Brake structure for elevator

Abstract

The utility model discloses a brake structure for a hoister, which relates to the technical field of hoisters and comprises a base body, a mounting groove is arranged on the upper portion of the base body, a water storage groove is formed on the bottom wall in the mounting groove, a lifting plate is slidably connected in a cavity of the water storage groove, and a lifting driving mechanism for driving the lifting plate to lift is arranged in the cavity of the water storage groove. According to the brake structure for the elevator, through the arrangement of the water storage tank and the lifting plate, liquid for cooling is injected into the water storage tank in advance, then when the brake disc and the brake mechanism need to be cooled, the lifting plate is lifted, the liquid in the water storage tank is pushed into the mounting groove, cooling is conducted through the lifting plate, cooling is conducted through the water storage tank, and cooling is conducted. Therefore, the brake disc and the brake mechanism are both located in the cooling liquid body, the contact area between the brake disc and other structures and the cooling liquid can be increased, the cooling uniformity of the brake structure for the elevator is improved, and meanwhile the cooling effect of the brake structure for the elevator is improved.

Description

Technical Field

[0001] This utility model relates to the field of hoist technology, specifically a brake structure for a hoist. Background Technology

[0002] A mine hoist is a large-scale hoisting machine. Driven by an electric motor, it moves a steel wire rope, which in turn lifts and lowers a container within the mine shaft to complete the transport task. Mine hoists evolved from primitive water-lifting tools; the braking structure is a crucial component of a mine hoist, directly affecting its operational stability and safety.

[0003] Extensive searches revealed the following: Chinese Utility Model Patent Publication No. CN219932785U: A braking device for a mine hoist, belonging to the technical field of braking devices. It includes two base plates, each with a side plate on its top surface. The inner sides of the two side plates have clamping grooves, and the inner sides of the clamping grooves have bearing seats. A brake disc is fixedly connected to the bearing seats. A cooling mechanism is provided on one of the side plates, and support plates are fixedly connected to the sides of both side plates.

[0004] While the above solution offers numerous advantages, the device's spraying method for cooling the brake disc is ineffective. The spray range is limited, only cooling the area of ​​the brake structure facing the spray nozzles, while the side facing away from the spray nozzles cannot come into contact with the cooling liquid. This results in uneven cooling of the entire brake structure, which affects the service life of the brake structure used in the hoist and reduces its cooling effect. Utility Model Content

[0005] The purpose of this invention is to provide a brake structure for a hoist, so as to solve the problem of poor cooling effect of the current brake structure for hoists in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a brake structure for a hoist, comprising a base, an mounting groove on the upper part of the base, a water storage tank formed on the bottom wall inside the mounting groove, a lifting plate slidably connected inside the cavity of the water storage tank, and a lifting drive mechanism for driving the lifting plate to rise and fall, a sealing ring provided on the outer side of the lifting plate, the sealing ring contacting the inner wall of the water storage tank, a brake disc rotatably connected to the inner wall of the mounting groove, and a brake mechanism for limiting the rotation of the brake disc provided on the mounting groove.

[0007] Preferably, the braking mechanism includes two brake plates, with a rack rod fixedly connected to the top of each brake plate, a mounting bracket fixedly connected to the mounting groove, and a gear rotatably connected to the bottom of the mounting bracket. The gear and rack rod are both located directly above the brake disc, and the two rack rods are respectively meshed with the two sides of the gear.

[0008] Preferably, a first hydraulic rod is installed on the inner wall of the right side of the mounting groove, and the telescopic end of the first hydraulic rod is fixedly connected to the outer wall of the rightmost brake plate. Two stabilizing rods are fixedly connected to the inner wall of the mounting groove, and the two rack rods are slidably sleeved on the outside of the two stabilizing rods respectively.

[0009] Preferably, the brake plate includes an arc-shaped pressure plate and a brake pad, the brake pad being mounted on the arc-shaped surface wall of the arc-shaped pressure plate and in contact with the surface of the brake disc.

[0010] Preferably, the lifting drive mechanism includes a second hydraulic rod and four vertical rods. The bottom ends of the four vertical rods are respectively fixedly connected to the four corners of the top of the lifting plate. The top wall inside the water storage tank is provided with vertical grooves at corresponding positions of each vertical rod. The vertical rods are slidably connected in the cavity of the vertical grooves. The second hydraulic rod is installed on the bottom wall inside the water storage tank, and the telescopic end of the second hydraulic rod is fixedly connected to the upper part of the lifting plate. The top wall inside the water storage tank is formed with hydraulic grooves, and the second hydraulic rod is installed in the cavity of the hydraulic grooves.

[0011] Preferably, the bottom wall inside the water storage tank is provided with air holes.

[0012] Preferably, a water outlet is fixedly connected at the junction of the water storage tank and the installation tank, and a switch valve is provided on the water outlet.

[0013] Preferably, two bearing seats are sleeved on the outer side of the brake disc, and through openings are formed on the inner walls of both sides of the mounting groove, with the bearing seats installed in the cavity of the through openings.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application involves setting up a water storage tank and a lifting plate. Cooling liquid is injected into the water storage tank in advance. When the brake disc and brake mechanism need to be cooled, the lifting plate is raised to push the liquid in the water storage tank into the installation tank. This ensures that the brake disc and brake mechanism are both in the cooling liquid, thereby increasing the contact area between the brake disc and other structures and the cooling liquid. This improves the uniformity of cooling of the brake structure used in the hoist and also enhances the cooling effect of the brake structure used in the hoist.

[0016] 2. By setting a rack and pinion and a gear, this application only requires a set of hydraulic rods or other drive devices to be installed on one side of the brake plate, which reduces the number of drive devices used in the brake structure of the hoist and thus reduces the cost of using the brake structure of the hoist. Attached Figure Description

[0017] Figure 1This is a three-dimensional schematic diagram of the overall brake structure for a hoist according to the present invention;

[0018] Figure 2 This is a three-dimensional cross-sectional view of the brake structure for a hoist according to the present invention.

[0019] Figure 3 This is a schematic cross-sectional view of the overall structure of a brake structure for a hoist according to the present invention.

[0020] Figure 4 This is a three-dimensional schematic diagram of the cooperation between the lifting plate, brake disc and brake mechanism of the brake structure for a hoist according to the present invention;

[0021] Figure 5 This is a three-dimensional schematic diagram of the brake plate of a brake structure for a hoist according to the present invention.

[0022] The following are the labels in the diagram: 1. Base; 2. Mounting groove; 3. Brake disc; 4. Lifting plate; 5. Water storage tank; 6. Brake plate; 601. Arc-shaped pressure plate; 602. Brake pad; 7. Rack and pinion; 8. Gear; 9. First hydraulic rod; 10. Stabilizing rod; 11. Second hydraulic rod; 12. Vertical rod; 13. Water outlet; 14. Bearing seat. Detailed Implementation

[0023] 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.

[0024] Example: Figure 1 - Figure 5 As shown, this utility model provides a technical solution for a brake structure for a hoist, including a base 1, an installation groove 2 on the upper part of the base 1, a water storage tank 5 formed on the bottom wall inside the installation groove 2, a lifting plate 4 slidably connected inside the cavity of the water storage tank 5, and a lifting drive mechanism for driving the lifting plate 4 to rise and fall. A sealing ring is provided on the outer side of the lifting plate 4, and the sealing ring is in contact with the inner wall of the water storage tank 5. A brake disc 3 is rotatably connected to the inner wall of the installation groove 2, and a brake mechanism for limiting the rotation of the brake disc 3 is provided on the installation groove 2.

[0025] Fill the water tank 5 with coolant. When the brake disc 3 and brake mechanism need to be cooled, simply lift the lifting plate 4. The lifting plate 4 will push the coolant into the mounting groove 2, so that the brake disc 3 and brake mechanism are located inside the coolant. Use the coolant to cool the brake mechanism and brake disc 3.

[0026] A water inlet pipe is fixedly connected to the inner wall of one side of the mounting groove 2, and a water storage tank is provided on one side of the base 1. The water inlet pipe is fixedly connected to the water pump outlet in the water storage tank.

[0027] A water storage tank can be installed in advance to store cooling liquid. When the liquid in the water storage tank 5 is insufficient, water can be injected into the water storage tank 5 using a water pump.

[0028] When the cooling liquid in the water storage tank 5 becomes too hot and boils, the hot water can be discharged through the outlet 13 and then the liquid can be re-injected into the installation tank 2.

[0029] The water pump, water storage tank, water inlet pipe, first hydraulic rod 9 and second hydraulic rod 11 used in this application are all purchased parts. They are selected according to the power and size requirements. The control switch system uses the modules provided by the corresponding vendors. This application will not go into too much detail.

[0030] like Figure 2 As shown, the braking mechanism includes two brake plates 6. A rack rod 7 is fixedly connected to the top of the brake plate 6. A mounting bracket is fixedly connected to the opening of the mounting groove 2. A gear 8 is rotatably connected to the bottom of the mounting bracket. The gear 8 and the rack rod 7 are both located directly above the brake disc 3. The two rack rods 7 are respectively meshed with the two sides of the gear 8.

[0031] like Figure 2 - Figure 5 As shown, a first hydraulic rod 9 is installed on the inner wall of the right side of the mounting groove 2. The telescopic end of the first hydraulic rod 9 is fixedly connected to the outer wall of the rightmost brake plate 6. Two stabilizer rods 10 are fixedly connected to the inner wall of the mounting groove 2. Two rack rods 7 are slidably sleeved on the outer side of the two stabilizer rods 10 respectively.

[0032] The rightmost brake plate 6 is pushed by the first hydraulic rod 9 to approach and press against the brake disc 3. At the same time, the rightmost brake plate 6 drives the gear 8 to rotate by the corresponding rack rod 7. The gear 8 drives another rack rod 7 to move in the opposite direction. The other rack rod 7 drives the left brake plate 6 to approach and press against the brake disc 3.

[0033] like Figure 5 As shown, the brake plate 6 includes an arc-shaped pressure plate 601 and a brake pad 602. The brake pad 602 is mounted on the arc-shaped surface wall of the arc-shaped pressure plate 601 and is in contact with the surface of the brake disc 3.

[0034] like Figure 2 - Figure 4As shown, the lifting drive mechanism includes a second hydraulic rod 11 and four vertical rods 12. The bottom ends of the four vertical rods 12 are fixedly connected to the four corners of the top of the lifting plate 4. The top wall inside the water storage tank 5 is provided with vertical grooves at corresponding positions of each vertical rod 12. The vertical rods 12 are slidably connected in the cavity of the vertical grooves. The second hydraulic rod 11 is installed on the bottom wall inside the water storage tank 5, and the telescopic end of the second hydraulic rod 11 is fixedly connected to the upper part of the lifting plate 4. The top wall inside the water storage tank 5 is formed with hydraulic grooves, and the second hydraulic rod 11 is installed in the cavity of the hydraulic grooves.

[0035] like Figure 1 - Figure 3 As shown, air holes are provided on the bottom wall inside the water storage tank 5;

[0036] The vent is a space located below the lifting plate 4 and is used to expel or draw air into the water storage tank 5, thereby balancing the air pressure inside the water storage tank 5.

[0037] like Figure 3 As shown, a water outlet 13 is fixedly connected at the junction of the water storage tank 5 and the installation tank 2, and a switch valve is installed on the water outlet 13.

[0038] The on / off valve is used to control the opening and closing of the outlet 13, which can be used to discharge excess cooling liquid injected into the water storage tank 5.

[0039] like Figure 1 , Figure 2 and Figure 4 As shown, two bearing seats 14 are fitted on the outer side of the brake disc 3. Through-holes are formed on the inner walls of both sides of the mounting groove 2, and the bearing seats 14 are installed in the cavity of the through-holes.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A brake structure for a hoist, comprising a base (1), characterized in that: The upper part of the base (1) is provided with an installation groove (2), and a water storage tank (5) is formed on the bottom wall inside the installation groove (2). A lifting plate (4) is slidably connected inside the cavity of the water storage tank (5), and a lifting drive mechanism is provided to drive the lifting plate (4) to rise and fall. A brake disc (3) is rotatably connected to the inner wall of the installation groove (2), and a brake mechanism is provided on the installation groove (2) to limit the rotation of the brake disc (3).

2. The brake structure for a hoist according to claim 1, characterized in that: The braking mechanism includes two brake plates (6), with a rack rod (7) fixedly connected to the top of the brake plate (6), a mounting bracket fixedly connected to the groove of the mounting slot (2), and a gear (8) rotatably connected to the bottom of the mounting bracket. The two rack rods (7) are respectively meshed with the two sides of the gear (8).

3. The brake structure for a hoist according to claim 2, characterized in that: A first hydraulic rod (9) is installed on the inner wall of the right side of the mounting groove (2). The telescopic end of the first hydraulic rod (9) is fixedly connected to the outer wall of the rightmost brake plate (6). Two stabilizing rods (10) are fixedly connected to the inner wall of the mounting groove (2). The two rack rods (7) are respectively slidably sleeved on the outside of the two stabilizing rods (10).

4. The brake structure for a hoist according to claim 3, characterized in that: The brake plate (6) includes an arc-shaped pressure plate (601) and a brake pad (602), wherein the brake pad (602) is mounted on the arc-shaped surface wall of the arc-shaped pressure plate (601).

5. A brake structure for a hoist according to claim 1, characterized in that: The lifting drive mechanism includes a second hydraulic rod (11) and four vertical rods (12). The bottom ends of the four vertical rods (12) are respectively fixedly connected to the four corners of the top of the lifting plate (4). The top wall inside the water storage tank (5) is provided with vertical grooves at the corresponding positions of each vertical rod (12). The vertical rods (12) are slidably connected in the cavity of the vertical grooves. The second hydraulic rod (11) is installed on the bottom wall inside the water storage tank (5), and the telescopic end of the second hydraulic rod (11) is fixedly connected to the upper part of the lifting plate (4).

6. The brake structure for a hoist according to claim 1, characterized in that: The bottom wall inside the water storage tank (5) is provided with air holes.

7. A brake structure for a hoist according to claim 1, characterized in that: A water outlet (13) is fixedly connected at the junction of the water storage tank (5) and the installation tank (2), and a switch valve is provided on the water outlet (13).

8. A brake structure for a hoist according to claim 1, characterized in that: Two bearing seats (14) are sleeved on the outside of the brake disc (3). Both sides of the mounting groove (2) are formed with through-holes. The bearing seats (14) are installed in the cavity of the through-holes.

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