Monorail crane brake oil cylinder device

Abstract

The invention discloses a monorail crane brake oil cylinder device, which relates to the rail transportation technology, and comprises a brake oil cylinder, rocker arms are rotatably mounted at two ends of the brake oil cylinder, brake rods are rotatably mounted on the rocker arms, and the monorail crane brake oil cylinder device is characterized in that a brake block is horizontally and rotatably mounted at one end, close to a rail, of each brake rod; when the brake block extrudes the bent part of the track, the brake block and the brake rod rotate relatively so that the brake block can be attached to the outer wall of the track in an inclined mode. The invention provides a monorail crane brake oil cylinder device which comprises a brake oil cylinder, a brake rod and a brake block, the brake rod and the brake block are horizontally and rotatably connected, and when the brake oil cylinder pushes the brake block to extrude a bent part on a rail, the brake block can rotate along with the brake block to be attached to the outer wall of the rail. Therefore, the phenomenon that one side of the brake block is in contact with the rail and the other side of the brake block is not in contact with the rail is avoided, uneven stress on the brake block is avoided, the stability and the effect of braking are ensured, and the service life of the brake block can also be prolonged.

Description

Technical Field

[0001] The invention relates to rail transportation technology, in particular to a monorail crane brake cylinder device. Background Art

[0002] A monorail crane is a type of transport equipment that runs on a suspended monorail. It is mainly used for cargo handling and positioning in mines, tunnels, subways, etc. It is mainly composed of an electric motor, a reducer, a pulley block, a traveling mechanism, a suspension device, a control system, and a braking device. Among them, the braking device mainly includes a brake cylinder, a brake arm, and a brake block. In the prior art, the brake block is generally driven by a brake cylinder to press against the track to achieve braking.

[0003] For example, the patent with the authorization announcement number CN117657221B and the authorization announcement date April 9, 2024, and the name of the monorail crane braking system and its braking trolley, belongs to the field of auxiliary transportation and safety technology of mines. A blocking chamber is provided at the bottom of the frame of the braking trolley, and a special cavity with a gradually decreasing caliber is provided in the blocking chamber. The blocking force is formed by inserting the insert into the cavity and squeezing the cavity wall to form a blocking force, thereby realizing the slow blocking of the locomotive. By adopting the braking device braking and the blocking chamber buffer braking, the monorail crane is forcibly blocked, which can reduce the damage to the locomotive and the track caused by forced blocking. The braking system of the present invention adopts a combination of multiple braking trolleys to form a braking group, which can realize continuous blocking of the locomotive, so that the monorail crane can be well braked.

[0004] Another example is a patent with authorization announcement number CN214565299U and authorization announcement date November 2, 2021. The name is a monorail crane drive device. The hydraulic motor in the driving bracket provides the power and braking force for the monorail crane drive device. The driving wheel driven by the hydraulic motor presses the track of the monorail crane guide rail under the action of the clamping force. The friction between the driving wheel and the track provides power for the locomotive to move. At this time, the brake cylinder of the braking device has oil entering the rod chamber, and the brake spring contracts to store energy, the brake pad leaves the track, and the monorail crane drive device can move; conversely, the brake cylinder releases the hydraulic oil, the brake spring stretches by its own elastic force and presses the brake pad against the track, thereby realizing the braking of the monorail crane drive device. The braking performance is strong, which effectively improves the overall stability and safety performance, and improves the overall work efficiency.

[0005] The shortcoming of the prior art is that when braking is performed at a curved portion of the track, the change in the direction of the track will cause the contact area between the brake pad and the track to change, resulting in a phenomenon where one side of the brake pad contacts the track while the other side does not, thereby reducing the contact area between the brake pad and the track, concentrating the braking force, affecting the stability and effect of braking, and may also cause damage to the brake pad. Summary of the invention

[0006] The purpose of the present invention is to provide a monorail crane brake cylinder device to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] The monorail crane brake cylinder device comprises a brake cylinder, both ends of which are rotatably mounted with rocker arms, a brake rod is rotatably mounted on the rocker arms, and a brake block is horizontally rotatably mounted on one end of the brake rod close to the track;

[0009] When the brake block presses the curved part of the track, the brake block and the brake rod rotate relative to each other so that the brake block is inclined and fits on the outer wall of the track.

[0010] The above-mentioned monorail crane brake cylinder device also includes a connecting frame, which is slidably installed on the track, and a mounting piece is fixed on the connecting frame. The middle part of the rocker arm is rotatably installed on the mounting piece. The brake cylinder is located below the connecting frame, and the brake block is located above the connecting frame.

[0011] The above-mentioned monorail crane brake cylinder device, the brake block is a square block structure, and the brake block is arranged vertically.

[0012] In the above-mentioned monorail crane brake cylinder device, the brake block is a circular block structure, and the brake block is arranged vertically.

[0013] The above-mentioned monorail crane brake cylinder device has a limiting cylinder installed on the mounting member through a telescopic block, and the telescopic block can be telescoped in the vertical direction. The brake rod slides through the limiting cylinder on the side close to the track.

[0014] In the above-mentioned monorail crane brake cylinder device, the rocker arm rotates in a certain vertical plane.

[0015] The above-mentioned monorail crane brake cylinder device has a groove on the end of the brake rod close to the track, and a protrusion is formed on the end of the brake block away from the track. A rotating shaft is fixedly connected to the middle of the protrusion, and the rotating shaft rotates through the groove. There is a distance between the end surface of the groove away from the track and the protrusion to ensure that the brake block can rotate.

[0016] The above-mentioned monorail crane brake cylinder device, the brake block includes a first circular part and a second circular part that are rotatably connected.

[0017] In the above-mentioned monorail crane brake cylinder device, the protrusion is formed on the second circular portion, and an annular groove is provided at one end of the second circular portion close to the rail. The central axis of the annular groove coincides with the central axis of the second circular portion, and a limiting portion is formed on the first circular portion. The limiting portion is slidably installed in the annular groove to enable the first circular portion and the second circular portion to be rotationally connected.

[0018] The above-mentioned monorail crane brake cylinder device has a limiting groove running through the middle of the first circular part, an ejection part is slidably installed in the limiting groove, and an installation groove is provided in the middle of the second circular part. The installation groove and the limiting groove are arranged correspondingly, and a limiting spring is connected between the ejection part and the installation groove. In the initial state, the ejection part protrudes out of the limiting groove.

[0019] In the above technical scheme, the present invention provides a monorail crane brake cylinder device, including a brake cylinder, a brake rod and a brake pad. The brake rod and the brake pad are horizontally rotatably connected. When the brake cylinder pushes the brake pad to be squeezed on the curved part of the track, the brake pad will rotate accordingly so that the brake pad fits on the outer wall of the track, thereby avoiding the phenomenon that one side of the brake pad contacts the track while the other side does not contact the track, avoiding uneven force on the brake pad, ensuring the stability and effect of braking, and extending the life of the brake pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a monorail crane brake cylinder device provided in one embodiment of the present invention.

[0022] Figure 2 A partial three-dimensional structural schematic diagram of a monorail crane brake cylinder device provided in one embodiment of the present invention.

[0023] Figure 3 A schematic three-dimensional structural diagram of a brake rod and a brake block provided in another embodiment of the present invention.

[0024] Figure 4 A cross-sectional view of a brake rod and a brake pad provided in accordance with another embodiment of the present invention.

[0025] Figure 5 A cross-sectional view of a brake pad provided in accordance with another embodiment of the present invention.

[0026] Figure 6 An exploded view of a brake pad provided in another embodiment of the present invention.

[0027] Figure 7 For the present invention Figure 6 A local enlarged view of point X.

[0028] Figure 8 A schematic three-dimensional structure diagram of an ejection portion and a limit spring provided in yet another embodiment of the present invention.

[0029] Fig. 9 A top view of a second circular portion provided in yet another embodiment of the present invention.

[0030] Fig.10 For the present invention Fig. 9 A partial enlarged view of point Y.

[0031] Fig.11 A cross-sectional view of a brake pad provided in accordance with another embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Brake cylinder; 2. Rocker arm; 3. Brake rod; 31. Groove; 32. Protrusion; 33. Rotating shaft; 4. Brake block; 41. First circular portion; 411. Limiting groove; 42. Second circular portion; 421. Mounting groove; 422. Fan-shaped block; 423. Connecting spring; 424. Trapezoidal block; 43. Annular groove; 431. Snap-in groove; 432. Snap-in block; 44. Limiting portion; 45. Ejector; 451. Spiral extrusion piece; 452. Square scraper plate; 453. Mounting spring; 454. Support rod groove; 46. Limiting spring; 5. Connecting frame; 51. Mounting piece; 52. Limiting cylinder. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] like Figure 1-11 As shown, the monorail crane brake cylinder device provided by the embodiment of the present invention includes a brake cylinder 1, and rocker arms 2 are rotatably installed at both ends of the brake cylinder 1, and a brake rod 3 is rotatably installed on the rocker arm 2. A brake block 4 is horizontally rotatably installed at one end of the brake rod 3 close to the track; when the brake block 4 squeezes the curved part of the track, the brake block 4 and the brake rod 3 rotate relative to each other so that the brake block 4 is tilted and fits on the outer wall of the track.

[0036] Specifically in the present embodiment, the brake cylinder 1 comprises a cylinder body and a brake spring sleeved on the outside of the cylinder body. The brake cylinder 1 is a power source dedicated to the monorail crane for braking. It is a prior art and will not be described in detail here. The brake cylinder 1 is located below the track. There are two rocker arms 2, which are symmetrically arranged with the track as the center. When the brake cylinder 1 is started, the two rocker arms 2 move synchronously, which can drive the two brake rods 3 to move synchronously towards or away from the track. The upper side of the rocker arm 2 is rotationally connected to the brake rod 3 (the rotational connection is defined as the first connection point), and the lower side of the rocker arm 2 is rotationally connected to the brake cylinder 1 (the rotational connection is defined as the second connection point). In addition, the rocker arm 2 A rotation center is set in the middle position of the whole, and the rocker arm 2 is connected to a connecting frame 5 for rotation with the rotation center as the center point, rather than rotating with the first connection point or the second connection point as the center point. This is for the convenience of braking. In this way, when the brake cylinder 1 is started, the movement directions of the first connection point and the second connection point are actually opposite. The role of the rocker arm 2 here is to transmit the power of the brake cylinder 1 to the brake rod 3; the brake rod 3 is preferably cylindrical, and the movement of the brake rod 3 is a compound of two directions of movement, one is parallel to the extension and contraction direction of the brake cylinder 1 (that is, the horizontal direction), and the other is the movement in the vertical direction. The whole is rotated. The center is the center of the circle; the brake block 4 can be a square block structure or a circular plate structure or a block structure composed of any other polygon, preferably a square block structure, the brake block 4 corresponds to the track, and the brake blocks 4 can contact the track when they are close to each other. The end of the brake block 4 close to the track is provided with a friction layer, and the friction layer is made of wear-resistant metal material, which is not repeated; when braking on the straight part of the track, the brake cylinder 1 is extended to drive the rocker arm 2 to rotate, and the rocker arm 2 drives the brake rod 3 to slide, so that the brake rod 3 pushes the brake block 4 to fit on the flat track surface. At this time, the end of the brake block 4 close to the track is completely in contact with the flat track surface for braking; When braking at a curved position of the track, the brake oil cylinder 1 is extended to drive the rocker arm 2 to rotate, and the rocker arm 2 drives the brake rod 3 to move, so that the brake rod 3 pushes the brake block 4 to contact the curved track surface; there are two situations here. If the brake block 4 contacts the outer curved surface of the track, one side of the brake block 4 contacts the curved track first, and the brake rod 3 continues to move so that the brake block 4 is also tilted and the middle part of the brake block 4 contacts the curved track surface for braking; if the brake block 4 contacts the inner curved surface of the track, the two sides of the brake block 4 successively contact the curved track and tilt at a certain angle. At this time, the two sides of the brake block 4 close to one end of the track are attached to the curved track surface for braking;In this way, when the brake block 4 contacts the outer arc surface of the track, the phenomenon that one side of the brake block 4 contacts the track while the other side does not contact the track can be avoided. When the brake block 4 contacts the inner arc surface of the track, the force on the brake block 4 can be evenly applied, ensuring the stability and effect of the brake and extending the service life of the brake block 4. ;

[0037] In another embodiment provided by the present invention, it also includes a connecting frame 5 (the figure is a schematic diagram of a portion of the connecting frame 5), which is slidably installed on the track, and the connecting frame 5 is located below the track as a whole. The connecting frame 5 is driven by an independent power source to slide on the track. This is the prior art and will not be repeated. A mounting member 51 is fixed on the connecting frame 5, and the mounting member 51 is a plate-like member. The middle part of the rocker arm 2 (the middle position between the first connection point and the second connection point) is rotatably installed on the mounting member 51 through a mounting shaft, and the rocker arm 2 as a whole rotates around the mounting shaft as the rotation center. The brake cylinder 1 is located below the connecting frame 5, and the brake block 4 is located above the connecting frame 5. When the brake cylinder 1 is extended, the two brake blocks 4 will approach each other and contact the track.

[0038] In another embodiment provided by the present invention, the brake block 4 is a square block structure, the brake block 4 is arranged vertically, and the end face of the brake block 4 that contacts the track is a vertical plane, which is convenient for evenly distributing the pressure, and there is a certain distance between the brake block 4 and the upper and lower ends of the track, which is convenient for the brake block 4 to be pressed against the track surface.

[0039] In another embodiment provided by the present invention, the brake block 4 is a circular block structure, and the brake block 4 is arranged vertically. In this embodiment, the end face of the circular brake block 4 that contacts the track is also a vertical plane, and the diameter of the circular brake block 4 is smaller than the height of the track, so that the brake block 4 is pressed against the track surface.

[0040] In another embodiment provided by the present invention, a limiting cylinder 52 is installed on the mounting member 51 through a telescopic block. The telescopic block can be telescoped in the vertical direction to allow the limiting cylinder 52 to move in the vertical direction. The limiting cylinder 52 is a cylindrical component with both ends penetrated. The brake rod 3 slides through the limiting cylinder 52 on the side close to the track. The horizontal movement of the brake rod 3 is limited by the limiting cylinder 52, and the vertical movement of the brake rod 3 is limited by the telescopic block. When the rocker arm 2 moves for braking, the limiting cylinder 52 moves vertically downward to cause the telescopic block to passively contract. At this time, the brake rod 3 still moves horizontally in the limiting cylinder 52 to approach the track. In this way, the compound movement of the brake rod 3 is realized.

[0041] In another embodiment provided by the present invention, the rocker arm 2 is arranged vertically, and the rocker arm 2 only rotates in a certain vertical plane. The plane where the rocker arm 2 moves is perpendicular to the flat track surface. This is to better transmit the braking force of the brake cylinder 1.

[0042] In another embodiment provided by the present invention, a groove 31 is formed at one end of the brake rod 3 close to the track, and a protrusion 32 is formed at one end of the brake block 4 away from the track, and a rotating shaft 33 is fixedly connected to the middle of the protrusion 32. The rotating shaft 33 is vertically arranged, and the rotating shaft 33 rotates through the upper and lower ends of the groove 31. In this way, the protrusion 32 and the brake block 4 can only rotate in the horizontal direction. There is a gap between the end surface of the groove 31 away from the track and the protrusion 32 to ensure that the brake block 4 can rotate, thereby ensuring that the brake block 4 can rotate on the horizontal plane at a certain angle.

[0043] In another embodiment provided by the present invention, refer to Figure 3-Figure 6 The brake block 4 includes a first circular portion 41 and a second circular portion 42 which are rotatably connected. The first circular portion 41 and the second circular portion 42 are both circular block structures. In this embodiment, the diameters of the first circular portion 41 and the second circular portion 42 are the same, and the first circular portion 41 and the second circular portion 42 are fitted together; the raised portion 32 is formed on the second circular portion 42, and an annular groove 43 is provided at one end of the second circular portion 42 close to the track. The central axis of the annular groove 43 coincides with the central axis of the second circular portion 42. A limiting portion 44 is formed on the first circular portion 41, and the limiting portion 44 is slidably installed in the annular groove 43 to enable the first circular portion 41 and the second circular portion 42 to be rotatably connected; in this embodiment, the first circular portion 41 is the portion in contact with the track surface, which can rotate freely, that is, the movement of the first circular portion 41 can be a horizontal rotation of a certain angle around the rotating shaft 33. , or it can rotate as a whole around the central axis of the second circular portion 42; for ease of description, the forward direction of the connecting frame 5 is defined as the front, and the backward direction of the connecting frame 5 is defined as the rear, and the end surface of the first circular portion 41 that contacts the track is defined as the contact surface, and when the brake block 4 brakes the outer arc surface of the track, the front and rear sides of the contact surface are the positions with the most serious wear, which is due to the movement direction of the connecting frame 5. Therefore, after the first circular portion 41 has been working for a long time, the first circular portion 41 can be driven to rotate at a certain angle manually or by other driving methods (a certain angle of natural rotation may also occur during the daily work of the first circular portion 41). In this way, different positions of the contact surface can be in contact and friction with the track, so that the degree of wear on the first circular portion 41 can be close, thereby ensuring the braking effect and extending the service life of the first circular portion 41; similarly, when braking at a curve, more concentrated wear on the first circular portion 41 can be avoided.

[0044] In another embodiment provided by the present invention, refer to Figure 4-Figure 6A limiting groove 411 is provided in the middle of the first circular portion 41, and the limiting groove 411 is arranged horizontally. The limiting groove 411 consists of a circular groove and two square grooves. The two square grooves are relatively arranged on the groove wall of the circular groove. An ejection portion 45 is horizontally slidably installed in the limiting groove 411. The ejection portion 45 is a cylindrical structure as a whole. The ejection portion 45 can only slide in the horizontal direction through the combination of the circular groove and the square groove. A mounting groove 421 is provided in the middle of the second circular portion 42. The cross-section of the mounting groove 421 is circular. The mounting groove 421 and the limiting groove 411 are correspondingly arranged. The sum of the lengths of the mounting groove 421 and the limiting groove 411 is greater than the length of the ejection portion 45. The central axis coincides, and the mounting groove 421 and the limiting groove 411 together constitute a movable groove. A limiting spring 46 is connected between the ejection portion 45 and an end face of the mounting groove 421 away from the track. In the initial state, under the elastic action of the limiting spring 46, the ejection portion 45 protrudes out of the limiting groove 411; when the brake block 4 brakes the outer arc surface of the track, the ejection portion 45 first contacts the track, and the brake block 4 continues to move, so that the ejection portion 45 slides and shrinks into the limiting groove 411. At this time, the limiting spring 46 is also squeezed. When the ejection portion 45 is completely retracted into the movable groove, the end of the ejection portion 45 close to the track is flush with the contact surface. In this way, the braking process is buffered to a certain extent by the limiting spring 46.

[0045] For further information, see Figure 4-Figure 10Although the first circular portion 41 and the second circular portion 42 are rotatably connected, if the first circular portion 41 is to be rotated, the only way is to wait for the connecting frame 5 to stop moving and then adjust the first circular portion 41 to rotate manually or mechanically. Obviously, the effect is poor, which wastes manpower and material resources, and cannot ensure the angle of each rotation. It also causes the degree of wear of the contact surface to be different, affecting the braking effect. Therefore, this embodiment provides a further solution to solve the above technical problems; it includes a plurality of clamping grooves 431 provided on an end face of the annular groove 43 away from the track, the number of the clamping grooves 431 is preferably four, the clamping grooves 431 are preferably hemispherical and have a certain elasticity, and the plurality of the The snap-fitting grooves 431 are evenly distributed in the circumferential direction with the installation groove 421 as the center, that is, the angle between two adjacent snap-fitting grooves 431 is 90 degrees, and a snap-fitting block 432 is formed on the limiting portion 44, and the snap-fitting block 432 is also preferably hemispherical, and one of the snap-fitting blocks 432 is snapped into one of the snap-fitting grooves 431, and the number of the snap-fitting blocks 432 is preferably four. When the first circular portion 41 rotates 90 degrees, the snap-fitting block 432 pops out from the initial snap-fitting groove 431 and snaps into the new snap-fitting groove 431 after performing a circular motion; a plurality of spiral extrusions 451 are evenly installed in the circumferential direction on one side of the side wall of the ejection portion 45 away from the track, and the number of the spiral extrusions 451 is preferably four The spiral extrusion piece 451 is a rib-shaped component with a spiral structure, and each spiral extrusion piece 451 occupies an angle of 90 degrees. The end of the spiral extrusion piece 451 away from the track is defined as the first end, and the end of the spiral extrusion piece 451 close to the track is defined as the second end; a fan-shaped block 422 is formed on the inner wall of the mounting groove 421, and a receiving groove is formed on the fan-shaped block 422. A trapezoidal block 424 is installed in the receiving groove through a connecting spring 423. The end of the trapezoidal block 424 located outside the receiving groove and away from the track is an inclined surface, and the end of the trapezoidal block 424 close to the track is a plane. The trapezoidal block 424 and the spiral extrusion piece 451 are arranged in a corresponding manner. When the ejection When the part 45 is squeezed and contracted, the trapezoidal block 424 first contacts with the first end of one of the spiral extrusion parts 451. In the initial state, there is a certain distance between the trapezoidal block 424 and the first end. The purpose of designing the slidable trapezoidal block 424 is that when the plane on the trapezoidal block 424 contacts with the first end (when the ejection part 45 contracts into the movable groove), the spiral extrusion part 451 can be squeezed to rotate. When the inclined surface on the trapezoidal block 424 contacts with the next adjacent first end (that is, when the ejection part 45 extends out of the movable groove to reset), the trapezoidal block 424 can shrink into the accommodating groove to prevent the trapezoidal block 424 from blocking the ejection part 45 from resetting. Specific analysis is required here in combination with specific movements.Specifically, in a complete braking process, the working stroke of the ejector 45 is divided into a pre-compression stroke, a rotation stroke and a reset stroke; during the pre-compression stroke, the brake block 4 moves in the direction close to the track, the ejector 45 is squeezed by the track and moves into the movable groove, and the braking process is buffered to a certain extent by the limit spring 46; during the rotation stroke, after the ejector 45 moves a certain distance, the trapezoidal block 424 begins to contact the first end of one of the spiral extrusions 451, and the ejector 45 continues to move. At this time, the plane on the trapezoidal block 424 contacts and squeezes the spiral extrusion 451. The ejector 45 also moves with the spiral extrusion member 451. Since the ejector 45 is slidably installed in the limiting groove 411 and the first circular portion 41 and the second circular portion 42 are rotatably connected, the movement of the spiral extrusion member 451 drives the ejector 45 and the first circular portion 41 to rotate synchronously. At this time, the clamping block 432 also pops out from the initial clamping groove 431 and performs an annular movement. The ejector 45 continues to shrink. When the ejector 45 is completely shrunk into the movable groove, the first circular portion 41 rotates 90 degrees, and the plane of the trapezoidal block 424 is aligned with the spiral extrusion member 451. The second end of the spiral extrusion piece 451 contacts, that is, before braking, the first circular portion 41 is rotated 90 degrees, but at this time, it is particularly important to note that the plane of the trapezoidal block 424 will extend out of the end of the second end; during the reset stroke, when the braking is completed, the brake block 4 moves away from the track, and the ejection portion 45 extends out of the movable groove under the elastic action of the limit spring 46. At this time, the spiral extrusion piece 451 gradually separates from the trapezoidal block 424, and the inclined surface of the trapezoidal block 424 contacts the first end of the adjacent next spiral extrusion piece 451, and the adjacent next The spiral extrusion piece 451 squeezes the inclined surface of the trapezoidal block 424, so that the trapezoidal block 424 moves into the accommodating groove and squeezes the connecting spring 423. In this way, the trapezoidal block 424 can be reset to the bottom of the next adjacent spiral extrusion piece 451, avoiding the trapezoidal block 424 from being blocked by the spiral extrusion piece 451 when being reset, and facilitating the next braking. Through the above technical solution, during each braking, the first circular portion 41 can be passively rotated 90 degrees to ensure the angle of each rotation, so that the wear on the contact surface is evenly distributed, thereby ensuring the braking effect.

[0046] Especially for braking on a curve, when the brake block 4 brakes the outer arc surface of the track, the movement of the first circular portion 41 is a combination of rotation on the horizontal plane and rotation on the vertical plane. The contact position between the first circular portion 41 and the track is close to the middle of the first circular portion 41 and is vertically arranged. The contact position between the first circular portion 41 and the track is concentrated. By rotating the first circular portion 41 during each braking, the friction braking area of ​​the first circular portion 41 can be expanded to ensure the braking effect and extend the service life of the first circular portion 41.

[0047] Further, see Fig.11, support rods are fixed at both the front and rear ends of the ejection portion 45 close to the track, the length of the support rod is greater than the radius of the first circular portion 41, and a square scraper plate 452 is horizontally slidably installed at one end of the support rod away from the ejection portion 45, and the length of the side of the square scraper plate 452 in contact with the track is greater than the diameter of the first circular portion 41, and a mounting spring 453 is connected between the square scraper plate 452 and the support rod, and a support rod groove 454 is provided at one end of the first circular portion 41 close to the track, and the support rod groove 454 is used to accommodate the support rod, so that the end surface of the first circular portion 41 close to the track can maintain a complete plane during braking, and the distance between the square scraper plate 452 and the track is smaller than the distance between the ejection portion 45 and the track, that is, when making When moving, the square scraper plate 452 first contacts the track; when braking, the brake block 4 approaches the track. At this time, the square scraper plate 452 first contacts the track surface and is squeezed, and the mounting spring 453 is also stretched synchronously. The mounting spring 453 allows the square scraper plate 452 to be pressed against the track surface, and the square scraper plate 452 scrapes off the granular waste that may remain on the track surface, thereby preventing the granular waste remaining on the track surface from affecting the braking effect of the first circular portion 41; of course, during the rotation stroke, the square scraper plate 452 will rotate. At this time, a plurality of circumferentially evenly arranged square scraper plates 452 (preferably four) can be set to ensure that the square scraper plate 452 can always play a role in removing waste, which will not be repeated here.

[0048] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A monorail crane brake cylinder device, comprising a brake cylinder, both ends of which are rotatably mounted with rocker arms, and a brake rod is rotatably mounted on the rocker arms, characterized in that: A brake block is installed on one end of the brake rod close to the track for horizontal rotation; When the brake block presses the curved part of the track, the brake block and the brake rod rotate relative to each other so that the brake block is inclined and fits on the outer wall of the track.

2. The monorail crane brake cylinder device according to claim 1, characterized in that: It also includes a connecting frame, which is slidably installed on the track, a mounting piece is fixed on the connecting frame, the middle part of the rocker arm is rotatably installed on the mounting piece, the brake cylinder is located below the connecting frame, and the brake block is located above the connecting frame.

3. The monorail crane brake cylinder device according to claim 2, characterized in that: The brake block is a square block structure and is arranged vertically.

4. The monorail crane brake cylinder device according to claim 2, characterized in that: The brake block is a circular block structure and is arranged vertically.

5. The monorail crane brake cylinder device according to claim 3 or 4, characterized in that: A limiting cylinder is installed on the mounting member via a telescopic block, and the telescopic block can be telescoped in a vertical direction. The brake rod slides through the limiting cylinder on a side close to the track.

6. The monorail crane brake cylinder device according to claim 1, characterized in that: The rocker arm rotates in a vertical plane.

7. The monorail crane brake cylinder device according to claim 5, characterized in that: A groove is formed at one end of the brake rod close to the track, and a protrusion is formed at the end of the brake block away from the track. A rotating shaft is fixedly connected to the middle of the protrusion, and the rotating shaft rotates through the groove. There is a distance between the end surface of the groove away from the track and the protrusion to ensure that the brake block can rotate.

8. The monorail crane brake cylinder device according to claim 7, characterized in that: The brake block includes a first circular portion and a second circular portion that are rotatably connected.

9. The monorail crane brake cylinder device according to claim 8, characterized in that: The raised portion is formed on the second circular portion, and an annular groove is formed at one end of the second circular portion close to the track. The central axis of the annular groove coincides with the central axis of the second circular portion. A limiting portion is formed on the first circular portion, and the limiting portion is slidably installed in the annular groove to enable the first circular portion and the second circular portion to be rotationally connected.

10. The monorail crane brake cylinder device according to claim 9, characterized in that: A limiting groove is formed through the middle of the first circular portion, and an ejection portion is slidably installed in the limiting groove. A mounting groove is formed in the middle of the second circular portion, and the mounting groove and the limiting groove are correspondingly arranged. A limiting spring is connected between the ejection portion and the mounting groove. In the initial state, the ejection portion protrudes out of the limiting groove.

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