Clutch pulling and locking structure, clutch, motor and coal mining machine

Abstract

The present invention discloses a clutch pull-out locking structure, a clutch, a motor, and a coal mining machine, and relates to the technical field of coal mining equipment in coal mines. The clutch pull-out locking structure includes a fixed plate, a limit baffle, a push-pull shaft, and a rotating assembly; the fixed plate is provided with a through hole; the limit baffle is provided on one side of the fixed plate and forms a limit groove between the fixed plate and the fixed plate; one end of the push-pull shaft is passed through the through hole; the rotating assembly is connected to the push-pull shaft and is provided on the side of the fixed plate provided with the limit baffle. The rotating assembly can rotate relative to the fixed plate and has a locked state and a separated state. The rotating assembly is provided with a limit member; when the rotating assembly is in the locked state, the limit member extends into the limit groove and cooperates with the limit groove in a limited manner; when the rotating assembly is in the separated state, the limit member is out of the limit groove, and the rotating assembly can push and pull the push-pull shaft along the axial direction of the push-pull shaft. The technical solution provided by the present invention can improve the limit reliability and thus improve the locking effect.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining equipment, and in particular to a clutch pulling and locking structure, a clutch, a motor and a coal mining machine. Background Art

[0002] In the design of the torque shaft clutch device of the coal mining machine motor, the torque shaft is usually connected and disconnected by the engagement and disengagement of the gear clutch device to achieve the connection and disconnection of the transmission system, and this process requires manual pushing and pulling.

[0003] In the related art, the traditional clutch pull-out locking structure uses a fan-shaped limit plate to limit the limit block to achieve separation and locking. However, the contact area between the fan-shaped limit plate and the limit block is too small, and the limit reliability of the limit block is poor, resulting in poor locking effect. Summary of the Invention

[0004] The main purpose of the present invention is to propose a clutch pulling and locking structure, a clutch, a motor and a coal mining machine, aiming to improve the limit reliability and thus improve the locking effect.

[0005] To achieve the above-mentioned purpose, the present invention proposes a clutch pulling and locking structure, comprising:

[0006] A fixed disk, wherein the fixed disk is provided with a through hole;

[0007] A limit baffle, the limit baffle being arranged on one side of the fixed disk and forming a limit groove between the limit baffle and the fixed disk;

[0008] a push-pull shaft, one end of which is passed through the through hole, and the other end of which extends in a direction away from the limit baffle and is used to connect with the torque shaft;

[0009] A rotating assembly connected to the push-pull shaft and provided on a side of the fixed disk where the limit baffle is provided. The rotating assembly can rotate relative to the fixed disk and has a locked state and a separated state. The rotating assembly is provided with a limit member;

[0010] When the rotating assembly is in a locked state, the limiting member extends into the limiting groove and cooperates with the limiting groove; when the rotating assembly is in a separated state, the limiting member escapes from the limiting groove, and the rotating assembly can push and pull the push-pull shaft along the axial direction of the push-pull shaft.

[0011] In one embodiment, the fixed plate is provided with a limiting protrusion on one side of the limiting baffle, a stop shoulder is provided on one side of the limiting protrusion, and the limiting baffle is connected to the stop shoulder;

[0012] When the rotating assembly is in a locked state, the limiting member extends into the limiting groove and abuts against the blocking shoulder.

[0013] In one embodiment, a detachable locking member is provided on a side of the limit baffle away from the baffle shoulder;

[0014] When the rotating assembly is in a locked state, the locking member at least partially extends into the notch of the limiting groove to block the limiting member.

[0015] In one embodiment, at least two of the limiting protrusions and the limiting baffles are provided. In the circumferential direction of the fixed disk, one limiting baffle is provided between two adjacent limiting protrusions, and one limiting baffle is connected to a shoulder of one limiting protrusion.

[0016] The rotating assembly is provided with at least two limiting members. When the rotating assembly is in a locked state, one limiting member extends into one limiting groove.

[0017] In one embodiment, the limiting protrusions are extended along the circumference of the fixed disk, and an avoidance position is formed between the limiting baffle connected to one of the limiting protrusions and the other limiting protrusion;

[0018] When the rotating assembly is in a separated state, the limiting member is located in the avoidance position.

[0019] In one embodiment, the limiting baffle includes:

[0020] A connecting plate connected to the shoulder;

[0021] A limiting plate is connected to the connecting plate, and the limiting groove is formed between the limiting plate and the fixed plate. The limiting plate is extended along the circumference of the fixed plate.

[0022] In one embodiment, the rotating assembly comprises:

[0023] a rotating baffle, the rotating baffle being connected to the push-pull shaft and provided with the limiting member;

[0024] A handle is connected to a side of the rotating baffle away from the fixed disk.

[0025] In one embodiment, the rotating baffle is connected to the push-pull shaft via a fastener.

[0026] In one embodiment, the rotating baffle is provided with a first center hole passing through the two plate surfaces, the shaft end of the push-pull shaft is provided with a second center hole, the fastener is passed through the first center hole and the through hole, and is inserted into the second center hole.

[0027] In one embodiment, the plate surface of the rotating baffle facing the push-pull shaft is provided with a pin hole located on one side of the first center hole, and the shaft end of the push-pull shaft is also provided with a fixing pin located on one side of the second center hole, and the fixing pin is inserted into the pin hole.

[0028] In one embodiment, the rotating baffle is provided with at least two first bolt holes passing through the two plate surfaces, the shaft end of the push-pull shaft is provided with at least two second bolt holes, and the rotating assembly also includes at least two fastening bolts, one of the fastening bolts is passed through one of the first bolt holes and the through hole, and is inserted into one of the second bolt holes.

[0029] In one embodiment, a sealing ring is provided between the rotating baffle and the fixed disk, and the sealing ring is arranged around the through hole.

[0030] In one embodiment, a groove is provided on a side of the rotating baffle close to the fixed disk, and the sealing ring is partially provided in the groove.

[0031] In one embodiment, the fixing plate is provided with a drainage hole.

[0032] In one embodiment, a limit pin is provided on the outer peripheral wall of the push-pull shaft, and a pin avoidance hole is provided on the wall of the through hole;

[0033] When the rotating assembly is in a separated state, the limiting pin and the avoidance pin hole are arranged opposite to each other, so that the rotating assembly pushes and pulls the push-pull shaft along the axial direction of the push-pull shaft.

[0034] To achieve the above object, the present invention further provides a clutch, comprising:

[0035] Torque shaft, used for clutching with the main shaft;

[0036] As in the above-mentioned clutch pulling and locking structure, the push-pull shaft of the clutch pulling and locking structure is connected to the torque shaft.

[0037] To achieve the above object, the present invention further provides a motor, comprising:

[0038] A motor body, wherein the motor body is provided with a main shaft;

[0039] As the clutch mentioned above, the clutch includes a torque shaft and a clutch pull-and-lock structure, one end of the main shaft is engaged with one end of the torque shaft, and the push-pull shaft of the clutch pull-and-lock structure is connected to the end of the torque shaft away from the main shaft.

[0040] In one embodiment, the clutch pulling and locking structure is embedded in the motor body.

[0041] To achieve the above object, the present invention further provides a coal mining machine, comprising:

[0042] Coal mining machine body;

[0043] As for the motor mentioned above, the motor includes a motor bearing cover and a clutch pull-and-lock structure, and the fixed disk of the clutch pull-and-lock structure is connected to the motor bearing cover.

[0044] In one embodiment, the motor further includes a motor end cover, and the clutch pulling and locking structure is embedded in the motor end cover.

[0045] The technical solution of the present invention limits the rotation component by using a full-circle fixed disk and a limiting baffle; when the rotation component rotates to a separated state, the limiting member of the rotation component disengages from the limiting groove, and the rotation component can push and pull the push-pull shaft along the axial direction of the push-pull shaft. For example, when the push-pull shaft is pulled out by the rotation component, the push-pull shaft will drive the torque shaft to separate from the main shaft, and the torque shaft no longer transmits torque; and when the push-pull shaft is pushed in by the rotation component, the push-pull shaft drives the torque shaft to engage with the main shaft, and the rotation component can be rotated to a locked state. The limiting member of the rotation component can extend into the limiting groove between the limiting baffle and the fixed disk to cooperate with the limiting groove to lock the rotation component. Therefore, the present solution limits the rotation component by using a full-circle fixed disk and a limiting baffle, which can make the contact area between the fixed disk and the limiting baffle and the rotation component larger, thereby increasing the limiting area of ​​the rotation component, thereby improving the limiting reliability and improving the locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0047] Figure 1 An exploded view of an embodiment of a clutch pull-out and locking structure provided by the present invention;

[0048] Figure 2 A schematic structural diagram of a fixed plate in an embodiment of a clutch pull-out locking structure provided by the present invention;

[0049] Figure 3 A schematic structural diagram of a limit baffle in an embodiment of a clutch pull-out locking structure provided by the present invention;

[0050] Figure 4A schematic structural diagram of a rotating baffle in an embodiment of a clutch pull-out locking structure provided by the present invention;

[0051] Figure 5 A schematic structural diagram of a handle in an embodiment of a clutch pulling and locking structure provided by the present invention;

[0052] Figure 6 A schematic diagram of the structure of an embodiment of the clutch pull-out locking structure provided by the present invention in cooperation with a motor bearing cover;

[0053] Figure 7 A cross-sectional view of an embodiment of the clutch pull-out locking structure provided by the present invention in cooperation with a motor bearing cover;

[0054] Figure 8 An exploded view of another embodiment of the clutch pulling and locking structure provided by the present invention;

[0055] Figure 9 A schematic structural diagram of a rotating baffle in another embodiment of the clutch pull-out locking structure provided by the present invention;

[0056] Figure 10 An exploded view of another embodiment of the clutch pulling and locking structure provided by the present invention;

[0057] Figure 11 This is a schematic structural diagram of a rotating baffle in another embodiment of the clutch pulling and locking structure provided by the present invention.

[0058] Description of Figure Numbers:

[0059] Label name Label name 100 Clutch pull-lock structure 32 Second center hole 10 Fixed disk 33 Fixed pin 11 Through hole 34 Second bolt hole 111 Avoid pin hole 40 Rotating components 12 Limiting protrusion 41 Rotating bezel 121 Shoulder Block 411 Limiting parts 13 drainage holes 412 First center hole 20 Limit baffle 413 Pin hole 20a Limit slot 414 First bolt hole 20b Locking parts 42 handle 20c Avoidance position 50 fastener 21 Connecting plate 60 sealing ring 22 Limiting plate 70 Fastening bolts 30 Push-pull shaft 200 Motor bearing cover 31 Limit pin

[0060] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0062] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0063] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0064] In the design of the torque shaft clutch device of the coal mining machine motor, the torque shaft is usually connected and disconnected by the engagement and disengagement of the gear clutch device to achieve the connection and disconnection of the transmission system, and this process requires manual pushing and pulling.

[0065] In the related art, the traditional clutch pull-out locking structure uses a fan-shaped limit plate to limit the limit block to achieve separation and locking. However, the contact area between the fan-shaped limit plate and the limit block is too small, and the limit reliability of the limit block is poor, resulting in poor locking effect.

[0066] In view of the above problems, the present invention proposes a clutch pull-out locking structure 100 , aiming to improve the limit reliability and thus enhance the locking effect.

[0067] See also Figures 1 to 7 In one embodiment of the present invention, the clutch pull-out locking structure 100 includes a fixed plate 10, a limit baffle 20, a push-pull shaft 30, and a rotating assembly 40; the fixed plate 10 is provided with a through hole 11; the limit baffle 20 is provided on one side of the fixed plate 10, and a limit groove 20a is formed between the fixed plate 10; one end of the push-pull shaft 30 is passed through the through hole 11, and the other end of the push-pull shaft 30 extends in a direction away from the limit baffle 20 and is used to connect with the torque shaft; the rotating assembly 40 is connected to the push-pull shaft 30 , and is arranged on one side of the fixed disk 10 with a limit baffle 20, the rotating assembly 40 can rotate relative to the fixed disk 10, and has a locked state and a separated state, the rotating assembly 40 is provided with a limit piece 411; when the rotating assembly 40 is in the locked state, the limit piece 411 extends into the limit groove 20a and cooperates with the limit groove 20a; when the rotating assembly 40 is in the separated state, the limit piece 411 escapes from the limit groove 20a, and the rotating assembly 40 can push and pull the push-pull shaft 30 along the axial direction of the push-pull shaft 30.

[0068] The technical solution of the present invention limits the rotating component 40 by using the cooperation of the full-circle fixed disk 10 and the limit baffle 20; when the rotating component 40 rotates to the separated state, the limit piece 411 of the rotating component 40 disengages from the limit groove 20a, and at this time the rotating component 40 can push and pull the push-pull shaft 30 along the axial direction of the push-pull shaft 30. For example, when the push-pull shaft 30 is pulled out by the rotating component 40, the push-pull shaft 30 will drive the torque shaft to separate from the main shaft, and at this time the torque shaft no longer transmits torque; and when the push-pull shaft 30 is pushed in by the rotating component 40, the push-pull shaft 30 drives the torque shaft to engage with the main shaft. At this time, the rotating component 40 can be rotated to the locked state, and the limit piece 411 of the rotating component 40 can extend into the limit groove 20a between the limit baffle 20 and the fixed disk 10 to cooperate with the limit groove 20a to lock the rotating component 40. Therefore, this solution limits the rotating component 40 by using the cooperation of the full-circle fixed disk 10 and the limiting baffle 20, so that the contact area between the fixed disk 10 and the limiting baffle 20 and the rotating component 40 can be larger, thereby increasing the limiting area of ​​the rotating component 40, thereby improving the limiting reliability and improving the locking effect.

[0069] In addition, the limiting method achieved by using the limiting baffle 20 and the limiting part 411 of the rotating assembly 40 has a relatively simple structure. Compared with the conventional solution of using positioning columns and spring-fixed limiting blocks, the limiting method of this solution can better withstand vibration impact under harsh working conditions in coal seams, is not easy to bend and fail, and is more reliable.

[0070] In some embodiments, the through hole 11 may be disposed in the middle of the fixed disk 10 , and the central axis of the through hole 11 is coaxial with the central axis of the fixed disk 10 , that is, the through hole 11 is the central hole of the fixed disk 10 .

[0071] See also Figure 1 、 Figure 2 In one embodiment of the present invention, the fixed disk 10 is provided with a limiting protrusion 12 on one side of the limiting baffle 20, and a blocking shoulder 121 is provided on one side of the limiting protrusion 12, and the limiting baffle 20 is connected to the blocking shoulder 121; when the rotating assembly 40 is in a locked state, the limiting member 411 extends into the limiting groove 20a and abuts against the blocking shoulder 121.

[0072] In this way, when the rotating assembly 40 is rotated from the separated state to the locked state, the limit member 411 gradually extends into the limit groove 20a until the limit member 411 abuts against the shoulder 121 of the limit protrusion 12, and the rotation of the rotating assembly 40 is stopped, and the rotating assembly 40 can be accurately rotated to the locked state.

[0073] In actual application, the limiting protrusion 12 and the fixing plate 10 can be an integrally formed structure, or the limiting protrusion 12 can be fixed to the fixing plate 10 by bolts, bonding, or the like.

[0074] In some embodiments, the limit baffle 20 can be fixed to the baffle shoulder 121 by bolts, which has high connection strength, is easy to disassemble and repair, and has strong interchangeability, which can effectively improve the efficiency of replacement and maintenance.

[0075] See also Figure 1 、 Figure 6 In one embodiment of the present invention, a detachable locking member 20b is provided on the side of the limiting baffle 20 away from the shoulder 121; when the rotating assembly 40 is in a locked state, the locking member 20b at least partially extends into the notch of the limiting groove 20a to block the limiting member 411.

[0076] With such arrangement, before rotating the rotating assembly 40 to the locked state, the locking piece 20b must be removed from the limit baffle 20 or the locking piece 20b must be loosened so that there is no blocking structure at the notch of the limit groove 20a. Then, the rotating assembly 40 is rotated so that the limit piece 411 extends into the limit groove 20a. When the limit piece 411 abuts against the shoulder 121 of the limit protrusion 12, the rotation of the rotating assembly 40 is stopped. Then, the locking piece 20b is reinstalled on the limit baffle 20, or the locking piece 20b is tightened so that the locking piece 20b at least partially extends into the notch of the limit groove 20a, so as to block the limit piece 411 through the locking piece 20b, thereby realizing the rotation limitation of the rotating assembly 40, which can avoid the safety accidents caused by the limit piece 411 being detached from the limit groove 20a due to misoperation.

[0077] In some embodiments, the locking member 20 b may be a bolt, and a threaded hole may be provided on the fixing plate 10 . When the bolt is installed on the limiting baffle 20 , the bolt may be screwed into the threaded hole of the fixing plate 10 .

[0078] See also Figure 1 、 Figure 2 、 Figure 6 In one embodiment of the present invention, there are at least two limiting protrusions 12 and limiting baffles 20. In the circumferential direction of the fixed disk 10, a limiting baffle 20 is provided between two adjacent limiting protrusions 12, and a limiting baffle 20 is connected to the shoulder 121 of a limiting protrusion 12; the rotating assembly 40 is provided with at least two limiting members 411. When the rotating assembly 40 is in a locked state, a limiting member 411 extends into a limiting groove 20a.

[0079] With such a configuration, when the rotating assembly 40 is rotated to the locking state, at least two limiting members 411 of the rotating assembly 40 can be respectively extended into at least two limiting grooves 20a to achieve a bidirectional or multi-directional limiting effect, which can further improve the limiting reliability and further improve the locking effect.

[0080] In some embodiments, there are two limiting protrusions 12 and two limiting baffles 20, and the two limiting protrusions 12 and the two limiting baffles 20 are arranged at circumferential intervals along the fixed disk 10. The rotating assembly 40 is provided with two symmetrically distributed limiting members 411. When the rotating assembly 40 is in a locked state, the two limiting members 411 respectively extend into the two limiting grooves 20a to achieve a two-way limiting effect.

[0081] See also Figure 1 、 Figure 2 、 Figure 6 In one embodiment of the present invention, the limiting protrusions 12 are extended along the circumference of the fixed disk 10, and an avoidance position 20c is formed between the limiting baffle 20 connected to one of the limiting protrusions 12 and the other limiting protrusion 12; when the rotating assembly 40 is in a separated state, the limiting member 411 is located in the avoidance position 20c.

[0082] With such an arrangement, when it is necessary to shut down the machine or cut off the power transmission, the rotating component 40 is rotated to make the limit member 411 disengage from the limit groove 20a until the limit member 411 rotates to the avoidance position 20c to abut against the other limit protrusion 12. The rotation of the rotating component 40 is stopped, and the rotating component 40 can be accurately rotated to the separation state. At this time, the push-pull shaft 30 can be pulled out through the rotating component 40, so that the push-pull shaft 30 drives the torque shaft to separate from the main shaft. At this time, the torque shaft no longer transmits torque.

[0083] See also Figure 1 、 Figure 3 In one embodiment of the present invention, the limiting baffle 20 includes a connecting plate 21 and a limiting plate 22; the connecting plate 21 is connected to the baffle shoulder 121; the limiting plate 22 is connected to the connecting plate 21, and a limiting groove 20a is formed between the limiting plate 22 and the fixed disk 10, and the limiting plate 22 is extended along the circumference of the fixed disk 10.

[0084] With such a configuration, the connecting plate 21 can be connected to the shoulder 121 of the limiting protrusion 12 to fix the limiting baffle 20 on the fixed disk 10, and the limiting plate 22 can be extended along the circumference of the fixed disk 10. In this way, a limiting groove 20a extending along the circumference of the fixed disk 10 can be formed between the limiting plate 22 and the fixed disk 10, which can further increase the contact area between the limiting baffle 20 and the limiting member 411, thereby improving the limiting reliability.

[0085] In some embodiments, the connecting plate 21 can be fixed to the shoulder 121 of the limiting protrusion 12 by at least two bolts, which can prevent the limiting baffle 20 from rotating relative to the fixed disk 10, thereby increasing the connection strength of the limiting baffle 20.

[0086] See also Figure 1 、 Figure 4 、 Figure 5In one embodiment of the present invention, the rotating assembly 40 includes a rotating baffle 41 and a handle 42; the rotating baffle 41 is connected to the push-pull shaft 30 and is provided with a limit member 411; the handle 42 is connected to the side of the rotating baffle 41 away from the fixed disk 10.

[0087] With this arrangement, the user can rotate the rotating baffle 41 by operating the handle 42 , thereby making it easier to switch the rotating assembly 40 between the separated state and the locked state.

[0088] In some embodiments, the handle 42 can also be fixed to the rotating baffle 41 with bolts, which has high connection strength, is easy to disassemble and maintain, and has strong interchangeability, which can effectively improve the efficiency of replacement and maintenance.

[0089] See also Figure 1 、 Figure 7 In one embodiment of the present invention, the rotating baffle 41 is connected to the push-pull shaft 30 via a fastener 50 .

[0090] In this way, by using fasteners 50 to connect the rotating baffle 41 to the push-pull shaft 30, the connection reliability between the rotating baffle 41 and the push-pull shaft 30 can be ensured, so that the rotating baffle 41 can be smoothly pulled out or pushed into the push-pull shaft 30, and then the torque shaft can be smoothly pulled out or pushed in through the push-pull shaft 30, so that the torque shaft and the main shaft can be separated or combined.

[0091] In some embodiments, the fastener 50 may be a bolt, which has high connection strength, is easy to disassemble and repair, and has strong interchangeability, and can effectively improve the efficiency of replacement and repair.

[0092] See also Figure 1 、 Figure 7 In one embodiment of the present invention, the rotating baffle 41 is provided with a first center hole 412 passing through the two plate surfaces, the axial end of the push-pull shaft 30 is provided with a second center hole 32, and the fastener 50 is passed through the first center hole 412 and the through hole 11 of the fixed disk 10, and is inserted into the second center hole 32.

[0093] In this arrangement, the fastener 50 is directly passed through the first center hole 412 of the rotating baffle 41 and the through hole 11 of the fixed disk 10, and then inserted into the second center hole 32 of the push-pull shaft 30 to realize the connection between the rotating baffle 41 and the push-pull shaft 30, so that the fastener 50 is installed along the axial direction of the push-pull shaft 30, which can avoid interference between the fastener 50 and the fixed disk 10 during the rotation of the rotating baffle 41.

[0094] See also Figure 8 、 Figure 9In another embodiment of the present invention, a pin hole 413 is provided on the plate surface of the rotating baffle 41 facing the push-pull shaft 30 and is located on one side of the first center hole 412. The shaft end of the push-pull shaft 30 is also provided with a fixing pin 33 on one side of the second center hole 32, and the fixing pin 33 is inserted into the pin hole 413.

[0095] With such a setting, by increasing the cooperation between the fixing pin 33 and the pin hole 413, the connection reliability between the rotating baffle 41 and the push-pull shaft 30 can be improved to ensure the consistency of rotation between the rotating baffle 41 and the push-pull shaft 30, and under working conditions with severe vibration, the convenience and reliability of the clutch pulling and locking structure 100 can also be guaranteed.

[0096] In actual application, the number of the fixing pins 33 and the pin holes 413 can be one, two, three, etc., depending on the actual usage.

[0097] See also Figure 10 、 Figure 11 In another embodiment of the present invention, the rotating baffle 41 is provided with at least two first bolt holes 414 passing through the two plate surfaces, the shaft end of the push-pull shaft 30 is provided with at least two second bolt holes 34, and the rotating assembly 40 further includes at least two fastening bolts 70, one fastening bolt 70 is passed through one first bolt hole 414 and the through hole 11, and is inserted into one second bolt hole 34.

[0098] With such a setting, the connection reliability between the rotating baffle 41 and the push-pull shaft 30 can also be improved by tightening the bolt 70 in cooperation with the first bolt hole 414 and the second bolt hole 34, so as to ensure the consistency of rotation between the rotating baffle 41 and the push-pull shaft 30, and the convenience and reliability of the clutch pulling and locking structure 100 can also be guaranteed under working conditions with severe vibration.

[0099] See also Figure 7 In one embodiment of the present invention, a sealing ring 60 is provided between the rotating baffle 41 and the fixed disk 10 , and the sealing ring 60 is disposed around the through hole 11 .

[0100] In this way, a sealing ring 60 is provided at the joint between the rotating baffle 41 and the fixed disk 10, so that the sealing ring 60 can effectively isolate most of the dust, water mist and other impurities, thereby achieving a dustproof and waterproof effect, and can prevent the dust, spray water and other impurities generated during the operation of the coal mining machine from entering the interior of the coal mining machine through the through hole 11 of the fixed disk 10.

[0101] Exemplarily, the sealing ring 60 may be a silicone ring or a rubber ring.

[0102] In actual application, the sealing ring 60 can be fixedly installed on the side of the rotating baffle 41 close to the fixed disk 10 , or can be fixedly installed on the side of the fixed disk 10 close to the rotating baffle 41 .

[0103] See also Figure 7 In one embodiment of the present invention, a groove is provided on a side of the rotating baffle 41 close to the fixed disk 10, and a portion of the sealing ring 60 is provided in the groove.

[0104] With such a configuration, by partially installing the sealing ring 60 in the groove of the rotating baffle 41 , the installation reliability of the sealing ring 60 can be improved, thereby avoiding the problem of the sealing ring 60 falling off when the rotating baffle 41 is repeatedly pulled.

[0105] See also Figure 1 、 Figure 2 、 Figure 6 In one embodiment of the present invention, the fixing plate 10 is provided with a drainage hole 13 .

[0106] With this arrangement, after the shearer has operated for a long time, some spray water will enter the fixed plate 10. Therefore, by providing a drainage hole 13 in the fixed plate 10, water entering the shearer from outside the shearer can be promptly drained through the drainage hole 13, thereby extending the service life of the torque shaft and bearings in the shearer. Therefore, compared with conventional clutch locking structures, the clutch pull-out locking structure 100 of this solution has dust and spray water protection and drainage functions, eliminating the need for a protective cover, reducing costs, and also reducing maintenance costs.

[0107] In some embodiments, the drainage holes 13 may be provided on the limiting protrusions 12 of the fixing plate 10. Furthermore, the number of the drainage holes 13 may be determined according to actual usage, and is not specifically limited herein.

[0108] In some embodiments, during the operation of the coal mining machine, the drainage hole 13 can be blocked with a plugging cap, and when the machine is stopped, the plugging cap can be opened to perform drainage.

[0109] See also Figure 1 、 Figure 2 In one embodiment of the present invention, a limit pin 31 is provided on the outer peripheral wall of the push-pull shaft 30, and an avoidance pin hole 111 is provided on the wall of the through hole 11; when the rotating component 40 is in a separated state, the limit pin 31 and the avoidance pin hole 111 are arranged opposite to each other, so that the rotating component 40 pushes and pulls the push-pull shaft 30 along the axial direction of the push-pull shaft 30.

[0110] With such an arrangement, when the motor is assembled and put into operation, the rotating baffle 41 of the clutch pull-out locking structure 100 is located at one end of the limit slot 20a, and the locking piece 20b is partially extended into the notch of the limit slot 20a to prevent the rotating baffle 41 from automatically rotating out due to factors such as vibration; when the clutch function is required, the locking piece 20b is rotated out to a certain height, and the rotating baffle 41 is rotated into the limit slot 20a. At this time, the push-pull shaft 30 can be pulled out only when the limit pin 31 is aligned with the avoidance pin hole 111 of the fixed disk 10. Similarly, when the rotating assembly 40 is in the disengaged state, the limit pin 31 is aligned with the avoidance pin hole 111, and the rotating assembly 40 is operated to pull out the push-pull shaft 30. After the engaging teeth on the torque shaft and the main shaft are completely disengaged, the rotating assembly 40 is rotated to misalign the limit pin 31 with the avoidance pin hole 111, so that the limit pin 31 abuts against the fixed disk 10, and then the locking member 20b is partially extended into the notch of the limit groove 20a to realize the rotation limitation of the rotating baffle 41, so that the limit member 411 of the rotating assembly 40 cannot be screwed into the limit groove. At this time, the rotating assembly 40 cannot push the push-pull shaft 30 in, and the limit pin 31 must be aligned with the avoidance pin hole 111 before the push-pull shaft 30 can be pushed in, thereby effectively avoiding dangerous situations such as automatic rotation of the clutch due to improper operation of the operator.

[0111] In some embodiments, the limiting pin 31 passes through opposite sides of the push-pull shaft 30 , and avoidance pin holes 111 are provided on opposite sides of the through hole 11 , so that two avoidance pin holes 111 are used to avoid one limiting pin 31 .

[0112] See also Figures 1 to 7In some embodiments, when the coal mining machine is started, the staff operates the handle 42 to push the push-pull shaft 30 in through the rotating baffle 41. When the rotating baffle 41 contacts the fixed disk 10, the rotating baffle 41 is rotated by the handle 42 to make the limiting member 411 of the rotating baffle 41 extend into the limiting groove 20a between the limiting baffle 20 and the fixed disk 10, so that the limiting member 411 contacts the stop shoulder 121 on the limiting protrusion 12, and then the locking member 20b that is not fixed on the outside of the limiting baffle 20 is screwed into the threaded hole on the fixed disk 10, so that the locking member 20b partially extends into the notch of the limiting groove 20a to block the limiting member 411, thereby realizing the rotation limitation of the rotating baffle 41. At this time, the coal mining machine clutch becomes "closed" and coal mining operations can be carried out. When the machine needs to be shut down or power transmission is cut off, the operator unscrews the locking piece 20b on the outer side of the limit baffle 20, rotates the handle 42, and causes the limit piece 411 of the rotating baffle to disengage from the limit groove 20a to the avoidance position 20c. Then, the limit pin 31 is aligned with the avoidance pin hole 111, and the handle 42 is operated to pull the push-pull shaft 30 out through the rotating baffle 41. When the torque shaft and the meshing teeth on the main shaft are completely disengaged, the coal mining machine clutch enters the "off" state, and the torque shaft no longer transmits torque. Finally, the locking piece 20b on the outer side of the limit baffle 20 is screwed into the threaded hole on the fixed disk 10, and the handle 42 is rotated to misalign the limit pin 31 with the avoidance pin hole 111, so that the limit pin 31 abuts against the fixed disk 10. At this time, the handle 42 cannot push the push-pull shaft 30 in, which can avoid safety accidents caused by misoperation. In addition, if the overload protection torque shaft of the coal mining machine breaks, the broken shaft can also be removed by pulling the handle 42, which is convenient for maintenance and replacement.

[0113] The present invention also provides a clutch comprising a torque shaft and a clutch pull-and-lock structure 100. The specific structure of the clutch pull-and-lock structure 100 is similar to the above-described embodiments. Since the present clutch utilizes all the technical solutions of all the above-described embodiments, it possesses at least all the beneficial effects of the technical solutions of the above-described embodiments, and therefore will not be further detailed here. The torque shaft is used to engage or disengage the main shaft; the push-and-pull shaft 30 of the clutch pull-and-lock structure 100 is connected to the torque shaft.

[0114] The present invention also provides a motor comprising a motor body and a clutch. The specific structure of the clutch is similar to that of the aforementioned embodiments. Since this motor utilizes all the technical solutions of all of the aforementioned embodiments, it at least possesses all the beneficial effects brought about by the technical solutions of the aforementioned embodiments, and therefore will not be described in detail here. The motor body is provided with a main shaft; the clutch comprises a torque shaft and a clutch pull-and-lock structure 100, one end of the main shaft meshing with one end of the torque shaft, and a push-pull shaft 30 of the clutch pull-and-lock structure 100 is connected to the end of the torque shaft away from the main shaft.

[0115] In one embodiment of the present invention, the clutch pulling and locking structure 100 is embedded in the motor body.

[0116] With this arrangement, compared with the external push rod pulling structure, this solution embeds the clutch pulling and locking structure 100 inside the motor body, so that the clutch pulling and locking structure 100 occupies a small space. At the same time, it can effectively prevent the clutch pulling and locking structure 100 from being damaged by harsh working conditions such as falling rocks in the coal seam, thereby improving the service life of the coal mining machine to a certain extent.

[0117] See also Figure 6 、 Figure 7 The present invention also provides a coal mining machine comprising a shearer body and a motor. The specific structure of the motor is similar to that of the aforementioned embodiments. Since this motor utilizes all the technical solutions of all the aforementioned embodiments, it possesses at least all the beneficial effects of the technical solutions of the aforementioned embodiments, and therefore will not be further detailed here. The motor includes a motor bearing cap 200 and a clutch pull-and-lock structure 100. The fixed plate 10 of the clutch pull-and-lock structure 100 is connected to the motor bearing cap 200.

[0118] It is understandable that when the coal mining machine is started, the staff operates the rotating assembly 40 to push the push-pull shaft 30 in until the torque shaft engages with the main shaft, and rotates the rotating assembly 40 so that the limit member 411 of the rotating assembly 40 extends into the limit slot 20a between the limit baffle 20 and the fixed disk 10. At this time, the clutch is in the "closed" state, and coal mining operations can be carried out. When it is necessary to shut down the machine or cut off power transmission, the staff rotates the rotating assembly 40 so that the limit member 411 of the rotating assembly disengages from the limit slot 20a to the avoidance position 20c, and pulls the push-pull shaft 30 out through the rotating assembly 40. When the torque shaft and the meshing teeth on the main shaft are completely disengaged, the clutch is in the "open" state, and the torque shaft no longer transmits torque. In addition, by connecting the fixed disk 10 of the clutch pull-out locking structure 100 to the motor bearing cover 200, the installation reliability of the clutch pull-out locking structure 100 can be effectively guaranteed.

[0119] See also Figure 1 In one embodiment of the present invention, the motor further includes a motor end cover, and the clutch pulling and locking structure 100 is embedded in the motor end cover.

[0120] With this arrangement, compared with the external push rod pulling structure, this solution embeds the clutch pulling and locking structure 100 inside the motor end cover, so that the clutch pulling and locking structure 100 occupies a small space. At the same time, it can effectively prevent the clutch pulling and locking structure 100 from being damaged by harsh working conditions such as falling rocks in the coal seam, thereby improving the service life of the coal mining machine to a certain extent.

[0121] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A clutch pull-out locking structure, characterized in that: include: A fixed disk, wherein the fixed disk is provided with a through hole; A limit baffle, the limit baffle being arranged on one side of the fixed disk and forming a limit groove between the limit baffle and the fixed disk; a push-pull shaft, one end of which is passed through the through hole, and the other end of which extends in a direction away from the limit baffle and is used to connect with the torque shaft; A rotating assembly connected to the push-pull shaft and provided on a side of the fixed disk where the limit baffle is provided. The rotating assembly can rotate relative to the fixed disk and has a locked state and a separated state. The rotating assembly is provided with a limit member; When the rotating assembly is in a locked state, the limiting member extends into the limiting groove and cooperates with the limiting groove; when the rotating assembly is in a separated state, the limiting member escapes from the limiting groove, and the rotating assembly can push and pull the push-pull shaft along the axial direction of the push-pull shaft; The fixed plate is provided with a limiting protrusion on one side of the limiting baffle, and a stop shoulder is provided on one side of the limiting protrusion, and the limiting baffle is connected to the stop shoulder; when the rotating assembly is in a locked state, the limiting member extends into the limiting groove and abuts against the stop shoulder; A detachable locking member is provided on a side of the limiting baffle away from the blocking shoulder; when the rotating assembly is in a locked state, the locking member at least partially extends into the notch of the limiting groove to block the limiting member; The limiting baffle includes a connecting plate and a limiting plate; the connecting plate is connected to the baffle shoulder; the limiting plate is connected to the connecting plate, and the limiting groove is formed between the limiting plate and the fixed disk, and the limiting plate is extended along the circumference of the fixed disk.

2. The clutch pulling and locking structure according to claim 1, characterized in that: There are at least two of the limiting protrusions and the limiting baffles. In the circumferential direction of the fixed disk, one limiting baffle is provided between two adjacent limiting protrusions, and one limiting baffle is connected to a shoulder of one limiting protrusion. The rotating assembly is provided with at least two limiting members. When the rotating assembly is in a locked state, one limiting member extends into one limiting groove.

3. The clutch pulling and locking structure according to claim 2, characterized in that: The limiting protrusions are extended along the circumference of the fixed disk, and an avoidance position is formed between the limiting baffle connected to one of the limiting protrusions and the other limiting protrusion; When the rotating assembly is in a separated state, the limiting member is located in the avoidance position.

4. The clutch pulling and locking structure according to any one of claims 1 to 3, characterized in that: The rotating assembly comprises: a rotating baffle, the rotating baffle being connected to the push-pull shaft and provided with the limiting member; A handle is connected to a side of the rotating baffle away from the fixed disk.

5. The clutch pulling and locking structure according to claim 4, characterized in that: The rotating baffle is connected to the push-pull shaft through a fastener.

6. The clutch pulling and locking structure according to claim 5, characterized in that: The rotating baffle is provided with a first center hole passing through the two plate surfaces, the shaft end of the push-pull shaft is provided with a second center hole, the fastener is passed through the first center hole and the through hole, and is inserted into the second center hole.

7. The clutch pulling and locking structure according to claim 6, characterized in that: The plate surface of the rotating baffle facing the push-pull shaft is provided with a pin hole located on one side of the first center hole, and the shaft end of the push-pull shaft is also provided with a fixing pin located on one side of the second center hole, and the fixing pin is inserted into the pin hole.

8. The clutch pulling and locking structure according to claim 4, characterized in that: The rotating baffle is provided with at least two first bolt holes passing through the two plate surfaces, the shaft end of the push-pull shaft is provided with at least two second bolt holes, and the rotating assembly also includes at least two fastening bolts, one of the fastening bolts is passed through one of the first bolt holes and the through hole, and is inserted into one of the second bolt holes.

9. The clutch pulling and locking structure according to claim 4, characterized in that: A sealing ring is provided between the rotating baffle and the fixed disk, and the sealing ring is arranged around the through hole.

10. The clutch pulling and locking structure according to claim 9, characterized in that: A groove is provided on one side of the rotating baffle close to the fixed disk, and the sealing ring is partially arranged in the groove.

11. The clutch pulling and locking structure according to any one of claims 1 to 3, characterized in that: The fixing plate is provided with a drainage hole.

12. The clutch pulling and locking structure according to any one of claims 1 to 3, characterized in that: The outer peripheral wall of the push-pull shaft is provided with a limit pin, and the hole wall of the through hole is provided with an avoidance pin hole; When the rotating assembly is in a separated state, the limiting pin and the avoidance pin hole are arranged opposite to each other, so that the rotating assembly pushes and pulls the push-pull shaft along the axial direction of the push-pull shaft.

13. A clutch, characterized in that: include: Torque shaft, used for clutching with the main shaft; The clutch pulling and locking structure according to any one of claims 1 to 12, wherein the push-pull shaft of the clutch pulling and locking structure is connected to the torque shaft.

14. A motor, characterized in that: include: A motor body, wherein the motor body is provided with a main shaft; The clutch as described in claim 13 includes a torque shaft and a clutch pull-and-lock structure, one end of the main shaft is engaged with one end of the torque shaft, and the push-pull shaft of the clutch pull-and-lock structure is connected to the end of the torque shaft away from the main shaft.

15. The motor according to claim 14, wherein The clutch pulling and locking structure is embedded in the motor body.

16. A coal mining machine, characterized in that: include: Coal mining machine body; The motor according to claim 14 or 15, comprises a motor bearing cover and a clutch pull-and-lock structure, wherein the fixed disk of the clutch pull-and-lock structure is connected to the motor bearing cover.

17. The coal mining machine according to claim 16, characterized in that The motor further comprises a motor end cover, and the clutch pulling and locking structure is embedded in the motor end cover.

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