Elevator with easy assembly and disassembly, method for assembly and disassembly

Abstract

The application discloses a traction machine convenient to disassemble and assemble and a disassembling and assembling method, and belongs to the technical field of traction machines. The traction machine comprises a machine base, a traction wheel and a fixing structure. The machine base is provided with a supporting shaft, and the traction wheel is rotationally connected with the supporting shaft. The fixing structure comprises a front cover plate and a limiting piece. The front cover plate is installed on the traction wheel. The end of the supporting shaft close to the front cover plate is provided with a containing groove, and the encoder is located in the containing groove. The first end of the limiting piece is installed on the supporting shaft, the second end of the limiting piece is installed on the encoder, one end of the encoder is arranged through the front cover plate and rotationally matched with the front cover plate. The front cover plate is provided with an opening. The connecting point of the limiting piece and the supporting shaft is located at the opening, and the limiting piece is at least partially exposed relative to the front cover plate. The opening of the front cover plate is corresponded with the limiting piece by rotating the traction wheel. The limiting piece and the supporting shaft are disassembled by a tool. The front cover plate and the traction wheel are disassembled, and the encoder on the front cover plate is taken out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of traction machines, in particular to a traction machine convenient to disassemble and assemble and a disassembling and assembling method. BACKGROUND

[0002] The existing traction machine generally comprises a machine base, a traction wheel and an encoder. The traction wheel is rotationally connected to the machine base. The encoder has a main body and a rotating part. The rotating part is fixed to the traction wheel. The main body is fixed in the machine base. The rotating part rotates with the traction wheel. The main body generates an electrical signal to feedback and monitor the rotating speed of the traction wheel.

[0003] However, the encoder is prone to aging after long-term use. Therefore, the encoder needs to be replaced in time to avoid affecting the normal use of the traction machine. However, the traction machine is a power component of the elevator. The components in the traction machine are closely matched, and the precision is high. The disassembling and assembling steps of the encoder are complicated. Therefore, a traction machine capable of quickly disassembling and assembling the encoder is needed. SUMMARY

[0004] The present application aims to improve the problem that the existing encoder is complicated to disassemble in the traction machine, and provides a traction machine convenient to disassemble and assemble and a disassembling and assembling method.

[0005] The technical solution for achieving the above-mentioned purpose comprises the following:

[0006] The traction machine convenient to disassemble and assemble comprises a machine base, a traction wheel, an encoder and a fixing structure. The machine base has a support shaft. The traction wheel is installed on the support shaft and rotationally connected to the support shaft.

[0007] The fixing structure comprises a front cover plate and a limiting part. The front cover plate is installed on the traction wheel. The end of the support shaft close to the front cover plate has a receiving groove. The encoder is located in the receiving groove. The first end of the limiting part is installed on the support shaft. The second end of the limiting part is installed on the encoder. One end of the encoder is arranged through the front cover plate and rotationally matched with the front cover plate.

[0008] The front cover plate has a first moving position and a second moving position. In the first moving position, the limiting part is at least partially located in the through opening. In the second moving position, the limiting part is shielded by the front cover plate.

[0009] In one embodiment, the encoder comprises a main body and a rotating part. The front cover plate has a protruding part facing the encoder. The first end of the rotating part is installed on the protruding part. The second end of the rotating part is rotationally connected to the main body.

[0010] The limiting part is at least partially bent. The main body is fixed with the limiting part.

[0011] In one of the embodiments, the number of the through holes is two, and the two through holes are symmetrically arranged; the limiting member is provided with two symmetrically arranged connecting points on the supporting shaft, and the two connecting points correspond to the two through holes.

[0012] In one of the embodiments, the limiting member comprises two first fixing plates, two connecting plates and a second fixing plate; the two first fixing plates are arranged oppositely and are both mounted on the supporting shaft, and the second fixing plate is attached to and fixed with the main body.

[0013] One of the first fixing plates is fixed with the first end of the second fixing plate through one of the connecting plates, and the other first fixing plate is fixed with the second end of the second fixing plate through the other connecting plate.

[0014] In one of the embodiments, the traction machine further comprises a sealing structure and a bearing; the bearing is sleeved outside the supporting shaft, and the traction wheel is sleeved outside the bearing and is rotationally connected with the supporting shaft through the bearing.

[0015] The sealing structure comprises an oil seal and an oil discharge pipe; the oil seal is sleeved outside the supporting shaft and is fixed with the traction wheel, and is used for sealing the end of the bearing; the outer wall of the machine base near the supporting shaft is bent to form an oil storage cavity, the bottom of the oil storage cavity is provided with an oil discharge hole, the oil discharge pipe is arranged in the machine base, the first end of the oil discharge pipe is in communication with the oil discharge hole, and the second end of the oil discharge pipe is located on the outer wall of the machine base.

[0016] The first outer wall of the traction wheel is provided with at least one first oil separation groove; the first oil separation groove is arranged along the circumference of the traction wheel; and the first oil separation groove is located at the opening of the oil storage cavity.

[0017] In one of the embodiments, a gap is formed between the first outer wall of the traction wheel and the inner wall of the machine base; the gap is located at the top of the oil storage cavity and is away from the oil discharge hole.

[0018] The first oil separation groove is arranged between the oil discharge hole and the gap.

[0019] In one of the embodiments, the traction wheel is provided with a second outer wall; the first outer wall is arranged close to the center of the traction wheel, and the second outer wall is arranged away from the center of the traction wheel; and the second outer wall is provided with at least one second oil separation groove; the second oil separation groove is arranged along the circumference of the traction wheel.

[0020] In one of the embodiments, the traction wheel further comprises a brake disc; the brake disc is arranged along the circumference of the traction wheel; and the brake disc is arranged away from the second oil separation groove.

[0021] In one of the embodiments, the sealing structure further has a wear-resistant sleeve, an outer wall of the support shaft is coated with a sealing glue, the wear-resistant sleeve is sleeved on the support shaft, and the sealing glue is located between the wear-resistant sleeve and the support shaft; and the wear-resistant sleeve is rotationally connected with the oil seal.

[0022] The application further provides a method for disassembling the traction machine, comprising the following steps:

[0023] Step one, the encoder is fixed with one end of the limiting part, and one end of the encoder is installed on the inner side of the front cover plate;

[0024] Step two, the front cover plate is moved, the encoder is put into the accommodating groove, and the front cover plate is located at the front end of the traction sheave;

[0025] Step three, the front cover plate is rotated, at least part of the limiting part is exposed relative to the front cover plate, a tool passes through the through port of the front cover plate, and the other end of the limiting part is fixed with the front end of the support shaft; the front cover plate is corresponded with the mounting hole of the traction sheave, and the front cover plate is fixed on the front end of the traction sheave.

[0026] The technical scheme provided by the application has the following advantages and effects:

[0027] In the process of disassembling the encoder, the front cover plate is corresponded with the limiting part by rotating the traction sheave, so that the connecting position of the limiting part and the support shaft is exposed relative to the front cover plate, the limiting part and the second fastener on the support shaft are disassembled by the tool, and the limiting part is separated from the support shaft. Then, the first fastener on the front cover plate and the traction sheave is disassembled, the encoder on the front cover plate is taken out, and the encoder is replaced. Moreover, the machine base is generally installed close to the wall, the front cover plate is arranged away from the machine base, the front cover plate has a large operation space in the elevator shaft, the front cover plate is convenient to disassemble, and the operation steps of replacing the encoder are simplified. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings herein show the specific examples of the technical scheme of the application, and constitute a part of the specification together with the specific embodiments, for explaining the technical scheme, principle and effect of the application.

[0029] Unless specifically stated or defined otherwise, the same reference signs in different drawings represent the same or similar technical features, and different reference signs may also be used to represent the same or similar technical features.

[0030] Figure 1 is a schematic view of the traction machine in one embodiment of the application;

[0031] Figure 2 is a sectional view of the traction machine in one embodiment of the application;

[0032] Figure 3is an enlarged view of A in Figure 1 Figure 1;

[0033] Figure 4 is an enlarged view of B in Figure 2 Figure 1;

[0034] Figure 5 is a schematic view of the limiting member and the encoder in an embodiment of the present application;

[0035] Figure 6 is an enlarged view of C in Figure 2 Figure 1;

[0036] Figure 7 is an enlarged view of D in Figure 2 Figure 1;

[0037] BRIEF DESCRIPTION OF DRAWINGS

[0038] 100, traction machine;

[0039] 1, machine base; 11, support shaft; 111, accommodating groove;

[0040] 2, traction wheel; 21, brake disc; 22, oil filling port; 201, first outer wall; 202, second outer wall;

[0041] 3, encoder; 31, rotating member; 32, cable; 33, main body;

[0042] 4, fixing structure; 41, front cover plate; 411, through opening; 412, first fastener; 413, protruding portion; 414, mounting portion; 42, limiting member; 421, second fastener; 423, first fixing plate; 424, connecting plate; 425, second fixing plate; 43, wear-resistant sleeve; 44, sealing cover plate;

[0043] 5, sealing structure; 51, oil seal member; 52, oil storage cavity; 521, oil discharge hole; 522, blocking wall; 53, first oil separation groove; 54, gap; 55, oil discharge pipe; 56, second oil separation groove; 57, oil receiving box; 58, sealing glue;

[0044] 6, bearing. DETAILED DESCRIPTION

[0045] In order to facilitate the understanding of the present application, specific embodiments of the present application will be described in more detail below with reference to the accompanying drawings.

[0046] Unless specifically stated or otherwise defined, "first, second, …" used herein is merely used for distinguishing names, and does not represent a specific quantity or order.

[0047] The term "and / or", as used herein, unless otherwise specified, includes any and all combinations of one or more of the associated listed items.

[0048] It should be noted that when an element is considered to be "fixed" to another element, it can be directly fixed to the other element or there can be an intervening element; when an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intervening element; when an element is considered to be "mounted" to another element, it can be directly mounted to the other element or there can be an intervening element; when an element is considered to be "provided" on another element, it can be directly provided on the other element or there can be an intervening element.

[0049] The present application provides a traction machine 100 facilitating replacement of an encoder 3, as shown in the drawings, Figures 1 to 5 The traction machine 100 comprises a machine base 1, a traction wheel 2, a fixing structure 4, the machine base 1 has a support shaft 11, the traction wheel 2 is mounted on the support shaft 11 and is in rotational connection with the support shaft 11; the fixing structure 4 comprises a front cover plate 41 and a limiting member 42, the front cover plate 41 is mounted on the traction wheel 2, the support shaft 11 has a receiving groove 111 at one end close to the front cover plate 41, and the encoder 3 is located in the receiving groove 111; the first end of the limiting member 42 is mounted on the support shaft 11, the second end of the limiting member 42 is mounted on the encoder 3, one end of the encoder 3 is arranged through the front cover plate 41 and is in rotational cooperation with the front cover plate 41; the front cover plate 41 is provided with a through opening 411, and the front cover plate 41 has a first moving position and a second moving position, at the first moving position, the limiting member 42 is at least partially located at the through opening 411, and at the second moving position, the limiting member 42 is shielded by the front cover plate 41.

[0050] Specifically, the inner side of the front cover plate 41 is used for mounting the rotating part of the encoder 3, the fixed part of the encoder 3 is fixed in the receiving groove 111 of the support shaft 11 through the limiting member 42, after the front cover plate 41 is fixed with the traction wheel 2, the traction wheel 2 drives the front cover plate 41 to rotate synchronously, and a part of the encoder 3 keeps synchronous rotation with the traction wheel 2, so that the encoder 3 can monitor the rotation speed of the traction wheel 2, and the corresponding end of the encoder 3 and the front cover plate 41 is provided with a cable 32 for electrical connection with a control circuit board after passing through the machine base 1.

[0051] And, in the process of disassembling the encoder, the front cover plate 41 can have a first moving position and a second moving position by rotating the traction sheave 2, in the first moving position, the through hole 411 corresponds to the limiting piece 42, so that the connecting position of the limiting piece 42 and the support shaft 11 is exposed relative to the front cover plate 41, the limiting piece 42 is disassembled from the second fastener 421 on the support shaft 11 by a tool, so that the limiting piece 42 is separated from the support shaft 11. Then, the front cover plate 41 is disassembled from the first fastener 412 on the traction sheave 2, the encoder 3 on the front cover plate 41 is taken out, and the encoder 3 is replaced. Further, the machine base 1 is located on one side of the traction sheave 2, the machine base 1 supports the traction sheave 2 to rotate through the support shaft 11, in the process of assembling, the machine base 1 can be fixed close to the wall, and the front cover plate 41 at the front end of the traction sheave 2 is arranged away from the wall body, the front end of the traction sheave 2 has a large operation space, therefore, the connection relationship between the support shaft 11 of the machine base 1 and the traction sheave 2 is also convenient for disassembling the encoder 3 at the front end of the traction sheave 2.

[0052] In the process of disassembling and assembling the encoder 3, the application further provides a disassembling and assembling method, comprising the following steps:

[0053] Step one, the encoder 3 is fixed with one end of the limiting piece 42, and one end of the encoder 3 is installed on the inner side of the front cover plate 41;

[0054] Step two, the front cover plate 41 is moved, the encoder 3 is put into the containing groove 111, and the front cover plate 41 is located at the front end of the traction sheave 2;

[0055] Step three, the front cover plate 41 is rotated, the limiting piece 42 is at least partially exposed relative to the front cover plate 41, a tool passes through the through hole 411 of the front cover plate 41 to fix the other end of the limiting piece 42 with the front end of the support shaft 11, and the front cover plate 41 corresponds to the mounting hole of the traction sheave 2, and the front cover plate 41 is fixed on the front end of the traction sheave 2.

[0056] Through the above disassembling and assembling method, the encoder 3 can be quickly replaced, and the work efficiency of maintenance is improved.

[0057] Preferably, the encoder 3 comprises a main body 33 and a rotating piece 31, the front cover plate 41 has a protruding part 413 facing the encoder 3, the first end of the rotating piece 31 is installed on the protruding part 413, and the second end of the rotating piece 31 is rotationally connected with the main body 33; the limiting piece 42 is at least partially bent, and the main body 33 is fixed with the limiting piece 42.

[0058] Specifically, the rotating member 31 of the encoder 3 is fixed with the protruding part 413, the protruding part 413 is for the one end of the rotating member 31 to pass through, the protruding part 413 is used to increase the connecting area between the rotating member 31 and the front cover plate 41, improve the stability of the rotating member 31 after being fixed with the front cover plate 41, and make the front cover plate 41 stably rotate the rotating member 31 when rotating. The main body 33 is fixed in the accommodating groove 111 by the limiting member 42. Since the protruding part 413 protrudes towards the accommodating groove 111, the limiting member 42 is bent to avoid the protruding part 413, which improves the installation flexibility of the encoder 3 in the accommodating groove 111 and also meets the requirement that the encoder 3 is fixed with the supporting shaft 11 by the limiting member 42. By Figure 4 It can be seen that the tractor 100 makes full use of the space of the accommodating groove 111, and the protruding part 413, the limiting member 42 and the encoder 3 are relatively compact at the front end of the traction wheel 2.

[0059] Preferably, the number of the through ports 411 is two, and the two through ports 411 are symmetrically arranged; the limiting member 42 is provided with two symmetrical connecting points on the supporting shaft 11, and the two connecting points correspond to the two through ports 411. Specifically, the installation part 414 between the two through ports 411 is solid, the installation part 414 is used to fix the rotating member 31 of the encoder 3, realize the rotation of the rotating member 31 of the encoder 3 driven by the front cover plate 41, and the two through ports 411 correspond to the two connecting points between the limiting member 42 and the supporting shaft 11, improve the connecting point position of the limiting member 42 and the supporting shaft 11, improve the stability of the limiting member 42 on the supporting shaft 11, and further limit the position of the encoder 3 in the accommodating groove 111.

[0060] Preferably, the fixing structure 4 further has a sealing cover plate 44, the sealing cover plate 44 is used to be installed on the front cover plate 41, and the sealing cover plate 44 is used to seal the two through ports 411, avoid external dust and sundries from entering the inside of the tractor 100 through the through ports 411, and avoid affecting the normal operation of the encoder 3.

[0061] In some embodiments, the limiting member 42 comprises two first fixing plates 423, two connecting plates 424, and a second fixing plate 425. The two first fixing plates 423 are oppositely arranged and are both mounted on the support shaft 11. The second fixing plate 425 is attached to and fixed with the main body 33. One of the first fixing plates 423 is fixed with the first end of the second fixing plate 425 through one of the connecting plates 424. The other first fixing plate 423 is fixed with the second end of the second fixing plate 425 through the other connecting plate 424. Specifically, the two first fixing plates 423 can be used to fix two positions at the front end of the support shaft 11. The two first fixing plates 423 are fixed with the two ends of the second fixing plate 425 through the two connecting plates 424. The connecting plates 424 are arranged obliquely. The connecting plates 424 are fixed with the encoder 3 after avoiding the protruding portion 413. The second fixing plate 425 is attached to the main body 33 and is fixed with the main body 33 through bolts.

[0062] In some embodiments, as shown in Figure 2 、 Figure 6 、 Figure 7 The traction machine 100 further has a sealing structure 5 and a bearing 6. The bearing 6 is sleeved on the outside of the support shaft 11. The traction wheel 2 is sleeved on the outside of the bearing 6 and is rotationally connected with the support shaft 11 through the bearing 6. The sealing structure 5 has an oil seal 51 and an oil discharge pipe 55. The oil seal 51 is sleeved on the outside of the support shaft 11 and is fixed with the traction wheel 2. The oil seal 51 is used to seal the end of the bearing 6. The outer wall of the base 1 near the support shaft 11 is bent to form an oil storage cavity 52. The bottom of the oil storage cavity 52 has an oil discharge hole 521. The oil discharge pipe 55 is arranged in the base 1. The first end of the oil discharge pipe 55 is in communication with the oil discharge hole 521. The second end of the oil discharge pipe 55 is located on the outer wall of the base 1. The first outer wall 201 of the traction wheel 2 is provided with at least one first oil separation groove 53. The first oil separation groove 53 is arranged along the circumference of the traction wheel 2. The first oil separation groove 53 is located at the opening of the oil storage cavity 52.

[0063] Specifically, the oil seal 51 is used to seal the end of the bearing 6. When the oil seal 51 is aged, the oil of the bearing 6 may seep out of the oil seal 51 and flow into the opening of the oil storage cavity 52 along the outer wall of the traction wheel 2. The leaked oil will flow into the oil storage cavity 52 along the outer wall of the base 1. Since the first outer wall 201 of the traction wheel 2 has the first oil separation groove 53, the first oil separation groove 53 blocks the oil. With the rotation of the traction wheel 2, the centrifugal force generated by the traction wheel 2 will throw the oil into the oil storage cavity 52. With the accumulation of oil in the oil storage cavity 52, the oil in the oil storage cavity 52 will flow into the oil discharge pipe 55 through the oil discharge hole 521. The oil discharge pipe 55 will discharge the oil in the oil storage cavity 52 out of the base 1, avoiding the oil flowing along the outer wall of the traction wheel 2 or the base 1 to other positions of the traction machine 100, preventing the leaked oil from damaging other components of the traction machine 100. Therefore, even if the traction machine 100 leaks oil, it can still operate normally.

[0064] Further, since the base 1 is in a static state, the outer wall of the base 1 is bent to form the oil storage cavity 52, and the oil storage cavity 52 is also in a static state, and the first oil separation groove 53 rotates with the traction sheave 2, so that the oil on the outer wall of the traction sheave 2 can be splashed into the oil storage cavity 52 due to centrifugal force, and the first end of the oil discharge pipe 55 can be fixed in the base 1 and communicate with the oil discharge hole 521 of the oil storage cavity 52. The design of the structure is practical and does not interfere with the rotation of the traction sheave 2.

[0065] Preferably, the second end of the oil discharge pipe 55 is connected with an oil receiving box 57, and the oil receiving box 57 is used to collect the leaked oil in the bearing 6.

[0066] In the embodiment, the front end of the traction sheave 2 has an oil injection port 22 and an oil delivery channel, the oil injection port 22 communicates with the first end of the oil delivery channel, and the second end of the oil delivery channel is connected with the bearing 6. When the oil in the bearing 6 is used up, lubricating oil is injected from the oil injection port 22 at the front end of the traction sheave 2, and the lubricating oil enters the bearing 6 through the oil delivery channel. This oil injection method is extremely convenient.

[0067] Preferably, the first outer wall 201 of the traction sheave 2 and the inner wall of the base 1 have a gap 54, the gap 54 is located at the top of the oil storage cavity 52 and is away from the oil discharge hole 521, and the first oil separation groove 53 is arranged between the oil discharge hole 521 and the gap 54. Specifically, the gap 54 is provided between the traction sheave 2 and the base 1 to prevent the base 1 from interfering with the rotation of the traction sheave 2, and the gap 54 is located at the top of the oil storage cavity 52. Only when the oil in the oil storage cavity 52 cannot be discharged and is full, the oil in the oil storage cavity 52 can overflow from the gap 54. Therefore, in the case that the oil discharge pipe 55 is unobstructed, the probability of the oil in the oil storage cavity 52 overflowing from the gap 54 is very small, and the overflow of the oil from the gap 54 is avoided.

[0068] Further, the side of the oil storage cavity 52 close to the gap 54 has a vertical baffle 522, which can block the oil in the oil storage cavity 52 from leaking from the side close to the gap 54 when the oil in the oil storage cavity 52 is not full.

[0069] Preferably, the traction sheave 2 has a second outer wall 202, the first outer wall 201 is arranged close to the center of the traction sheave 2, and the second outer wall 202 is arranged away from the center of the traction sheave 2; the second outer wall 202 is provided with at least one second oil separation groove 56 extending along the circumference of the traction sheave 2. Specifically, the oil in the oil storage cavity 52 overflows from the gap 54 and flows outward along the outer wall of the traction sheave 2. The second outer wall 202 of the traction sheave 2 is provided with the second oil separation groove 56, which blocks the oil on the second outer wall 202. The second oil separation groove 56 rotates with the traction sheave 2, and the traction sheave 2 throws the oil into the elevator shaft, avoiding the oil flowing along the outer wall of the traction sheave 2 to the brake disc 21. Oil can reduce the friction of the brake disc 21, so it is necessary to avoid the oil affecting the normal use of the brake disc 21.

[0070] Preferably, the traction sheave 2 also has a brake disc 21 arranged along the circumference of the traction sheave 2, and the brake disc 21 is arranged away from the second oil separation groove 56. This can further avoid the oil being thrown onto the brake disc 21. The brake disc 21 cooperates with a brake, which is used for emergency braking of the brake disc 21.

[0071] In some embodiments, the sealing structure 5 also has a wear-resistant sleeve 43, the outer wall of the support shaft 11 is coated with a layer of sealing glue 58, the wear-resistant sleeve 43 is sleeved on the outside of the support shaft 11, and the sealing glue 58 is located between the wear-resistant sleeve 43 and the support shaft 11; the wear-resistant sleeve 43 is rotatably connected with the oil seal 51. Specifically, the wear-resistant sleeve 43 is in contact with the oil seal 51, and the surface roughness and hardness of the contact surface between the wear-resistant sleeve 43 and the inner lip of the oil seal 51 are satisfied, so as to avoid direct contact between the support shaft 11 and the oil seal 51 and improve the service life of the oil seal 51. Moreover, the wear-resistant sleeve 43 and the support shaft 11 have a layer of sealing glue 58 therebetween, which can further prevent oil from seeping out of the bearing 6.

[0072] In some embodiments, the bearing 6 also has a wear-resistant sleeve 43 and an oil seal 51 at one end close to the front end cover plate 41. The wear-resistant sleeve 43 here is in a bent shape, one end of the wear-resistant sleeve 43 is fixed to the end of the support shaft 11, the other end of the wear-resistant sleeve 43 is rotatably connected with the oil seal 51, and the oil seal 51 and the wear-resistant sleeve 43 block the end of the bearing 11. Moreover, the wear-resistant sleeve 43 at the front end of the support shaft 11 is at least partially located at the through hole 411, so that when the end of the bearing 6 at the front end of the support shaft 11 leaks oil, whether the wear-resistant sleeve 43 has oil can be observed through the through hole 411, thereby monitoring the oil leakage at both ends of the bearing 6.

[0073] Therefore, the through hole 411 provided in the front cover plate 41 can not only facilitate the disassembly and assembly of the encoder 3, but also serve as an observation window for periodically observing whether the front end of the bearing 6 leaks oil.

[0074] When referring to the drawings, new features appearing in the drawings are explained; in order to avoid the description being less concise due to repeated reference to the drawings, features already described are not referred to again in the drawings where the description is clear.

[0075] The purpose of the above examples is to exemplarily reproduce and deduce the technical solutions of the present application, and to completely describe the technical solutions, purposes and effects of the present application, so as to make the public more thoroughly and comprehensively understand the disclosure of the present application, and not to limit the protection scope of the present application.

[0076] The above examples are also not based on an exhaustive enumeration of the present application, and there can be many other unlisted embodiments. Any substitution and improvement made without violating the concept of the present application shall fall within the protection scope of the present application.

Claims

1. A hoisting machine which is easy to disassemble, characterized in that The utility model relates to a traction machine, including: a base, a traction wheel, an encoder and a fixing structure, the base has a support shaft, the traction wheel is installed on the support shaft and is rotationally connected with the support shaft; the fixing structure includes a front cover plate and a limiting piece, the front cover plate is installed on the traction wheel, one end of the support shaft close to the front cover plate has a receiving groove, and the encoder is located in the receiving groove; the first end of the limiting piece is installed on the support shaft, the second end of the limiting piece is installed on the encoder, one end of the encoder is provided through the front cover plate and rotationally matched with the front cover plate; wherein, the front cover plate is provided with a through opening, the front cover plate has a first moving position and a second moving position, at the first moving position, the limiting piece is at least partially located at the through opening; at the second moving position, the limiting piece is shielded by the front cover plate; the traction machine also has a sealing structure and a bearing, the bearing is sleeved outside the support shaft, the traction wheel is sleeved outside the bearing and is rotationally connected with the support shaft through the bearing; the sealing structure has an oil seal and an oil discharge pipe, the oil seal is sleeved outside the support shaft and is fixed with the traction wheel, and the oil seal is used for sealing the end of the bearing; the outer wall of the base close to the support shaft is bent to form an oil storage cavity, the bottom of the oil storage cavity has an oil discharge hole, the oil discharge pipe is arranged in the base, the first end of the oil discharge pipe is communicated with the oil discharge hole, and the second end of the oil discharge pipe is located on the outer wall of the base; the first outer wall of the traction wheel is provided with at least one first oil separation groove, the first oil separation groove is arranged along the circumference of the traction wheel, and the first oil separation groove is located at the opening of the oil storage cavity; the first outer wall of the traction wheel and the inner wall of the base have a gap, the gap is located at the top of the oil storage cavity and is arranged away from the oil discharge hole; the first oil separation groove is arranged between the oil discharge hole and the gap.

2. The machine of claim 1, wherein the encoder includes a main body and a rotating piece, the front cover plate has a protruding portion towards the encoder, the first end of the rotating piece is installed on the protruding portion, and the second end of the rotating piece is rotationally connected with the main body; the limiting piece is at least partially bent, and the main body is fixed with the limiting piece.

3. The easily detachable traction machine according to claim 2, wherein the number of through openings is two, and the two through openings are symmetrically arranged; the limiting piece is provided with two symmetrical connecting points on the support shaft, and the two connecting points correspond to the two through openings.

4. The easily detachable traction machine according to claim 3, wherein the limiting piece includes two first fixing plates, two connecting plates and a second fixing plate, the two first fixing plates are oppositely arranged and are both installed on the support shaft, and the second fixing plate is attached to and fixed with the main body; one first fixing plate is fixed with the first end of the second fixing plate through one connecting plate, and the other first fixing plate is fixed with the second end of the second fixing plate through the other connecting plate.

5. The easily detachable traction machine according to claim 1, wherein the traction wheel has a second outer wall, the first outer wall is arranged close to the center of the traction wheel, and the second outer wall is arranged away from the center of the traction wheel; the second outer wall is provided with at least one second oil separation groove, and the second oil separation groove is arranged along the circumference of the traction wheel.

6. The easily detachable traction machine according to claim 5, wherein the traction wheel also has a brake disc, the brake disc is arranged along the circumference of the traction wheel, and the brake disc is arranged away from the second oil separation groove.

7. The easily detachable traction machine according to claim 1, wherein The sealing structure further has a wear-resistant sleeve, an outer wall of the support shaft is coated with a sealing glue, the wear-resistant sleeve is sleeved outside the support shaft, and the sealing glue is located between the wear-resistant sleeve and the support shaft; and the wear-resistant sleeve is rotationally connected with the oil seal.

8. The method of disassembling the traction machine according to any one of claims 1 to 7, characterized in that, The method comprises the following steps: The encoder is fixed to one end of the limiting member, and one end of the encoder is mounted to the inner side of the front cover plate; The front cover plate is moved, the encoder is placed into the accommodating groove, and the front cover plate is located at the front end of the traction wheel; The front cover plate is rotated, the limiting member is at least partially exposed relative to the front cover plate, a tool passes through the through opening of the front cover plate, the other end of the limiting member is fixed to the front end of the support shaft, the mounting hole of the front cover plate is corresponded to the traction wheel, and the front cover plate is fixed to the front end of the traction wheel.

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