Heavy-duty brake flange and method of assembly

Abstract

The application discloses a heavy-duty brake flange, which comprises a flange body, a first flange, a second flange, a first oil groove and a second oil groove, wherein one end of the flange body is open, the other end is provided with a closed end, the closed end is provided with a first mounting hole and a second mounting hole, the inner wall surface of the inner cavity of the flange body is a conical surface, and the inner wall surface is provided with the first oil groove and the second oil groove; the first flange and the second flange are arranged on the outer wall of the flange body, the first flange is internally provided with a first oil channel, the second flange is internally provided with a second oil channel, the first oil groove is in communication with the first oil channel, and the second oil groove is in communication with the second oil channel. The application discloses an assembling method of the heavy-duty brake flange. The application solves the problems of the prior art, has the advantages of convenient assembling, safety and reliability, no need of heating or freezing and easy realization.

Description

Technical Field

[0001] This invention relates to mining machinery technology, specifically to a heavy-duty brake flange and its assembly method. Background Technology

[0002] Mining trucks are essential transportation equipment in open-pit mining. Due to their large load capacity and harsh operating environment, the safety and reliability requirements of their braking systems are extremely high. The brake flange of the braking system is used to connect the brake disc and the motor output shaft. The brake flange is mounted on the motor output shaft and is used to transmit braking torque.

[0003] There are two existing technical solutions for installing brake flanges:

[0004] 1. The brake flange is bolted to the end face of the motor output shaft.

[0005] The disadvantage of this approach is that the brake flange is subjected to alternating loads during use, which may cause the bolts to loosen and affect the reliability of the brake flange connection.

[0006] 2. The connection between the brake flange and the motor output shaft adopts an interference fit cylindrical fit or a tapered fit.

[0007] During the assembly of the brake flange, the interference fit requires either freezing or heating. However, heating can easily damage the seals on the motor output shaft; freezing requires liquid nitrogen, which is generally not available on mining sites, making on-site installation and maintenance inconvenient. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a heavy-duty brake flange and assembly method, which solves the shortcomings of the prior art and has the advantages of convenient assembly, safety and reliability, no need for heating or freezing, and easy implementation.

[0009] The technical solution is as follows:

[0010] A heavy-duty brake flange includes: a flange body, a first flange, a second flange, a first oil groove, and a second oil groove. The flange body has an open end and a constricted end. The constricted end has a first mounting hole and a second mounting hole. Multiple first mounting holes are located outside the second mounting holes. The inner wall surface of the flange body is a tapered surface, with the inner diameter near the constricted end being smaller than the inner diameter near the open end. The inner wall surface has a first oil groove and a second oil groove. The first flange and the second flange are mounted on the outer wall of the flange body. The first flange has a first oil passage inside, and the second flange has a second oil passage inside. The first oil groove is connected to the first oil passage, and the second oil groove is connected to the second oil passage.

[0011] Furthermore, end face grooves are provided at the connection positions of the closure and flange body.

[0012] Furthermore, the first flange is located in the middle, and the second flange is located on the constriction side.

[0013] Furthermore, the first and second oil grooves are annular oil grooves with a semi-circular arc cross-section.

[0014] Furthermore, the first flange and the second flange are circular, the first oil port of the first oil passage is located on the circumferential surface of the first flange, and the second oil port of the second oil passage is located on the circumferential surface of the second flange.

[0015] Furthermore, the first flange is provided with multiple first flange through holes, and the second flange is provided with multiple second flange through holes.

[0016] The assembly method for heavy-duty brake flanges includes:

[0017] The end of the connecting shaft extends into the inner cavity from the opening of the heavy-duty brake flange, and the left end of the screw extends into the first threaded hole at the end of the connecting shaft from the second mounting hole; the mounting pad and jack are then placed on the screw in sequence, and the right end of the screw extends out from the jack and is locked with a nut;

[0018] High-pressure oil is connected to the first oil port and the high-pressure oil port of the jack through pipelines. The pressure of the high-pressure oil port and the first oil port is increased alternately. The screw pulls the connecting shaft to move in the direction of the second mounting hole until the end face of the connecting shaft passes the second oil groove, and the pressure of the first oil port is released to 0.

[0019] Connect the high-pressure oil to the second oil port through the pipeline, alternately pressurize the high-pressure oil port and the second oil port, and the screw pulls the connecting shaft to move until the end face reaches the end face groove position, and the heavy-duty brake flange is installed in place.

[0020] Release the pressure oil from the second oil port and the high-pressure oil port, remove the pad, jack, nut, and screw, and connect the bolts through the first mounting hole to the second threaded hole of the connecting shaft to connect the heavy-duty brake flange and the connecting shaft together.

[0021] Preferably, the pressure of the high-pressure oil port is slowly increased, the screw pulls the connecting shaft to move in the direction of the second mounting hole, the pressure increase of the high-pressure oil port is stopped and the existing pressure is maintained, the pressure of the first oil port is slowly increased until oil leaks out, the pressure increase of the first oil port is stopped and the existing pressure is maintained; the pressure of the high-pressure oil port and the first oil port are alternately increased until the end face of the connecting shaft passes the second oil groove, and the first oil port is released.

[0022] Compared with the prior art, the technical effects of the present invention include:

[0023] 1. The main tool used in the installation method of this invention is a jack, and there is no need to freeze parts during the installation process, which is easy to implement and convenient to assemble.

[0024] 2. This invention does not require heating when installing the brake flange onto the connecting shaft, thus avoiding damage to other components.

[0025] 3. The present invention uses a tapered interference fit for assembling the connecting shaft and the brake flange, which has the advantages of safety and reliability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the heavy-duty brake flange in this invention;

[0027] Figure 2 This is a schematic diagram of the structure of the first oil tank in this invention;

[0028] Figure 3 This is a schematic diagram of the installation of the heavy-duty brake flange in this invention;

[0029] Figure 4 This is a schematic diagram of the screw pulling the connecting shaft in this invention;

[0030] Figure 5 This is a schematic diagram of the installation of the heavy-duty brake flange in this invention. Detailed Implementation

[0031] The following description fully illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce them. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the invention more thorough and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0032] like Figure 1 The diagram shown is a structural schematic of the heavy-duty brake flange in this invention.

[0033] The heavy-duty brake flange 1 includes: flange body 10, first flange 13, second flange 14, first oil groove 15, and second oil groove 16.

[0034] The flange body 10 has an opening at one end and a constriction 11 at the other end. The constriction 11 has a first mounting hole 12 and a second mounting hole 17, with multiple first mounting holes 12 located outside the second mounting holes 17. A first flange 13 and a second flange 14 are disposed on the outer wall of the flange body 10, with the first flange 13 located in the middle and the second flange 14 located on one side of the constriction 11. A first oil passage 131 is disposed inside the first flange 13, and a second oil passage 141 is disposed inside the second flange 14. The inner wall surface of the flange body 10 is a tapered surface, with the inner diameter on the side near the constriction 11 being smaller than the inner diameter on the side near the opening. A first oil groove 15 and a second oil groove 16 are disposed on the inner wall surface, with the first oil groove 15 connected to the first oil passage 131 and the second oil groove 16 connected to the second oil passage 141. An end face groove 18 is disposed at the connection position between the constriction 11 and the flange body 10.

[0035] The first oil port 132 of the first oil passage 131 is located on the circumferential surface of the first flange 13, and the second oil port 142 of the second oil passage 141 is located on the circumferential surface of the second flange 14.

[0036] The first flange 13 is circular and is used to install the brake disc. The first flange 13 is provided with multiple first flange through holes 133. The second flange 14 is circular and is used to install the brake disc. It is provided with multiple second flange through holes.

[0037] like Figure 2 The diagram shown is a schematic diagram of the structure of the first oil tank 15 in this invention.

[0038] The second oil tank 16 has a similar structure to the first oil tank 15. The first oil tank 15 and the second oil tank 16 are annular oil tanks with a semi-circular cross-section, and the oil can flow in the first oil tank 15 and the second oil tank 16.

[0039] The heavy-duty brake flange 1 can be connected to the motor output shaft or applied to other equipment to transmit large torque. In this preferred embodiment, the connection method of the heavy-duty brake flange 1 in this invention is described in detail using the connecting shaft 2 as an example.

[0040] like Figure 3 The diagram shown is a schematic of the installation of the heavy-duty brake flange 1 in this invention; as shown... Figure 4 The diagram shown is a schematic of the screw 6 pulling the connecting shaft 2 in this invention.

[0041] The assembly method for heavy-duty brake flange 1 is as follows:

[0042] Step 1: Clean all parts. The end of the connecting shaft 2 extends into the inner cavity from the opening of the heavy-duty brake flange 1. The left end of the screw 6 extends into the first threaded hole 21 at the end of the connecting shaft 2 from the second mounting hole 17.

[0043] Step 2: Install the mounting pad 3 and jack 4 onto the screw rod 6 in sequence. After the right end of the screw rod 6 extends out from the jack 4, tighten it with the nut 5.

[0044] The side of the jack 4 is provided with a high-pressure oil port 41, which is connected to the oil chamber.

[0045] Step 3: Connect the high-pressure oil to the first oil port 132 and the high-pressure oil port 41 of the jack 4 through the pipeline respectively; alternately pressurize the high-pressure oil port 41 and the first oil port 13, and the screw 6 pulls the connecting shaft 2 to move towards the second mounting hole 17; until the end face 23 of the connecting shaft 2 passes the second oil groove 16, and release the pressure of the first oil port 13 to 0;

[0046] Slowly increase the pressure on the high-pressure oil port 41, and the screw 6 pulls the connecting shaft 2 towards the second mounting hole 17; stop the pressure increase on the high-pressure oil port 41 and maintain the existing pressure, slowly increase the pressure on the first oil port 132 until oil leaks out, stop the pressure increase on the first oil port 13 and maintain the existing pressure; alternately increase the pressure on the high-pressure oil port 41 and the first oil port 13 until the end face 23 of the connecting shaft 2 passes the second oil groove 16, and release the pressure on the first oil port 13 to 0.

[0047] like Figure 5 The diagram shown is a schematic of the installation of the heavy-duty brake flange 1 in this invention.

[0048] Step 4: Connect the high-pressure oil to the second oil port 142 through the pipeline, alternately pressurize the high-pressure oil port 41 and the second oil port 142, and pull the connecting shaft 2 with the screw 6 until the end face 23 reaches the end face groove 18 position, and the heavy-duty brake flange 1 is installed in place.

[0049] Step 5: Release the pressure oil from the second oil port 142 and the high-pressure oil port 41, remove the pad 3, jack 4, nut 5, screw 6, and bolt 7 through the first mounting hole 12 to connect to the second threaded hole of the connecting shaft 2, and connect the heavy-duty brake flange 1 and the connecting shaft 2 together.

[0050] Since the heavy-duty brake flange 1 and the connecting shaft 2 are interference fit, the end face groove 18 on the heavy-duty brake flange 1 plays a role in releasing the stress concentration caused by the deformation of the brake flange.

[0051] The terminology used in this invention is descriptive and exemplary, not restrictive. Since this invention can be embodied in many forms without departing from the spirit or essence of the technical solution, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A heavy-duty brake flange, characterized in that, include: The flange body comprises a first flange, a second flange, a first oil groove, and a second oil groove. One end of the flange body is open, and the other end has a constricted opening. The constricted opening has a first mounting hole and a second mounting hole. Multiple first mounting holes are located outside the second mounting holes. The inner wall surface of the flange body's inner cavity is conical, with the inner diameter near the constricted opening being smaller than the inner diameter near the open opening. The inner wall surface has a first oil groove and a second oil groove. The first and second flanges are mounted on the outer wall of the flange body, with the first flange located in the middle and the second flange located on the constricted opening side. The first flange has multiple first flange through holes, and the second flange has multiple second flange through holes. A first oil passage is located inside the first flange, and a second oil passage is located inside the second flange. The first oil groove is connected to the first oil passage, and the second oil groove is connected to the second oil passage. The first and second flanges are circular. The first oil port of the first oil passage is located on the circumference of the first flange, and the second oil port of the second oil passage is located on the circumference of the second flange.

2. The heavy-duty brake flange as described in claim 1, characterized in that, The flange body connection position is provided with an end face groove.

3. The heavy-duty brake flange as described in claim 1, characterized in that, The first and second oil grooves are annular oil grooves with a semi-circular arc cross-section.

4. The assembly method of the heavy-duty brake flange as described in any one of claims 1-3, characterized in that, include: The end of the connecting shaft extends into the inner cavity from the opening of the heavy-duty brake flange, and the left end of the screw extends into the first threaded hole at the end of the connecting shaft from the second mounting hole; the mounting pad and jack are then placed on the screw in sequence, and the right end of the screw extends out from the jack and is locked with a nut; High-pressure oil is connected to the first oil port and the high-pressure oil port of the jack via pipelines. The pressure at the high-pressure oil port and the first oil port is increased alternately. The screw pulls the connecting shaft to move towards the second mounting hole until the end face of the connecting shaft passes the second oil groove, and the pressure at the first oil port is released to 0. The pressure at the high-pressure oil port is slowly increased. The screw pulls the connecting shaft to move towards the second mounting hole. The pressure increase at the high-pressure oil port is stopped and the existing pressure is maintained. The pressure at the first oil port is slowly increased until oil leaks out. The pressure increase at the first oil port is stopped and the existing pressure is maintained. The pressure at the high-pressure oil port and the first oil port is increased alternately until the end face of the connecting shaft passes the second oil groove, and the pressure at the first oil port is released. Connect the high-pressure oil to the second oil port through the pipeline, alternately pressurize the high-pressure oil port and the second oil port, and the screw pulls the connecting shaft to move until the end face reaches the end face groove position, and the heavy-duty brake flange is installed in place. Release the pressure oil from the second oil port and the high-pressure oil port, remove the pad, jack, nut, and screw, and connect the bolts through the first mounting hole to the second threaded hole of the connecting shaft to connect the heavy-duty brake flange and the connecting shaft together.

Images