CN219349896U

CN219349896U - Novel crane resistor

Info

Publication number: CN219349896U
Application number: CN202320258871.8U
Authority: CN
Inventors: 李恩汉; 宋菲菲; 宋淑鑫; 王博雅
Original assignee: Henan John Hoisting Electric Co ltd
Current assignee: Henan John Hoisting Electric Co ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-07-14
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses a novel crane resistor, which relates to the technical field of crane resistors and comprises a protection box, wherein a resistor main body is arranged in the protection box, a cover plate is arranged at the top end of the protection box, exhaust screens are embedded in the inside of the front end and the rear end of the protection box, a through groove is formed in one side of the protection box, an installation box is arranged on the other side of the protection box, a servo motor is arranged at the top end of the installation box, a screw rod is arranged at the output end of the servo motor, and the bottom end of the screw rod is connected with the bottom end of the inside of the installation box through a rotating shaft. According to the utility model, the servo motor is started to drive the screw rod to rotate, so that the threaded block can move in the vertical direction, and the position of the fan is adjusted, so that the fan blows air to different layers of the resistor main body, and the dust is blown out of the protection box from the through groove, thereby rapidly completing the ash removal treatment of each position of the resistor main body.

Description

Novel crane resistor

Technical Field

The utility model relates to the technical field of crane resistors, in particular to a novel crane resistor.

Background

The crane is a large-scale hoisting equipment, and a crane resistor is arranged in the crane equipment and used for adjusting the resistance value of the equipment, and the equipment is suitable for matching in a circuit of alternating current 50 Hz and low voltage to 660V to control the starting and the braking of a motor.

The crane resistor in the prior art is generally protected by being installed in a closed manner, the shell of the crane resistor is provided with a heat dissipation hole, dust caused by the heat dissipation hole is easy to adhere to the resistor body, and the use of the crane resistor is influenced.

Disclosure of Invention

The utility model aims to provide a novel crane resistor so as to solve the problem that dust adhered to the crane resistor in the background art is difficult to clean.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel hoist resistor, includes the guard box, the inside of guard box is provided with the resistor main part, and the apron is installed on the top of guard box, the inside at both ends all imbeds around the guard box has been aired exhaust screen cloth, logical groove has been seted up to one side of guard box, and the opposite side of guard box installs the mounting box, servo motor is installed on the top of mounting box, and servo motor's output installs the lead screw, the bottom of lead screw is connected with the inside bottom of mounting box through the pivot, and the screw thread piece is installed to the outer wall of lead screw, the fan is installed to the one end of screw thread piece.

Preferably, the guide grooves are formed in the front end and the rear end of the inside of the installation box, guide blocks are fixed at the front end and the rear end of the threaded block, and the threaded block is in sliding connection with the installation box through sliding fit between the guide blocks and the guide grooves.

Preferably, a guide hopper is arranged at one side, close to the through groove, inside the protection box, and the outer wall of the guide hopper is welded with the inner wall of the protection box.

Preferably, two fixed boxes are installed on one side of the protection box, moving strips are arranged in the fixed boxes, baffles are installed at one ends of the moving strips, and sealing gaskets are adhered to one ends of the baffles.

Preferably, the height of the baffle is greater than the height of the through groove, and the width of the baffle is greater than half of the width of the through groove.

Preferably, two draw-in grooves have all been seted up at the upper and lower both ends of fixed box, the cavity has all been seted up to the inside at both ends about the movable strip, and the rotary rod is all installed through the pivot to one side of cavity inside, one side of rotary rod all extends to the outside of fixed box, the connecting rod is all installed through the articulated elements to the inside rotary rod outer wall of cavity, and the movable block is all installed through the articulated elements to the one end of connecting rod, the fixture block is all installed to the one end of movable block, the connected mode between movable block and the cavity is sliding connection.

Preferably, the outer wall of the rotary rod is provided with external threads, and the inner wall of the movable sleeve is provided with internal threads matched with the external threads.

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

through starting servo motor, make it drive the lead screw rotation, can make the screw thread piece remove in vertical direction, and then adjust the position of fan for the fan blows to the different layers of resistor main part, blows out inside the guard box with these dust from logical groove, thereby accomplish the deashing processing of each position of resistor main part fast.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic side sectional view of the present utility model;

FIG. 3 is a schematic side view of the combination of the protective case and the guide hopper of the present utility model;

fig. 4 is a schematic view of a partial front sectional structure of a moving bar according to the present utility model.

In the figure: 1. a cover plate; 2. a resistor body; 3. a fixed box; 4. a through groove; 5. a guide hopper; 6. a protection box; 7. a mounting box; 8. a screw rod; 9. a blower; 10. a screw block; 11. a servo motor; 12. an exhaust screen; 13. moving the bar; 14. a clamping block; 15. a baffle; 16. a rotating rod; 17. a clamping groove; 18. a moving block; 19. a connecting rod; 20. a cavity; 21. and (5) moving the sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1-4, a novel crane resistor comprises a protection box 6, wherein a resistor main body 2 is arranged in the protection box 6, a cover plate 1 is arranged at the top end of the protection box 6, exhaust screens 12 are embedded in the insides of the front end and the rear end of the protection box 6, a through groove 4 is formed in one side of the protection box 6, an installation box 7 is arranged on the other side of the protection box 6, a servo motor 11 is arranged at the top end of the installation box 7, a screw rod 8 is arranged at the output end of the servo motor 11, the bottom end of the screw rod 8 is connected with the bottom end inside the installation box 7 through a rotating shaft, a thread block 10 is arranged on the outer wall of the screw rod 8, and a fan 9 is arranged at one end of the thread block 10;

guide grooves are formed in the front end and the rear end of the inside of the mounting box 7, guide blocks are fixed at the front end and the rear end of the threaded block 10, and the threaded block 10 is in sliding connection with the mounting box 7 through sliding fit between the guide blocks and the guide grooves;

a guide hopper 5 is arranged at one side of the inside of the protection box 6, which is close to the through groove 4, and the outer wall of the guide hopper 5 is welded with the inner wall of the protection box 6;

specifically, as shown in fig. 1 and 3, by starting the blower 9, the blower 9 blows off dust on the resistor main body 2, a small part of the dust leaves the device from the exhaust screen 12, a large part of the dust is discharged from the through groove 4 along with the guiding of the guide hopper 5, ash removal is completed, the servo motor 11 is started to drive the screw rod 8 to rotate, the thread block 10 can be moved in the vertical direction, and the position of the blower 9 is adjusted, so that the blower 9 blows air to different layers of the resistor main body 2.

Two fixed boxes 3 are arranged on one side of the protection box 6, moving strips 13 are arranged in the fixed boxes 3, a baffle 15 is arranged at one end of each moving strip 13, and a sealing gasket is adhered at one end of each baffle 15;

the height of the baffle 15 is larger than that of the through groove 4, and the width of the baffle 15 is larger than half of that of the through groove 4;

specifically, as shown in fig. 2, when two baffles 15 are in contact, the two baffles can block the through groove 4, so that external sundries are prevented from entering from the through groove 4.

Two clamping grooves 17 are formed in the upper end and the lower end of the fixed box 3, a cavity 20 is formed in the inner portion of the upper end and the lower end of the movable bar 13, a rotary rod 16 is installed on one side of the inner portion of the cavity 20 through a rotary shaft, one side of the rotary rod 16 extends to the outer side of the fixed box 3, a connecting rod 19 is installed on the outer wall of the rotary rod 16 in the inner portion of the cavity 20 through a hinge piece, a movable block 18 is installed at one end of the connecting rod 19 through a hinge piece, a clamping block 14 is installed at one end of the movable block 18, and the movable block 18 is connected with the cavity 20 in a sliding mode;

the outer wall of the rotary rod 16 is provided with external threads, and the inner wall of the movable sleeve 21 is provided with internal threads matched with the external threads;

specifically, as shown in fig. 2 and 4, by rotating the rotating rod 16, the moving sleeve 21 on the outer wall of the rotating rod is moved in an oriented manner, and the moving block 18 is pushed and pulled by the connecting rod 19, so that the clamping block 14 is driven, and the moving bar 13 can be fixed at a proper position by inserting the clamping block 14 into the clamping grooves 17 at different positions, so that the position of the baffle 15 is determined.

Working principle: when the device is used, the exhaust screen 12 of the device allows the inside of the protection box 6 to circulate with the outside air when isolating most of the air, so that the basic heat dissipation of the resistor main body 2 is ensured, but after long-term use, some tiny dust is unavoidably accumulated on the resistor main body 2;

at this time, the rotating rod 16 can be rotated to enable the movable sleeve 21 on the outer wall of the movable sleeve to move in an oriented manner, the movable block 18 is pulled by the connecting rod 19 to pull the clamping block 14 out of the clamping groove 17, then the baffle 15 is pulled by the sliding fit of the movable bar 13 and the fixed box 3 by pulling the rotating rod 16, so that the two closely attached baffles 15 are separated from each other and enter the fixed box 3, at the moment, the rotating rod 16 is rotated reversely, and the clamping block 14 is inserted into the other clamping groove 17 to fix the position of the baffle 15;

at this time, the through groove 4 is exposed, dust on the resistor main body 2 can be blown off by the fan 9 by starting the fan 9, a small part of dust leaves the device from the air exhaust screen 12, a large part of dust can be discharged outside from the through groove 4 along with the guiding of the guide hopper 5, ash removal is completed, the screw rod 8 is driven to rotate by starting the servo motor 11, the threaded block 10 can be moved in the vertical direction, and the position of the fan 9 is adjusted, so that the fan 9 blows air to different layers of the resistor main body 2.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a novel hoist resistor, includes guard box (6), the inside of guard box (6) is provided with resistor main part (2), and apron (1) are installed on the top of guard box (6), all imbeds exhaust screen cloth (12), its characterized in that in the inside at both ends around guard box (6): the utility model discloses a fan, including lead to groove (4) has been seted up to one side of guard box (6), and install mounting box (7) the opposite side of guard box (6), servo motor (11) are installed on the top of mounting box (7), and lead screw (8) are installed to the output of servo motor (11), the bottom of lead screw (8) is connected with the inside bottom of mounting box (7) through the pivot, and screw thread piece (10) are installed to the outer wall of lead screw (8), fan (9) are installed to the one end of screw thread piece (10).

2. The novel crane resistor according to claim 1, wherein: guide grooves are formed in the front end and the rear end of the inside of the installation box (7), guide blocks are fixed at the front end and the rear end of the threaded block (10), and the threaded block (10) is in sliding connection with the installation box (7) through sliding fit between the guide blocks and the guide grooves.

3. The novel crane resistor according to claim 1, wherein: and a guide hopper (5) is arranged at one side, close to the through groove (4), inside the protection box (6), and the outer wall of the guide hopper (5) is welded with the inner wall of the protection box (6).

4. The novel crane resistor according to claim 1, wherein: two fixed boxes (3) are installed to one side of guard box (6), and the inside of fixed box (3) all is provided with removes strip (13), baffle (15) are all installed to the one end of removing strip (13), and the one end of baffle (15) all bonds and has sealed pad.

5. The novel crane resistor according to claim 4, wherein: the height of the baffle plate (15) is larger than that of the through groove (4), and the width of the baffle plate (15) is larger than half of that of the through groove (4).

6. The novel crane resistor according to claim 4, wherein: two draw-in grooves (17) have all been seted up at the upper and lower both ends of fixed box (3), cavity (20) have all been seted up to the inside at both ends about movable bar (13), and rotary rod (16) are all installed through the pivot to one side of cavity (20) inside, one side of rotary rod (16) all extends to the outside of fixed box (3), connecting rod (19) are all installed through the articulated elements to rotary rod (16) outer wall of cavity (20) inside, and movable block (18) are all installed through the articulated elements to the one end of connecting rod (19), fixture block (14) are all installed to the one end of movable block (18), connected mode between movable block (18) and cavity (20) is sliding connection.

7. The novel crane resistor according to claim 6, wherein: the outer wall of the rotary rod (16) is provided with external threads, and the inner wall of the movable sleeve (21) is provided with internal threads matched with the external threads.