods (400).

2. The left and right traveling mechanism of a vehicle according to claim 1, characterized in that: The mobile structure comprises a driving gear (202), which is mounted on the output end of the soft start brake motor (201); two driven gears (203) are rotatably mounted inside both sides of the U-shaped frame (200); the driving gear (202) is meshed with the two corresponding driven gears (203); and guide wheels (204) are mounted on the sides of the two driven gears (203) on the same side that are close to each other; the four guide wheels (204) are movably mounted above the two guide rails (101).

3. The left and right traveling mechanism of a vehicle according to claim 2, characterized in that: The guide wheel (204) is made of wear-resistant nylon.

4. The left and right traveling mechanism of a vehicle according to claim 1, characterized in that: The dust removal structure comprises a guide box (301), the guide box (301) being mounted on a mounting plate (300), an air outlet nozzle (302) being mounted on the guide box (301), the air outlet nozzle (302) being connected to the guide box (301), a speed increaser (303) being mounted on one side of the guide box (301), a linkage gear (304) being mounted on the input end of the speed increaser (303), the linkage gear (304) being meshed with the driven gear (203), an output end of the speed increaser (303) passing through the guide box (301) and being mounted with a fan blade (305), the fan blade (305) being located inside the guide box (301), and a plurality of ventilation holes (306) being provided on the guide box (301).

5. The left and right traveling mechanism of a vehicle according to claim 4, characterized in that: The air outlet nozzle (302) is arranged tilted, and the air outlet of the air outlet nozzle (302) faces upwards of the guide rail (101).

6. The left and right traveling mechanism of a vehicle according to claim 1, characterized in that: The cleaning structure comprises a sliding rod (401), the sliding rod (401) being slidably mounted on one side of the fixed rod (400), a brush (402) being mounted below the sliding rod (401), the brush (402) being in contact with the top of the guide rail (101), a connecting block (403) being mounted on one side of the sliding rod (401), one end of a connecting rod (404) being rotatably mounted on the connecting block (403), and the other end of the connecting rod (404) being rotatably mounted on one side of the linkage gear (304).

7. The left and right traveling mechanism of a vehicle according to claim 6, characterized in that: Both ends of the connecting rod (404) are internally rotatably mounted with linkage shafts (405), and the two linkage shafts (405) are respectively mounted on one side of the linkage gear (304) and the connecting block (403).

8. The left and right traveling mechanism of a vehicle according to claim 6, characterized in that: A guide slot (406) is provided inside the fixed rod (400), a guide slider (407) is slidably installed in the guide slot (406), and the guide slider (407) is installed on one side of the sliding rod (401).

Images