Accessory dismounting device for lever drum brake of elevator traction machine

Abstract

The utility model relates to the technical field of elevator assembly, in particular to an elevator traction machine lever drum brake accessory dismounting device which comprises a boss fixing disc, a fixing rod, a shaft fixing disc, a telescopic hydraulic cylinder, a pull rod and a hydraulic cylinder fixing disc. The shaft fixing disc and the boss fixing disc are connected through the fixing rods, the number of the fixing rods is multiple, and the shaft fixing disc and the boss fixing disc are matched to limit the brake arm. The multiple pull rods are circumferentially distributed around the central axis of the telescopic hydraulic cylinder, one end of each pull rod is fixed to the shaft fixing disc, and the other end of each pull rod is fixed to the hydraulic cylinder fixing disc. An abutting part is arranged on the telescopic hydraulic cylinder, the telescopic hydraulic cylinder is used for changing the distance between the abutting part and the bottom of the telescopic hydraulic cylinder after stretching out and drawing back, and the abutting part is used for abutting against the brake fixing shaft. According to the dismounting device, the efficiency of dismounting the brake arm is greatly improved, the labor cost is saved, and the mounting and maintenance efficiency of an elevator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator assembly, in particular to a device for disassembling accessories of a lever drum brake of an elevator traction machine. Background Art

[0002] The elevator traction machine is the power equipment of the elevator, which makes the elevator run by conveying and transmitting power. Among them, the elevator traction machine includes a motor, brake, coupling, reduction gearbox, traction machine and other mechanisms.

[0003] For example, the traction machine disclosed in the Chinese patent with application number CN202122512175.9 and invention name "A high-speed and large-load permanent magnet synchronous traction machine" includes a traction machine case, a support cap, a limit rod and a traction wheel. The traction wheel is installed inside the traction machine case, and brake arc arms are installed inside the traction machine case on both sides of the traction wheel. The bottom end of the brake arc arm is installed with a hinge shaft, and the brake arc arm is movably connected to the traction machine case through the hinge shaft. The top of the brake arc arm is installed with a brake arm frame, and the bottom end of the brake arm frame is fixedly connected to the brake arc arm. An electromagnet assembly is installed inside the traction machine case above the traction wheel, and the bottom end of the electromagnet assembly is fixedly connected to the traction machine case. A driving rod is provided inside the brake arm frame.

[0004] Although the above-mentioned traction machine achieves efficient and stable braking of the traction machine and improves the reliability of the traction machine during braking, the inventors found that the current traction machine still has shortcomings when repairing and maintaining the traction machine, specifically:

[0005] In a traction machine such as the one described above, the brake arm is movably connected to the traction machine case through an articulated shaft. When the brake arm is disassembled, it is usually necessary to separate the brake arm from the articulated shaft. Currently, during the disassembly process, manual disassembly is usually performed manually, where the brake arm is directly pulled off the articulated shaft. This makes manual disassembly time-consuming and labor-intensive, and is not conducive to improving disassembly efficiency.

[0006] Therefore, based on the above-mentioned shortcomings, there is an urgent need to design an elevator traction machine lever drum brake accessories disassembly device to improve the disassembly efficiency of the brake arm. Summary of the Invention

[0007] The purpose of the utility model is to propose a device for disassembling accessories of a lever drum brake of an elevator traction machine in view of the problem that it is difficult to disassemble the brake arm of the lever drum brake of the elevator traction machine.

[0008] In order to achieve the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

[0009] An elevator traction machine lever drum brake accessory disassembly device includes a boss fixing plate, a fixing rod, a shaft fixing plate, a telescopic hydraulic cylinder, a pull rod, and a hydraulic cylinder fixing plate; the shaft fixing plate and the boss fixing plate are connected by the fixing rod, and the fixing rods are multiple, and the shaft fixing plate and the boss fixing plate cooperate to limit the brake arm; the pull rods are multiple, and the multiple pull rods are distributed in a circle around the central axis of the telescopic hydraulic cylinder, one end of each pull rod is fixed to the shaft fixing plate, and the other end is fixed to the hydraulic cylinder fixing plate;

[0010] The telescopic hydraulic cylinder is provided with an abutment portion, which is used to change the distance between the abutment portion and the bottom of the telescopic hydraulic cylinder after the telescopic hydraulic cylinder is extended and retracted, and the abutment portion is used to abut against the brake fixed shaft.

[0011] As the preferred technical solution of this application, the boss fixing plate is formed by splicing two boss fixing sub-plates; the boss fixing plate is provided with a boss through-hole, a plurality of boss fixing plate fixing through-holes, two first rectangular pads, a plurality of first splicing threaded holes and a first arc-shaped pad;

[0012] The plurality of fixing through holes of the boss fixing plate are used to cooperate with the fixing rod;

[0013] The two first rectangular pads and one first arc-shaped pad are both provided with first splicing through holes; the first splicing threaded holes are symmetrically arranged on both sides of the splicing line of the boss fixing plate, and bolts are passed through the first splicing through holes and threadedly engaged with the first splicing threaded holes to splice the two boss fixing sub-plates.

[0014] As the preferred technical solution of this application, the shaft fixing plate is composed of two shaft fixing sub-plates spliced ​​together; the shaft fixing plate is provided with a plurality of second splicing threaded holes, two second rectangular pads, a plurality of shaft fixing plate fixing through holes, a plurality of tie rod connection threaded holes, a second arc-shaped pad and a shaft through hole;

[0015] Several second splicing threaded holes are symmetrically arranged on both sides of the splicing line of the shaft fixing disk; second splicing through holes are distributed on the two second rectangular pads and the second arc-shaped pads, and bolts are used to pass through the second splicing through holes and threadedly engage with the second splicing threaded holes to splice the shaft fixing sub-disc; several shaft fixing disk fixing through holes are arranged with clearances fitted with the fixing rod; several pull rod connecting threaded holes are circumferentially distributed on the shaft fixing disk with the center of the shaft through hole as the reference point, and the pull rod is threadedly connected to the shaft fixing disk through the pull rod connecting threaded hole, and the diameter of the shaft through hole is the same as the shaft diameter of the brake fixing shaft away from the traction machine.

[0016] As the preferred technical solution of this application, both ends of the fixing rod are provided with external threads; the fixing rod passes through the fixing through hole of the boss fixing plate and the fixing through hole of the shaft fixing plate, so that one end of the fixing rod extends out of the shaft fixing plate, and the other end of the fixing rod extends out of the boss fixing plate, and both ends of the fixing rod are adapted with nuts to limit the boss fixing plate and the shaft fixing plate.

[0017] As the preferred technical solution of this application, after the fixing rod is matched with the boss fixing plate and the shaft fixing plate, the distance between the boss fixing plate and the shaft fixing plate is adjustable, and the distance between the boss fixing plate and the shaft fixing plate is d1-d2, and the thickness of the adapted brake arm is d3, d1<d3<d2.

[0018] As the preferred technical solution of this application, the telescopic hydraulic cylinder is provided with a plurality of fixed threaded holes; a plurality of countersunk holes are provided on the circumference of the hydraulic cylinder fixing plate, and the countersunk holes are coaxially matched with the fixed threaded holes; bolts are used to pass through the gasket and the countersunk holes to fix the telescopic hydraulic cylinder to the hydraulic cylinder fixing plate.

[0019] As the priority technical solution of this application, the number of the pull rods is 4; both ends of the pull rods are respectively provided with external threads, and the hydraulic cylinder fixing plate is provided with a through hole, which is adapted to the pull rods, and one end of the pull rods is threadedly engaged with the pull rod connecting threaded hole on the shaft fixing plate, and the other end passes through the through hole on the hydraulic cylinder fixing plate and is fixed by a nut.

[0020] As a preferred technical solution of the present application, at least one of the fixing rods passes through a hole on the brake arm.

[0021] As a preferred technical solution of the present application, a first elastic layer is provided on the side of the boss fixing plate facing the shaft fixing plate, the first elastic layer is elastic, and the first elastic layer covers the surface of the boss fixing plate;

[0022] A second elastic layer is provided on a side of the shaft fixing disk facing the boss fixing disk. The second elastic layer has elasticity and covers the surface of the shaft fixing disk.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the solution of the present application, the brake arm is limited by using a shaft fixing plate and a boss fixing plate. By controlling the extension and retraction of the telescopic hydraulic cylinder, the distance between the abutment portion and the bottom of the telescopic hydraulic cylinder changes. As a result, when the hydraulic rod on the telescopic hydraulic cylinder is extended, the abutment portion abuts against the brake fixing shaft, causing the brake fixing shaft, pushed by the abutment portion, to move relative to the brake arm. As a result, the brake arm can be pulled off the brake fixing shaft on the traction machine under the action of the disassembly device. Compared with manual disassembly, this disassembly device greatly improves the efficiency of disassembling the brake arm, saves labor costs, and improves the installation and maintenance efficiency of the elevator.

[0025] 2. Further, d1 < d3 < d2 is made, and the distance between the boss fixing plate and the shaft fixing plate is adjusted by adjusting the fixing rod and the nut matched therewith, so that after the boss fixing plate and the shaft fixing plate are installed on both sides of the brake arm, the boss fixing plate and the shaft fixing plate can squeeze and clamp the brake arm together; or a gap is made between the shaft fixing plate and the brake arm, so that the limiting structure formed by the boss fixing plate and the shaft fixing plate and the brake arm are in a non-clamped state; when the boss fixing plate and the shaft fixing plate squeeze and clamp the brake arm together, so that the limiting structure formed by the boss fixing plate and the shaft fixing plate and the brake arm are in a clamped state, and the central axis of the telescopic hydraulic cylinder is parallel to or coincides with the central axis of the brake fixed shaft, it is conducive to extending the telescopic hydraulic cylinder, so that the abutting part pushes the brake fixed shaft, so that the brake arm is convenient to move relative to the brake fixed shaft. In this process, the working stability of the telescopic hydraulic cylinder and the stability of the brake arm being limited are improved;

[0026] If the limiting structure formed by the boss fixing plate and the shaft fixing plate is in a clamped state with the brake arm, and the central axis of the telescopic hydraulic cylinder is not parallel to the central axis of the brake fixed shaft, if the telescopic hydraulic cylinder is driven to extend, the movement direction of the abutment portion is inconsistent with the direction of the central axis of the brake fixed shaft, which is not conducive to the movement of the brake arm relative to the brake fixed shaft. In this case, by making the limiting structure formed by the boss fixing plate and the shaft fixing plate and the brake arm in a non-clamped state, it is convenient to adjust the positional relationship between the central axis of the telescopic hydraulic cylinder and the central axis of the brake fixed shaft, so as to make the movement direction of the abutment portion tend to or approach the direction of the central axis of the brake fixed shaft, so as to make the brake arm move relative to the brake fixed shaft;

[0027] 3. Furthermore, by providing a first elastic layer and a second elastic layer, when the boss fixing plate and the shaft fixing plate limit the brake arm, the first elastic layer and the second elastic layer can be placed in an extruded state. The deformation of the first elastic layer and the second elastic layer is conducive to making the central axis of the telescopic hydraulic cylinder coincide with or be parallel to the central axis of the brake fixing shaft, and at the same time, can further improve the stability of the positional relationship between the brake arm and the disassembly device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of one embodiment of a device for disassembling an elevator traction machine lever drum brake accessory according to the present application;

[0029] Figure 2 This is a schematic structural diagram of a disassembly device for a lever drum brake accessory of an elevator traction machine in one embodiment of the present application, when the disassembly device cooperates with the traction machine;

[0030] Figure 3 This is a schematic diagram of the exploded structure of one embodiment of a device for removing an elevator traction machine lever drum brake accessory according to the present application;

[0031] Figure 4 This is a schematic diagram of the partial structure of the telescopic hydraulic cylinder of one embodiment of the elevator traction machine lever drum brake accessory removal device of the present application;

[0032] Figure 5 This is a schematic diagram of the partial structure of one embodiment of a device for disassembling an elevator traction machine lever drum brake accessory located at the boss fixing plate and the shaft fixing plate;

[0033] Markings in the figure: 1-boss fixing plate, 2-fixing rod, 3-shaft fixing plate, 4-telescopic hydraulic cylinder, 5-pull rod, 6-hydraulic cylinder fixing plate, 7-brake arm, 8-abutment part, 9-brake fixing shaft, 10-traction machine, 11-boss through hole, 12-boss fixing plate fixing through hole, 13-first rectangular pad, 14-first splicing threaded hole, 15-first arc pad, 16-first splicing through hole, 17-second splicing threaded hole, 18-second rectangular pad, 19-shaft fixing plate fixing through hole, 20-pull rod connecting threaded hole, 21-second arc pad, 22-shaft through hole, 23-second splicing through hole, 24-fixing threaded hole, 25-flattening hole, 26-gasket, 27-through hole, 28-first elastic layer, 29-second elastic layer. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0035] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0038] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0039] Example 1: See Figure 1 As shown,

[0040] This embodiment provides a device for removing a lever drum brake accessory for an elevator traction machine 10, comprising a boss fixing plate 1, a fixing rod 2, a shaft fixing plate 3, a telescopic hydraulic cylinder 4, a pull rod 5, and a hydraulic cylinder fixing plate 6; the shaft fixing plate 3 and the boss fixing plate 1 are connected by the fixing rod 2, and the fixing rods 2 are multiple, and the shaft fixing plate 3 and the boss fixing plate 1 cooperate to limit the brake arm 7; the pull rods 5 are multiple, and the multiple pull rods 5 are distributed in a circle around the central axis of the telescopic hydraulic cylinder 4, with one end of the pull rod 5 fixed to the shaft fixing plate 3 and the other end fixed to the hydraulic cylinder fixing plate 6;

[0041] The telescopic hydraulic cylinder 4 is provided with an abutment portion 8 , which is used to change the distance between the abutment portion 8 and the bottom of the telescopic hydraulic cylinder 4 after the telescopic hydraulic cylinder 4 is extended or retracted. The abutment portion 8 is used to abut against the brake fixed shaft 9 .

[0042] In the present application, the brake arm 7 is limited by using the shaft fixing plate 3 and the boss fixing plate 1, and by controlling the extension and contraction of the telescopic hydraulic cylinder 4, the distance between the abutment 8 and the bottom of the telescopic hydraulic cylinder 4 is changed, so that when the hydraulic rod on the telescopic hydraulic cylinder 4 is extended, the abutment 8 is abutted against the brake fixed shaft 9, and the brake fixed shaft 9 pushed by the abutment 8 can move relative to the brake arm 7, so that under the action of the disassembly device, the brake arm 7 can be pulled down from the brake fixed shaft 9 on the traction machine 10. Compared with manual disassembly, the disassembly device set up in this way greatly improves the efficiency of disassembling the brake arm 7, and also saves labor costs, thereby improving the installation and maintenance efficiency of the elevator.

[0043] As a preferred embodiment, based on the above method, further, the boss fixing plate 1 is formed by splicing two boss fixing sub-plates; the boss fixing plate 1 is provided with a boss through hole 11, a plurality of boss fixing plate fixing through holes 12, two first rectangular pads 13, a plurality of first splicing threaded holes 14 and a first arc-shaped pad 15;

[0044] The plurality of boss fixing plate fixing through holes 12 are used to cooperate with the fixing rod 2;

[0045] The two first rectangular pads 13 and the first arc-shaped pad 15 are both provided with first splicing through holes 16; the first splicing threaded holes 14 are symmetrically arranged on both sides of the splicing line of the boss fixing plate 1, and bolts are passed through the first splicing through holes 16 and threadedly engaged with the first splicing threaded holes 14 to splice the two boss fixing sub-disks.

[0046] Furthermore, the boss fixing plate 1 is formed by splicing two boss fixing sub-plates, wherein the boss through hole 11 is separated by the two boss fixing sub-plates, so that the portion of the boss through hole 11 located on any one of the boss fixing sub-plates is arc-shaped. After the two boss fixing sub-plates are spliced ​​together, the two arc-shaped portions of the boss through holes 11 form a complete boss through hole 11 structure. In this way, when the boss fixing plate 1 is matched with the brake arm 7, by adopting a splicing method, it is convenient to locate the brake fixing shaft 9 in the boss through hole 11, which can improve the convenience of the boss fixing plate 1 and the brake arm 7 in matching.

[0047] As a preferred embodiment, based on the above method, further, the shaft fixing plate 3 is formed by splicing two shaft fixing sub-plates; the shaft fixing plate 3 is provided with a plurality of second splicing threaded holes 17, two second rectangular pads 18, a plurality of shaft fixing plate fixing through holes 19, a plurality of tie rod connecting threaded holes 20, a second arc-shaped pad 21 and a shaft through hole 22;

[0048] Several second splicing threaded holes 17 are symmetrically arranged on both sides of the splicing line of the shaft fixing plate 3; second splicing through holes 23 are distributed on the two second rectangular pads 18 and the second arc-shaped pads 21, and bolts are used to pass through the second splicing through holes 23 and threadedly engage with the second splicing threaded holes 17 to splice the shaft fixing sub-disks; several shaft fixing plate fixing through holes 19 are arranged with clearance fit with the fixing rod 2; several pull rod connecting threaded holes 20 are distributed on the shaft fixing plate 3 with the center of the shaft through hole 22 as the reference point, and the pull rod 5 is threadedly connected to the shaft fixing plate 3 through the pull rod connecting threaded hole 20, and the diameter of the shaft through hole 22 is the same as the shaft diameter of the brake fixing shaft 9 away from the traction machine 10.

[0049] Furthermore, the shaft fixing plate 3 is formed by splicing two shaft fixing sub-plates. During the process of installing the disassembly device on the brake arm 7, a single boss fixing sub-plate can be connected to a single shaft fixing sub-plate in advance, and this structure can be installed on both sides of the brake arm 7. The remaining boss fixing sub-plates and shaft fixing sub-plates are then spliced ​​onto this structure. This can improve the convenience of the entire boss fixing plate 1 and the shaft fixing plate 3 being matched on the brake arm 7, making the disassembly and assembly of the disassembly device of the present application more convenient.

[0050] As a preferred embodiment, on the basis of the above method, further, both ends of the fixing rod 2 are provided with external threads; the fixing rod 2 passes through the boss fixing plate fixing hole 12 and the shaft fixing plate fixing hole 19, so that one end of the fixing rod 2 extends out of the shaft fixing plate 3, and the other end of the fixing rod 2 extends out of the boss fixing plate 1, and both ends of the fixing rod 2 are adapted with nuts to limit the boss fixing plate 1 and the shaft fixing plate 3.

[0051] Furthermore, nuts are adapted at both ends of the fixing rod 2 , thereby improving the stability when limiting the boss fixing plate 1 and the shaft fixing plate 3 .

[0052] As a preferred embodiment, on the basis of the above method, further, after the fixing rod 2 is matched with the boss fixing plate 1 and the shaft fixing plate 3, the distance between the boss fixing plate 1 and the shaft fixing plate 3 is adjustable, and the distance between the boss fixing plate 1 and the shaft fixing plate 3 is d1-d2, and the thickness of the adapted brake arm 7 is d3, d1<d3<d2.

[0053] Furthermore, d1 < d3 < d2 is made, and the distance between the boss fixing plate 1 and the shaft fixing plate 3 is adjusted by adjusting the fixing rod 2 and the nut matched therewith, so that after the boss fixing plate 1 and the shaft fixing plate 3 are installed on both sides of the brake arm 7, the boss fixing plate 1 and the shaft fixing plate 3 can squeeze and clamp the brake arm 7 together; or a gap is made between the shaft fixing plate 3 and the brake arm 7, so that the limiting structure formed by the boss fixing plate 1 and the shaft fixing plate 3 and the brake arm 7 are in a non-clamping state; The platform fixing plate 1 and the shaft fixing plate 3 together squeeze and clamp the brake arm 7, so that when the limiting structure formed by the boss fixing plate 1 and the shaft fixing plate 3 and the brake arm 7 are in a clamped state, and the central axis of the telescopic hydraulic cylinder 4 is parallel to or coincides with the central axis of the brake fixed shaft 9, the telescopic hydraulic cylinder 4 is facilitated to extend, so that the abutment portion 8 pushes the brake fixed shaft 9, making it easier for the brake arm 7 to move relative to the brake fixed shaft 9. In this process, the working stability of the telescopic hydraulic cylinder 4 and the stability of the brake arm 7 being limited are improved;

[0054] If the limiting structure formed by the boss fixing plate 1 and the shaft fixing plate 3 is in a clamping state with the brake arm 7, and the center axis of the telescopic hydraulic cylinder 4 is not parallel to the center axis of the brake fixed shaft 9, if the telescopic hydraulic cylinder 4 is driven to extend, the movement direction of the abutment 8 is inconsistent with the center axis direction of the brake fixed shaft 9, which is not conducive to the movement of the brake arm 7 relative to the brake fixed shaft 9. In this case, by making the limiting structure formed by the boss fixing plate 1 and the shaft fixing plate 3 and the brake arm 7 in a non-clamping state, it is convenient to adjust the positional relationship between the center axis of the telescopic hydraulic cylinder 4 and the center axis of the brake fixed shaft 9, so as to make the movement direction of the abutment 8 tend to or approach the center axis direction of the brake fixed shaft 9, so as to make the brake arm 7 move relative to the brake fixed shaft 9.

[0055] Example 2: See Figure 2 As shown,

[0056] In the technical solution of embodiment 1, further, a plurality of fixed threaded holes 24 are provided on the telescopic hydraulic cylinder 4; a plurality of countersunk holes 25 are provided on the circumference of the hydraulic cylinder fixing plate 6, and the countersunk holes 25 are coaxially matched with the fixed threaded holes 24; bolts are used to pass through the gasket 26 and the countersunk holes 25 to fix the telescopic hydraulic cylinder 4 and the hydraulic cylinder fixing plate 6.

[0057] As a preferred embodiment, on the basis of the above method, further, the number of the pull rods 5 is 4; both ends of the pull rods 5 are respectively provided with external threads, and the hydraulic cylinder fixing plate 6 is provided with a through hole 27, and the through hole 27 is adapted to the pull rod 5, and one end of the pull rod 5 is threadedly engaged with the pull rod connecting threaded hole 20 on the shaft fixing plate 3, and the other end passes through the through hole 27 on the hydraulic cylinder fixing plate 6 and is fixed by a nut.

[0058] As a preferred embodiment, based on the above manner, further, at least one of the fixing rods 2 passes through the hole on the brake arm 7 .

[0059] Furthermore, a plurality of holes are provided on the structure of the brake arm 7 itself, so that at least one fixing rod 2 passes through the hole on the brake arm 7. In this way, when the boss fixing plate 1, the fixing rod 2 and the shaft fixing plate 3 limit the brake arm 7, the brake arm 7 can be prevented from being separated from the disassembly device, thereby improving the stability of the brake arm 7 being limited.

[0060] As a preferred embodiment, based on the above embodiment, a first elastic layer 28 is further provided on the side of the boss fixing plate 1 facing the shaft fixing plate 3. The first elastic layer 28 has elasticity and covers the surface of the boss fixing plate 1.

[0061] A second elastic layer 29 is provided on a side of the shaft fixing disk 3 facing the boss fixing disk 1 . The second elastic layer 29 has elasticity and covers the surface of the shaft fixing disk 3 .

[0062] Furthermore, by providing the first elastic layer 28 and the second elastic layer 29, when the boss fixing plate 1 and the shaft fixing plate 3 limit the brake arm 7, the first elastic layer 28 and the second elastic layer 29 can be in an extruded state. The deformation of the first elastic layer 28 and the second elastic layer 29 is conducive to making the central axis of the telescopic hydraulic cylinder 4 coincide with or be parallel to the central axis of the brake fixing shaft 9, and at the same time can further improve the stability of the positional relationship between the brake arm 7 and the disassembly device.

[0063] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An elevator traction machine lever drum brake accessories disassembly device, characterized in that: It includes a boss fixing plate, a fixing rod, a shaft fixing plate, a telescopic hydraulic cylinder, a pull rod and a hydraulic cylinder fixing plate; the shaft fixing plate and the boss fixing plate are connected by the fixing rod, and there are multiple fixing rods. The shaft fixing plate and the boss fixing plate cooperate to limit the brake arm; there are multiple pull rods, and the multiple pull rods are distributed in a circle around the central axis of the telescopic hydraulic cylinder, one end of the pull rod is fixed to the shaft fixing plate, and the other end is fixed to the hydraulic cylinder fixing plate; The telescopic hydraulic cylinder is provided with an abutment portion, which is used to change the distance between the abutment portion and the bottom of the telescopic hydraulic cylinder after the telescopic hydraulic cylinder is extended and retracted, and the abutment portion is used to abut against the brake fixed shaft.

2. The elevator traction machine lever drum brake accessory disassembly device according to claim 1, characterized in that: The boss fixing plate is formed by splicing two boss fixing sub-plates; the boss fixing plate is provided with a boss through hole, a plurality of boss fixing plate fixing through holes, two first rectangular pads, a plurality of first splicing threaded holes and a first arc-shaped pad; The plurality of fixing through holes of the boss fixing plate are used to cooperate with the fixing rod; The two first rectangular pads and one first arc-shaped pad are both provided with first splicing through holes; the first splicing threaded holes are symmetrically arranged on both sides of the splicing line of the boss fixing plate, and bolts are passed through the first splicing through holes and threadedly engaged with the first splicing threaded holes to splice the two boss fixing sub-plates.

3. The elevator traction machine lever drum brake accessory disassembly device according to claim 2, characterized in that: The shaft fixing plate is formed by splicing two shaft fixing sub-plates; the shaft fixing plate is provided with a plurality of second splicing threaded holes, two second rectangular pads, a plurality of shaft fixing plate fixing through holes, a plurality of tie rod connecting threaded holes, a second arc pad and a shaft through hole; Several second splicing threaded holes are symmetrically arranged on both sides of the splicing line of the shaft fixing disk; second splicing through holes are distributed on the two second rectangular pads and the second arc-shaped pads, and bolts are used to pass through the second splicing through holes and threadedly engage with the second splicing threaded holes to splice the shaft fixing sub-disc; several shaft fixing disk fixing through holes are arranged with clearances fitted with the fixing rod; several pull rod connecting threaded holes are circumferentially distributed on the shaft fixing disk with the center of the shaft through hole as the reference point, and the pull rod is threadedly connected to the shaft fixing disk through the pull rod connecting threaded hole, and the diameter of the shaft through hole is the same as the shaft diameter of the brake fixing shaft away from the traction machine.

4. The elevator traction machine lever drum brake accessory disassembly device according to claim 3, characterized in that: Both ends of the fixing rod are provided with external threads; the fixing rod passes through the fixing through hole of the boss fixing plate and the fixing through hole of the shaft fixing plate, so that one end of the fixing rod extends out of the shaft fixing plate, and the other end of the fixing rod extends out of the boss fixing plate, and both ends of the fixing rod are adapted with nuts to limit the boss fixing plate and the shaft fixing plate.

5. The device for disassembling an elevator traction machine lever drum brake accessory according to claim 4 is characterized in that: After the fixing rod is matched with the boss fixing plate and the shaft fixing plate, the distance between the boss fixing plate and the shaft fixing plate is adjustable, and the distance between the boss fixing plate and the shaft fixing plate is d1-d2, and the thickness of the adapted brake arm is d3, d1<d3<d2.

6. The elevator traction machine lever drum brake accessory disassembly device according to claim 1, characterized in that: The telescopic hydraulic cylinder is provided with a plurality of fixed threaded holes; the hydraulic cylinder fixing plate is provided with a plurality of countersunk holes on the circumference, and the countersunk holes are coaxially matched with the fixed threaded holes; bolts are used to pass through the gasket and the countersunk holes to fix the telescopic hydraulic cylinder and the hydraulic cylinder fixing plate.

7. The elevator traction machine lever drum brake accessory disassembly device according to claim 1, characterized in that: There are 4 pull rods; both ends of the pull rods are respectively provided with external threads, and a through hole is provided on the hydraulic cylinder fixing plate, and the through hole is adapted to the pull rods. One end of the pull rod is threadedly engaged with the pull rod connecting threaded hole on the shaft fixing plate, and the other end passes through the through hole on the hydraulic cylinder fixing plate and is fixed by a nut.

8. The elevator traction machine lever drum brake accessory disassembly device according to claim 4, characterized in that: At least one of the fixing rods passes through the hole on the brake arm.

9. The elevator traction machine lever drum brake accessory disassembly device according to claim 8, characterized in that: A first elastic layer is provided on a side of the boss fixing plate facing the shaft fixing plate, the first elastic layer having elasticity, and covering the surface of the boss fixing plate; A second elastic layer is provided on a side of the shaft fixing disk facing the boss fixing disk. The second elastic layer has elasticity and covers the surface of the shaft fixing disk.

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