Device for rapidly replacing cutting teeth of coal mining machine

Abstract

The utility model discloses a device for rapidly replacing cutting teeth of a coal mining machine, and relates to the technical field of coal mining machine maintenance equipment. The device for rapidly replacing the cutting teeth of the coal mining machine comprises a first handle rod, a second handle rod is arranged above the first handle rod, a fixing assembly is arranged between the second handle rod and the first handle rod, and the bottom and the top of the fixing assembly are rotationally connected with the first handle rod and the second handle rod correspondingly; a holding assembly is inserted into an inner cavity of the fixing assembly, one side of the middle of the fixing assembly penetrates through one end of the holding assembly, the fixing assembly comprises a fixing block, an insertion hole is formed in one side wall of the fixing block, and the insertion hole penetrates through the fixing block; and a first limiting screw hole used for being rotationally connected with the first handle rod is formed in the bottom of the fixing block. According to the cutting pick, the time required for replacing the cutting pick is greatly shortened, and the safety of operating personnel is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining machine maintenance equipment, in particular to a device for quickly replacing coal mining machine picks. Background Art

[0002] The rocker arm idler wheel of a coal mining machine is one of the key components of the coal mining machine. It is usually composed of an idler gear ring, an idler roller and a bearing. A coal mining machine is a special equipment used for mining coal. The rocker arm is one of its important working parts. The function of the rocker arm idler wheel is to support and guide the movement of the rocker arm, and to play a stabilizing and balancing role in the coal mining process. In order to ensure the normal operation of the coal mining machine, the rocker arm idler wheel needs to be inspected and maintained frequently. The wear of the idler gear ring and the idler roller should be checked regularly, and oiling and maintenance should be performed to ensure its normal operation and extend its service life. In addition, severely worn or damaged parts should be replaced in time to avoid production accidents caused by idler wheel failure.

[0003] However, the installation space of the rocker arm idler of the coal mining machine is small, the rocker arm idler is bulky, and it is difficult to align the idler shaft hole with the pin hole of the machine body during installation, which increases the difficulty of installation. Therefore, we propose a quick-replacement coal mining machine pick tooth device to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a device for quickly replacing coal mining machine pick teeth, which solves the problem that the idler wheel shaft hole and the pin hole of the machine body are difficult to align during installation due to the small installation space of the coal mining machine rocker arm idler wheel and the heavy rocker arm idler wheel, thereby increasing the difficulty of installation.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a device for quickly replacing picks for a coal mining machine, comprising a first handle bar, a second handle bar is arranged above the first handle bar, a fixing assembly is arranged between the second handle bar and the first handle bar, and the bottom and top of the fixing assembly are rotatably connected to the first handle bar and the second handle bar respectively;

[0006] A holding component is inserted into the inner cavity of the fixing component, and one side of the middle portion of the fixing component passes through one end of the holding component.

[0007] Preferably, the fixing assembly comprises a fixing block, a side wall of the fixing block is provided with an insertion hole, and the insertion hole passes through the fixing block, a first limiting screw hole for rotatably connecting the first handle rod is provided at the bottom of the fixing block, and a second limiting screw hole for rotatably connecting the second handle rod is provided at the top of the fixing block;

[0008] Through holes are provided at the top and bottom of the fixing block and outside the first limiting screw hole, and the inner cavities of the two through holes are conductively connected to the plug hole, and the two inner cavities of the through holes are connected by an anti-slip portion, and the anti-slip portion passes through one end of the holding component.

[0009] Preferably, the anti-slip portion includes a fixing screw passing through the inner cavities of the two through holes, the fixing screw passes through one end of the holding assembly, the top end of the fixing screw is rotatably connected to a fixing nut, and a pin hole is opened on one side wall of the fixing screw.

[0010] Preferably, the holding assembly comprises a handlebar, and both sides of one end of the handlebar are provided with limiting grooves, and one end of the handlebar is located at the position of the limiting groove and is plugged and connected to the inner cavity of the socket;

[0011] A positioning hole for passing the fixing screw is provided on one side of the top surface of the limiting groove.

[0012] Preferably, a stepped screw hole is opened in the middle of one end of the handlebar, and one end of the stepped screw hole is conductively connected to the inner cavity of the positioning hole, a positioning screw is rotatably connected to the inner cavity of the stepped screw hole, and one end of the positioning screw is plugged into the inner cavity of the pin hole.

[0013] Preferably, the inner diameter of the positioning hole is the same as the outer diameter of the fixing screw, and the two are plug-connected.

[0014] Preferably, a groove ring is provided on one side of the middle portion of the handlebar, and an anti-slip sleeve is provided in the inner cavity of the groove ring.

[0015] Beneficial Effects

[0016] The utility model provides a device for quickly replacing pick teeth of a coal mining machine. Compared with the prior art, it has the following beneficial effects:

[0017] The device for quickly replacing coal mining machine pick teeth can be fixed to one end of the holding component and the first handle and the second handle can be installed through the fixing component. When the coal mining machine pick teeth need to be quickly replaced, the staff can select the appropriate first handle or the second handle according to the model of the coal mining machine pick teeth, and then place one end of the first handle or the second handle against the top surface of the coal mining machine pick teeth. The holding component can keep the first handle or the second handle rod stable, and then the other first handle rod or the second handle rod can be knocked downward by a hammer, thereby driving the first handle rod or the second handle rod to move downward, and then the coal mining machine pick teeth can be pushed downward, so that the coal mining machine pick teeth can be quickly replaced and the safety of the operators can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the side structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing component of the utility model;

[0021] Figure 4 This is a schematic diagram of the anti-slip structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the holding component of the utility model.

[0023] In the figure: 1. first handle rod; 2. second handle rod; 3. fixing assembly; 31. fixing block; 32. insertion hole; 33. first limiting screw hole; 34. second limiting screw hole; 35. through hole; 36. anti-slip part; 361. fixing screw; 362. fixing nut; 363. pin hole; 4. holding assembly; 41. handle rod; 42. limiting groove; 43. positioning hole; 44. stepped screw hole; 45. positioning screw; 46. groove ring; 47. anti-slip sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-2 The utility model provides a technical solution: a device for quickly replacing picks of a coal mining machine, comprising a first handle bar 1, a second handle bar 2 is arranged above the first handle bar 1, a fixing assembly 3 is arranged between the second handle bar 2 and the first handle bar 1, and the bottom and the top of the fixing assembly 3 are rotatably connected with the first handle bar 1 and the second handle bar 2 respectively; a holding assembly 4 is inserted into the inner cavity of the fixing assembly 3, and one side of the middle part of the fixing assembly 3 passes through one end of the holding assembly 4;

[0026] Through the fixing component 3, it can be fixed to one end of the holding component 4, and the first handle rod 1 and the second handle rod 2 can be installed. When the coal mining machine pick needs to be quickly replaced, the staff can select the appropriate first handle rod 1 or second handle rod 2 according to the model of the coal mining machine pick, and then put one end of the first handle rod 1 or the second handle rod 2 against the top surface of the coal mining machine pick, and through the holding component 4, the first handle rod 1 or the second handle rod 2 can be kept stable, and then the other first handle rod 1 or the second handle rod 2 can be knocked downward by a hammer, so as to drive the first handle rod 1 or the second handle rod 2 to move downward, and then the coal mining machine pick can be pushed downward, so that the coal mining machine pick can be quickly replaced and the safety of the operators can be ensured.

[0027] See also Figure 2-Figure 4 The fixing assembly 3 includes a fixing block 31, a plug hole 32 is provided on one side wall of the fixing block 31, and the plug hole 32 passes through the fixing block 31, a first limiting screw hole 33 for rotatably connecting to the first handle rod 1 is provided at the bottom of the fixing block 31, and a second limiting screw hole 34 for rotatably connecting to the second handle rod 2 is provided at the top of the fixing block 31; through holes 35 are provided on the top and bottom of the fixing block 31 and located outside the first limiting screw hole 33, and the inner cavities of the two through holes 35 are conductively connected to the plug hole 32, the inner cavities of the two through holes 35 are connected by an anti-slipping portion 36, and the anti-slipping portion 36 passes through one end of the holding assembly 4, the anti-slipping portion 36 includes a fixing screw 361 that passes through the inner cavities of the two through holes 35, the fixing screw 361 passes through one end of the holding assembly 4, the top of the fixing screw 361 is rotatably connected to a fixing nut 362, and a pin hole 363 is provided on one side wall of the fixing screw 361;

[0028] The fixing block 31 in the fixing component 3 can be installed at one end of the holding component 4 through the insertion hole 32, and space can be provided for the first limiting screw hole 33, the second limiting screw hole 34 and the two through holes 35. Then, through the first limiting screw hole 33 and the second limiting screw hole 34, it is convenient for the staff to disassemble and assemble the first handle rod 1 and the second handle rod 2 respectively, so that the first handle rod 1 and the second handle rod 2 can be used or replaced. The fixing screw 361 can be plugged and installed through the through hole 35, and the fixing screw 361 can pass through one end of the holding component 4, so that one end of the holding component 4 can be connected to the fixing block 31. Then, by rotating the fixing nut 362, the fixing screw 361 can be fixed, so as to prevent the fixing screw 361 from falling off from the through hole 35. Through the pin hole 363, it can be connected to the holding component 4, which can further limit the fixing screw 361.

[0029] See also Figure 2-Figure 5The holding assembly 4 includes a handlebar 41, and both sides of one end of the handlebar 41 are provided with limiting grooves 42, and one end of the handlebar 41 is located at the position of the limiting groove 42 and is plugged and connected with the inner cavity of the jack 32; a positioning hole 43 for passing the fixing screw 361 is provided on one side of the top surface of the limiting groove 42, and a stepped screw hole 44 is provided in the middle of one end of the handlebar 41, and one end of the stepped screw hole 44 is connected with the inner cavity of the positioning hole 43, and a positioning screw 45 is rotatably connected to the inner cavity of the stepped screw hole 44, and one end of the positioning screw 45 is plugged and connected with the inner cavity of the pin hole 363, the inner diameter of the positioning hole 43 is the same as the outer diameter of the fixing screw 361, and the two are plugged and connected, a groove ring 46 is provided on one side of the middle part of the handlebar 41, and an anti-slip sleeve 47 is provided in the inner cavity of the groove ring 46;

[0030] Through the handlebar 41 in the holding component 4, it can be inserted into the inner cavity of the socket 32 ​​on the fixed block 31 through the limiting groove 42, and space can be provided for the positioning hole 43, the stepped screw hole 44 and the groove ring 46. Then, the fixing screw 361 can be inserted and installed through the positioning hole 43, so that the fixing screw 361 can initially limit the handlebar 41. Then, by rotating the positioning screw 45 in the stepped screw hole 44, one end of the positioning screw 45 can be inserted into the pin hole 363, thereby preventing the fixing screw 361 from falling off and separating from the positioning hole 43, further improving the stability of the connection between the handlebar 41 and the fixed block 31, and the anti-slip sleeve 47 can be installed through the groove ring 46, thereby improving the stability of the staff holding the handlebar 41.

[0031] During operation, the fixing component 3 can be fixed to one end of the holding component 4, and the first handle rod 1 and the second handle rod 2 can be installed. When the coal mining machine pick needs to be quickly replaced, the staff can select the appropriate first handle rod 1 or the second handle rod 2 according to the model of the coal mining machine pick, and then place one end of the first handle rod 1 or the second handle rod 2 against the top surface of the coal mining machine pick, and through the holding component 4, the first handle rod 1 or the second handle rod 2 can be kept stable, and then the other first handle rod 1 or the second handle rod 2 can be knocked downward by a hammer, thereby driving the first handle rod 1 or the second handle rod 2 to move downward, and then the coal mining machine pick can be pushed downward, so that the coal mining machine pick can be quickly replaced and the safety of the operators can be ensured.

[0032] The fixing block 31 in the fixing component 3 can be installed at one end of the holding component 4 through the insertion hole 32, and space can be provided for the first limiting screw hole 33, the second limiting screw hole 34 and the two through holes 35. Then, through the first limiting screw hole 33 and the second limiting screw hole 34, it is convenient for the staff to disassemble and assemble the first handle rod 1 and the second handle rod 2 respectively, so that the first handle rod 1 and the second handle rod 2 can be used or replaced. The fixing screw 361 can be plugged and installed through the through hole 35, and the fixing screw 361 can pass through one end of the holding component 4, so that one end of the holding component 4 can be connected to the fixing block 31. Then, by rotating the fixing nut 362, the fixing screw 361 can be fixed, so as to prevent the fixing screw 361 from falling off from the through hole 35. Through the pin hole 363, it can be connected to the holding component 4, which can further limit the fixing screw 361.

[0033] Through the handlebar 41 in the holding component 4, it can be inserted into the inner cavity of the socket 32 ​​on the fixed block 31 through the limiting groove 42, and space can be provided for the positioning hole 43, the stepped screw hole 44 and the groove ring 46. Then, the fixing screw 361 can be inserted and installed through the positioning hole 43, so that the fixing screw 361 can initially limit the handlebar 41. Then, by rotating the positioning screw 45 in the stepped screw hole 44, one end of the positioning screw 45 can be inserted into the pin hole 363, thereby preventing the fixing screw 361 from falling off and separating from the positioning hole 43, further improving the stability of the connection between the handlebar 41 and the fixed block 31, and the anti-slip sleeve 47 can be installed through the groove ring 46, thereby improving the stability of the staff holding the handlebar 41.

[0034] In summary, the device greatly shortens the time required for replacing picks and ensures the safety of operators.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A device for quickly replacing pick teeth of a coal mining machine, characterized in that: The invention comprises a first handle bar (1), a second handle bar (2) is arranged above the first handle bar (1), a fixing component (3) is arranged between the second handle bar (2) and the first handle bar (1), and the bottom and the top of the fixing component (3) are rotatably connected to the first handle bar (1) and the second handle bar (2) respectively; The inner cavity of the fixing component (3) is plugged with a holding component (4), and one side of the middle portion of the fixing component (3) passes through one end of the holding component (4).

2. A device for quickly replacing coal mining machine picks according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing block (31), a side wall of the fixing block (31) is provided with an insertion hole (32), and the insertion hole (32) passes through the fixing block (31), a bottom of the fixing block (31) is provided with a first limiting screw hole (33) for rotatably connecting to the first handle rod (1), and a top of the fixing block (31) is provided with a second limiting screw hole (34) for rotatably connecting to the second handle rod (2); Through holes (35) are provided at the top and bottom of the fixing block (31) and outside the first limiting screw hole (33), and the inner cavities of the two through holes (35) are conductively connected to the insertion hole (32), and the inner cavities of the two through holes (35) are connected via an anti-slip portion (36), and the anti-slip portion (36) passes through one end of the holding component (4).

3. A device for quickly replacing coal mining machine picks according to claim 2, characterized in that: The anti-slip portion (36) comprises a fixing screw (361) penetrating the inner cavities of the two through holes (35); the fixing screw (361) penetrates one end of the holding assembly (4); a fixing nut (362) is rotatably connected to the top of the fixing screw (361); and a pin hole (363) is provided on one side wall of the fixing screw (361).

4. A device for quickly replacing coal mining machine picks according to claim 3, characterized in that: The holding assembly (4) comprises a handlebar (41), and limiting grooves (42) are provided on both sides of one end of the handlebar (41); one end of the handlebar (41) is located at the position of the limiting groove (42) and is plugged and connected to the inner cavity of the insertion hole (32); A positioning hole (43) for passing the fixing screw (361) is provided on one side of the top surface of the limiting groove (42).

5. A device for quickly replacing picks for a coal mining machine according to claim 4, characterized in that: A stepped screw hole (44) is provided in the middle of one end of the handle bar (41), and one end of the stepped screw hole (44) is conductively connected to the inner cavity of the positioning hole (43). A positioning screw (45) is rotatably connected to the inner cavity of the stepped screw hole (44), and one end of the positioning screw (45) is plugged and connected to the inner cavity of the pin hole (363).

6. A device for quickly replacing coal mining machine picks according to claim 5, characterized in that: The inner diameter of the positioning hole (43) is the same as the outer diameter of the fixing screw (361), and the two are plug-connected.

7. A device for quickly replacing picks for a coal mining machine according to claim 4, characterized in that: A groove ring (46) is provided on one side of the middle portion of the handlebar (41), and an anti-slip sleeve (47) is provided in the inner cavity of the groove ring (46).

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