CN212785091U - Electric reversing device of mining direct current motor - Google Patents
Electric reversing device of mining direct current motor Download PDFInfo
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- CN212785091U CN212785091U CN202020351297.7U CN202020351297U CN212785091U CN 212785091 U CN212785091 U CN 212785091U CN 202020351297 U CN202020351297 U CN 202020351297U CN 212785091 U CN212785091 U CN 212785091U
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Abstract
The utility model discloses a mining direct current motor electric reversing arrangement, include: the reversing piece can rotate along the axis of the reversing piece; axial brasses (9) and circumferential brasses (10) which are arranged on the outer side of the reversing piece in a left-right symmetrical mode along the central axis of the reversing piece; a plurality of finger-shaped contact tips (1) which can intermittently contact the circumferential copper shoes (10) and the axial copper shoes (9) when the reversing element rotates; the driving component drives the reversing piece to rotate; the reversing piece is further provided with a cam (13) rotating together with the reversing piece, a first switch (11) and a second switch (12) for controlling the current on-off of the finger-shaped contact (1) are symmetrically arranged on the left side and the right side of the cam (13), and the cam (13) is abutted to the first switch (11) and the second switch (12).
Description
Technical Field
The utility model belongs to the electrical equipment field particularly, is a mining direct current motor electric reversing arrangement.
Background
The traditional mining direct current motor reversing technologies comprise a manual reversing technology of a reversing hub and an electric reversing technology of a direct current contactor. The advantage of the manual switching-over of switching-over wheel hub is that simple structure, switching-over are reliable, the cost is lower, under the power-off state, it also can maintain work, its defect lies in: and cannot be remotely controlled. The advantage of direct current contactor electrodynamic commutation can remote control, and its defect lies in: the structure is complex, the volume is large, the cost is high, and if the power failure phenomenon occurs, the whole system cannot work and is unreliable. Meanwhile, the current of a plurality of direct current motor reversing devices is always maintained in a power-on state when the direct current motor for the mine works, and the mining direct current motor is large in power-on current when the mining direct current motor works, so that the safety of the working state is not facilitated, and meanwhile, the abrasion of materials and the waste of energy are caused.
SUMMERY OF THE UTILITY MODEL
For being directed against above-mentioned technical problem, the utility model aims at providing a can reliably maintain the motor switching-over under the power failure, can realize remote control's mining direct current motor switching-over device, the device is when being in switching-over operating condition simultaneously, with the current disconnection, switch-on current again after the switching-over is ended, has guaranteed operating condition's safety, and it includes:
the utility model provides a mining direct current motor electrically operated reversing device which characterized in that includes:
the reversing piece can rotate around the axis of the reversing piece;
the first conduction pieces and the second conduction pieces extend along a first direction and a second direction respectively and are arranged on the peripheral surface of the reversing piece;
the contact points of the finger-shaped contact terminals are abutted against the reversing piece and intermittently contacted with the first conducting piece or the second conducting piece when the reversing piece rotates;
the driving component drives the reversing piece to rotate;
the cam and the reversing piece are arranged in a synchronous rotating mode, and a first switch and a second switch which are matched with the cam are arranged beside the cam;
the mining direct current motor electric reversing device at least comprises three working states, including:
a reverse power-off state in which the protruding portion of the cam does not abut against the first switch and the second switch, and the contact points of the finger-shaped contact are disengaged from the first conducting piece or the second conducting piece;
a first conductive state in which the protruding portion of the cam abuts only the first switch, the contact points of the two finger contacts on the left side are connected by one of the first conductive members, and the contact points of the two finger contacts on the right side are connected by the other of the first conductive members;
and a second conductive state in which the protruding portion of the cam abuts only the second switch, and the contact points of the finger contacts on the left and right sides are connected by the two second conductive members.
Further, the reversing piece is a cylindrical reversing hub.
Further, the first direction is an axial direction of the reversing hub, and the second direction is a circumferential direction of the reversing hub.
Further, the first conducting piece is an axial copper tile, the second conducting piece is a circumferential copper tile,
further, the axial brasses are arranged at intervals along the circumferential direction, and the circumferential brasses are arranged at intervals along the axial direction.
Furthermore, the contact device comprises eight finger-shaped contacts, four axial copper shoes and four circumferential copper shoes, wherein the eight finger-shaped contacts are distributed at four sides in a bilateral symmetry manner and are arranged along the axial direction, and the four axial copper shoes are arranged in a pairwise bilateral symmetry manner.
Further, still include first L template, with second L template and the connection that first L template symmetry set up from top to bottom first L template the connecting plate of first L template, second L template, the central axis department of switching-over wheel hub runs through and is provided with the switching-over drum axle that drives its rotation, and its one end runs through first L template with drive assembly connects, and the other end runs through second L template with the cam is connected, the switching-over drum axle is located the through-hole department cover that runs through of first L template with second L template is equipped with the copper bush.
Furthermore, the driving assembly comprises a torque motor and a motor shaft sleeve sleeved at the output end of the torque motor, a shaft nail is arranged on the motor shaft sleeve, a reversing wheel shaft sleeve is sleeved outside the end part, close to the driving assembly, of the reversing drum shaft, a plurality of shaft nail holes corresponding to the shaft nail are formed in one side, close to the motor shaft sleeve, of the reversing wheel shaft, and the motor shaft sleeve is inserted into the reversing wheel shaft sleeve through the matching between the shaft nail and the shaft nail holes.
Furthermore, a reversing module for processing remote signals is further mounted on the second L-shaped plate.
Compared with the prior art, the utility model provides a mining direct current motor electric reversing device has following advantage:
1. the device can control the commutation of 2 mining direct current motors simultaneously, and can also control the commutation of 1 mining direct current motor with double power in a mode of respectively connecting 2 circumferential conductive copper blocks and 2 axial conductive copper blocks in parallel so as to adapt to the commutation of a high-power direct current motor;
2. through the design of the cam, the first switch and the second switch, no current passes through the finger-shaped contact when the device is in a reversing power-off state, so that the safety of the device in use is ensured, and energy is saved;
3. the reversing module for processing remote signals is designed, so that the device can maintain the motor reversing through an independent motor or manpower under the condition of power failure, and remote control can be realized.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a side sectional view of the present invention;
FIG. 3 is a partially exploded view of the drive assembly of the present invention;
fig. 4 is a schematic perspective view of the present invention in a reversing power-off state;
FIG. 5 is a schematic view of the position of the cam in the reverse power-off state of the present invention;
fig. 6 is a schematic perspective view of the present invention in a second on state;
fig. 7 is a schematic view of the position of the cam in the second on state of the present invention;
fig. 8 is a schematic perspective view of the finger of the present invention in a first on state;
fig. 9 is a schematic view of the cam position when the present invention is in the first on state;
the designations in the figures illustrate the following:
1-finger contacts; 2-a torque motor; 3-motor shaft sleeve; 4-reversing wheel shaft sleeve; 5-shaft nail; 6-shaft nail hole; 7-reversing drum shaft holes; 8-a reversing hub; 9-axial brasses; 10-circumferential brasses; 11-a first switch; 12-a second switch; 13-a cam; 14-a reversing drum shaft; 15-a first L-shaped plate; 16-a second L-shaped plate; 17-a connecting plate; 18-copper bush; 19-a commutation module.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1-9, an electric reversing device of a mining direct current motor comprises a reversing piece capable of rotating around the axis of the reversing piece; the first conduction pieces and the second conduction pieces extend along a first direction and a second direction respectively and are arranged on the peripheral surface of the reversing piece; the finger-shaped contacts 1 are arranged symmetrically left and right in pairs, and the contacts of the finger-shaped contacts 1 are abutted against the reversing piece and intermittently contacted with the first conducting piece or the second conducting piece when the reversing piece rotates; the driving component drives the reversing piece to rotate; the cam 13 is arranged in a manner of rotating synchronously with the reversing piece, and a first switch 11 and a second switch 12 which are matched with the cam 13 are arranged beside the cam 13; the mining direct current motor electric reversing device at least comprises three working states, including: a reverse de-energized state, in which the projection of the cam 13 does not abut against the first switch 11 and the second switch 12, and the contacts of the finger contacts 1 are both disengaged from the first conducting member or the second conducting member; a first conductive state in which the protruding portion of the cam 13 abuts only the first switch 11, the contact points of the two finger contacts 1 on the left side are connected by one first conductive member, and the contact points of the two finger contacts 1 on the right side are connected by the other first conductive member; in the second conductive state, the protruding portion of the cam 13 abuts only the second switch 12, and the contact points of the finger contacts 1 on both left and right sides are connected by the two second conductive members.
In this embodiment, the reversing element is a cylindrical reversing hub 8, and in other embodiments, other types of reversing elements such as a conical reversing element, a rectangular reversing element, etc. may be used.
In this embodiment, eight finger-shaped contacts 1, four axial copper shoes 9 and four circumferential copper shoes 10 are provided, every four finger-shaped contacts 1 form one group, two groups of finger-shaped contacts 1 are arranged and distributed on two sides of the axis of the reversing member in a bilateral symmetry manner, four axial copper shoes 9 are arranged in pairs, and each group of axial copper shoes 9 is arranged along the axial direction of the reversing member. As can be seen from the above description, the first switch 11 and the second switch 12 are opened and closed as the cam 13 rotates to the corresponding positions, so as to ensure zero current during the commutation switching operation, and when the finger-shaped contact 1 contacts with the copper shoe, the switches are pressed to switch on the current, and the finger-shaped contact 1 contacts with different copper shoes, so that the trend of the current is changed, and the commutation of the dc motor is realized. Meanwhile, the device can control the commutation of 2 mining direct current motors at the same time, and can also control the commutation of 1 double-power mining direct current motor in a mode of respectively connecting 2 circumferential copper shoes 10 and 2 axial copper shoes 9 in parallel so as to adapt to the commutation of a high-power direct current motor.
In this embodiment, still include first L template 15, with second L template 16 and the connection that first L template 15 symmetry about set up first L template 15, the connecting plate 17 of second L template 16, the central axis department of switching-over wheel hub 8 runs through and is provided with the switching-over drum axle 14 that drives its rotation, and its one end runs through first L template 15 with drive assembly connects, and the other end runs through second L template 16 with cam 13 is connected, switching-over drum axle 14 is located first L template 15 with the through hole department cover that runs through of second L template 16 is equipped with copper bush 18.
In this embodiment, the driving assembly includes a torque motor 2 and a motor shaft sleeve 3 sleeved at an output end of the torque motor 2, four shaft nails 5 are arranged on the motor shaft sleeve 3, a reversing drum shaft 14 is close to the driving assembly, a reversing wheel shaft sleeve 4 is sleeved outside an end portion of one end of the driving assembly, one side of the reversing wheel shaft sleeve 4 close to the motor shaft sleeve 3 is provided with four shaft nail holes 6 corresponding to the four shaft nails 5, and the motor shaft sleeve 3 is inserted in the reversing wheel shaft sleeve 4 through matching between the shaft nails 5 and the shaft nail holes 6.
In the present embodiment, the first switch 11 and the second switch 12 are both disposed on the side of the second L-shaped plate 16 where the cam 13 is disposed.
In this embodiment, still install the switching-over module 19 of handling remote signal on the second L template 16, switching-over module 19 can work through remote control signal to realize the switching-over action of remote control electric locomotive, its technical characterstic is the prior art that communication field technical personnel are familiar with, is not the utility model discloses a main innovation point, therefore do not explain here in detail.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (8)
1. The utility model provides a mining direct current motor electrically operated reversing device which characterized in that includes:
the reversing piece can rotate around the axis of the reversing piece;
the first conduction pieces and the second conduction pieces extend along a first direction and a second direction respectively and are arranged on the peripheral surface of the reversing piece;
the finger-shaped contacts (1) are arranged symmetrically left and right in pairs, and the contacts of the finger-shaped contacts (1) are abutted against the reversing piece and intermittently contacted with the first conducting piece or the second conducting piece when the reversing piece rotates;
the driving component drives the reversing piece to rotate;
the cam (13) is synchronously arranged with the reversing piece in a rotating mode, and a first switch (11) and a second switch (12) matched with the cam (13) are arranged beside the cam (13);
the mining direct current motor electric reversing device at least comprises three working states, including:
a commutation power-off state, in which the projection of the cam (13) does not abut against the first switch (11) and the second switch (12), the contacts of the finger contacts (1) being disengaged from the first or second conductive piece;
a first conduction state in which the protruding portion of the cam (13) is in contact with only the first switch (11), the contact points of the two finger contacts (1) on the left side are connected by one first conduction member, and the contact points of the two finger contacts (1) on the right side are connected by the other first conduction member;
and a second conduction state in which the protruding portion of the cam (13) is in contact with only the second switch (12), and the contact points of the finger contacts (1) on the left and right sides are connected by two second conduction pieces.
2. A mining dc motor electrodynamic commutation apparatus according to claim 1, in which the commutation member is a cylindrical commutation hub (8).
3. The mining direct-current motor electric reversing device according to claim 2, characterized in that the first direction is an axial direction of the reversing hub (8), and the second direction is a circumferential direction of the reversing hub (8).
4. The mining direct-current motor electric reversing device according to claim 1, characterized in that the first conducting member is an axial copper shoe (9), the second conducting member is a circumferential copper shoe (10), the axial copper shoes (9) are arranged at intervals in the circumferential direction, and the circumferential copper shoes (10) are arranged at intervals in the axial direction.
5. The mining direct-current motor electric reversing device according to claim 4 is characterized by comprising eight finger-shaped contacts (1), four axial copper shoes (9) and four circumferential copper shoes (10), wherein each four finger-shaped contacts (1) form one group, two groups of finger-shaped contacts (1) are symmetrically arranged on two sides of the axis of the reversing piece, the four axial copper shoes (9) are arranged in a group in pairs, and each group of axial copper shoes (9) are arranged along the axial direction of the reversing piece.
6. The mining direct-current motor electric reversing device according to claim 2, characterized by further comprising a first L-shaped plate (15), a second L-shaped plate (16) which is vertically and symmetrically arranged with the first L-shaped plate (15), and a connecting plate (17) which is connected with the first L-shaped plate (15) and the second L-shaped plate (16), wherein a reversing drum shaft (14) which drives the reversing drum to rotate is arranged at the central axis of the reversing hub (8) in a penetrating manner, one end of the reversing drum shaft penetrates through the first L-shaped plate (15) to be connected with the driving assembly, the other end of the reversing drum shaft penetrates through the second L-shaped plate (16) to be connected with the cam (13), and a copper shaft sleeve (18) is sleeved at through holes of the first L-shaped plate (15) and the second L-shaped plate (16).
7. The mining direct-current motor electric reversing device according to claim 6, characterized in that the driving assembly comprises a torque motor (2) and a motor shaft sleeve (3) sleeved at an output end of the torque motor (2), a shaft nail (5) is arranged on the motor shaft sleeve (3), a reversing wheel shaft sleeve (4) is sleeved outside an end portion, close to the driving assembly, of the reversing drum shaft (14), a plurality of shaft nail holes (6) corresponding to the shaft nail (5) are formed in one side, close to the motor shaft sleeve (3), of the reversing wheel shaft sleeve (4), and the motor shaft sleeve (3) is inserted into the reversing wheel shaft sleeve (4) through matching between the shaft nail (5) and the shaft nail hole (6).
8. A mining direct current motor electric commutation apparatus according to claim 7, wherein the second L-shaped plate (16) is further mounted with a commutation module (19) for processing remote signals.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922239700 | 2019-12-14 | ||
| CN2019222397007 | 2019-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212785091U true CN212785091U (en) | 2021-03-23 |
Family
ID=75026017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020351297.7U Active CN212785091U (en) | 2019-12-14 | 2020-03-19 | Electric reversing device of mining direct current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212785091U (en) |
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2020
- 2020-03-19 CN CN202020351297.7U patent/CN212785091U/en active Active
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