CN219945401U - Belt pulley assembly device and numerical control lathe - Google Patents
Belt pulley assembly device and numerical control lathe Download PDFInfo
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- CN219945401U CN219945401U CN202320933987.7U CN202320933987U CN219945401U CN 219945401 U CN219945401 U CN 219945401U CN 202320933987 U CN202320933987 U CN 202320933987U CN 219945401 U CN219945401 U CN 219945401U
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- pulley
- belt pulley
- connecting sleeve
- gland
- tensioning connecting
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- 210000004907 gland Anatomy 0.000 claims description 51
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000008439 repair process Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Pulleys (AREA)
Abstract
The belt pulley assembly device comprises a first belt pulley arranged on a belt pulley supporting seat, wherein the first belt pulley is provided with a first belt pulley inner hole for an external shaft to penetrate, a first tensioning connecting sleeve and a second tensioning connecting sleeve are detachably arranged in the first belt pulley inner hole, the first tensioning connecting sleeve is arranged at one end close to the belt pulley supporting seat and is connected with the first belt pulley through a first fastening component, and the second tensioning connecting sleeve is arranged at the other end, far away from the belt pulley supporting seat, of the first tensioning connecting sleeve and is connected with the first tensioning connecting sleeve through a second fastening component; the second belt pulley is connected with the first belt pulley belt and can rotate under the drive of an external motor so as to drive the first belt pulley to rotate. This structure enables driving of the outer shaft member and is easy to repair. The utility model further provides a numerical control lathe.
Description
Technical Field
The utility model relates to the field of machine tool machining and manufacturing, in particular to a belt pulley assembly device and a numerical control lathe.
Background
In production, when a simple numerical control lathe processes a workpiece, the spindle box transmits power through an internal gear, the service life is prolonged at any time, and the spindle box is mechanically aged, so that the internal mechanism is possibly worn, for example, the gear shifting fork is worn, the internal size is damaged, and the like.
Once this occurs, it is necessary to disassemble the belt, pulleys, disassemble the gearbox, replace the internal gears and bearings, to perform maintenance of the equipment, which usually takes hours and once every few months, which is time-consuming and labor-consuming. Therefore, there is a need for a device designed outside the machine tool for power transmission to the spindle, thereby achieving operation of the spindle and normal operation of the machine tool, while facilitating repair.
Disclosure of Invention
In view of the above, the utility model provides a belt pulley assembly device and a numerically controlled lathe, which at least solve the problems of time and labor waste in machine tool maintenance.
According to one embodiment of the present utility model, a pulley assembly device includes a pulley support; the first belt pulley is installed on the belt pulley supporting seat through a first belt pulley installation assembly, the first belt pulley is provided with a first belt pulley inner hole for an external shaft to penetrate, a first tensioning connecting sleeve and a second tensioning connecting sleeve are detachably installed in the first belt pulley inner hole, the first tensioning connecting sleeve is arranged at one end close to the belt pulley supporting seat and is connected with the first belt pulley through a first fastening assembly, and the second tensioning connecting sleeve is arranged at the other end, far away from the belt pulley supporting seat, of the first tensioning connecting sleeve and is connected with the first tensioning connecting sleeve through a second fastening assembly; the second belt pulley is connected with the first belt pulley belt and can rotate under the drive of an external motor so as to drive the first belt pulley to rotate.
Based on the embodiment, the first belt pulley is fixed on the belt pulley supporting seat, the first tensioning connecting sleeve and the second tensioning connecting sleeve are driven to rotate through the first belt pulley and the second belt pulley, and the first tensioning connecting sleeve and the second tensioning connecting sleeve rotate to drive the outer shaft to rotate, so that the driving function of the outer shaft is achieved. The structure is simple, the belt pulley support seat is not easy to damage, and the belt pulley support seat can be conveniently fixed at a position where driving is needed due to detachable connection.
Further, the first pulley mounting assembly includes a first bearing, a second bearing, and a spacer mounted between the first bearing and the second bearing, the first bearing, the second bearing, and the spacer being mounted in the first pulley bore. Thus, the first pulley can rotate on the outer periphery of the pulley support seat.
Further, a gland is further arranged, the periphery of the belt pulley supporting seat is sleeved with the gland, the gland is connected with the first belt pulley through a third fastening assembly, and a first gland synchronizing wheel is further arranged on the gland. Therefore, by arranging the gland and the first gland synchronous wheel, the first belt pulley can rotate along with the rotation of the first belt pulley, and the function expansion is convenient.
Further, an encoder and a second gland synchronizing wheel are further arranged, the second gland synchronizing wheel is synchronously connected with the first gland synchronizing wheel, and the encoder is connected with the second gland synchronizing wheel. By providing an encoder, the rotational speed of the first pulley and the external shaft driven by the first pulley can be fed back.
Further, the belt pulley assembly device is further provided with an encoder supporting seat, and the encoder is arranged on the encoder supporting seat. The encoder is firmly supported by the encoder supporting seat, and the structure is compact.
Further, the external motor is a three-phase asynchronous motor.
According to another aspect of the present utility model, there is also provided a numerically controlled lathe comprising a spindle passing through the first pulley inner bore of the pulley assembly device of the above structure. With this embodiment, the pulley assembly device can be used to drive the spindle of a digital lathe.
Further, the pulley support seat is detachably mounted on the headstock of the main shaft through a fourth fastening assembly. Therefore, the belt pulley assembly device is arranged outside the main shaft box, and is quite convenient when repair is needed.
Further, the device also comprises a main shaft tensioning shaft sleeve, wherein the main shaft tensioning shaft sleeve is arranged in a main shaft inner hole of the main shaft. Therefore, the main shaft is driven by the belt pulley assembly device to rotate more efficiently and more stably.
Therefore, according to the belt pulley assembly device disclosed by the utility model, the belt pulley is fixed on the belt pulley supporting seat through the belt pulley fixing assembly, the first tensioning connecting sleeve and the second tensioning connecting sleeve which are matched with each other are arranged in the belt pulley, and the external shaft piece penetrates through the inner hole of the belt pulley to be synchronously connected with the first tensioning connecting sleeve and the second tensioning connecting sleeve, so that the belt pulley can drive the first tensioning connecting sleeve and the second tensioning connecting sleeve to rotate under the driving rotation of an external motor, and further drive the external shaft piece to rotate, and the driving of the external shaft piece is realized. The structure can be arranged outside the main shaft box and used for driving the main shaft to rotate, so that the time and labor waste caused by equipment disassembly and the like when maintenance is carried out can be saved. In addition, the utility model also provides a numerical control lathe.
Drawings
The above and other features and advantages of the present utility model will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which:
FIG. 1 is a schematic exploded view of a pulley assembly device according to one embodiment of the utility model;
fig. 2 is a schematic view showing a structure in which a pulley assembly device according to another embodiment of the present utility model is mounted on a headstock.
Wherein, the reference numerals are as follows:
1 first tensioning connecting sleeve of first belt pulley 2 and second belt pulley 5
7 second tensioning connecting sleeve 11 first bearing 13 spacer bush
15 second bearing 20 gland 22 first gland synchronizing wheel 24 second gland synchronizing wheel
30 encoder 32 encoder supporting seat 100 belt pulley supporting seat
101 first pulley first connection hole 102 first pulley second connection hole
110 first tensioning connection sleeve first connection sleeve 120 first tensioning connection sleeve second connection hole
200 external motor 201 second tensioning connecting sleeve connecting hole 202 gland connecting hole
300 external shaft 301 main shaft tension sleeve 400 main shaft box
Detailed Description
The present utility model will be further described in detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent.
FIG. 1 is a schematic exploded view of a pulley assembly device according to one embodiment of the utility model; fig. 2 is a schematic view showing a structure in which a pulley assembly device according to another embodiment of the present utility model is mounted on a headstock.
As shown in fig. 1 and 2, the pulley assembly device includes a pulley support 100; a first pulley 1 and a second pulley 2, the first pulley 1 being mounted on the pulley support 100 by a first pulley mounting assembly, the first pulley 1 having a first pulley inner bore into which the external shaft 300 is threaded, a first tension connecting sleeve 5 and a second tension connecting sleeve 7 being detachably mounted in the first pulley inner bore, the first tension connecting sleeve 5 being disposed at one end close to the pulley support 100 and connected to the first pulley 1 by a first fastening assembly, the second tension connecting sleeve 7 being disposed at the other end of the first tension connecting sleeve 5 remote from the pulley support 100 and being configured to be fastened to the first tension connecting sleeve 5 by a second fastening assembly; the second pulley 2 is belt-connected to the first pulley 1 and is rotatable by the external motor 200 to rotate the first pulley 1.
Specifically, the pulley support 100 has a cylindrical structure made of metal, and has a support inner hole for the outer shaft 300 to pass through, and connecting holes for fixing with the outside are provided at the upper and lower ends thereof, respectively, and detachably fixed to the external device through the fourth fastening assembly. The fourth fastening component is, for example, a bolt and a nut. The end of the pulley support 100, which is inserted away from the outer shaft 300, is provided with a first pulley mounting assembly, so that the first pulley 1 is mounted on the pulley support 100 by the first pulley mounting assembly; the first pulley 1 also has a first pulley inner bore into which the outer shaft 300 is threaded after passing through the pulley support 100.
Preferably, the first pulley mounting assembly includes a first bearing 11, a second bearing 15, and a spacer 13, the spacer 13 being mounted between the first bearing 11 and the second bearing 15, the first bearing 11, the second bearing 15, and the spacer 13 being mounted in the first pulley bore. In this way, the first pulley 1 can rotate on the outer periphery of the pulley support 100.
The first tensioning connecting sleeve 5 and the second tensioning connecting sleeve 7 are sequentially arranged in the inner hole of the first belt pulley from the penetrating end of the outer shaft 300, the first tensioning connecting sleeve 5 and the second tensioning connecting sleeve 7 are respectively provided with tensioning connecting sleeve inner holes for the outer shaft 300 to penetrate through, the first tensioning connecting sleeve first connecting holes 110 are respectively formed in the upper end and the lower end of the first tensioning connecting sleeve 5, the first fastening assembly penetrates through the first tensioning connecting sleeve first connecting holes 110 and the first belt pulley first connecting holes 101 so that the first tensioning connecting sleeve 5 is connected with the first belt pulley 1, the first tensioning connecting sleeve 5 is further provided with a first tensioning connecting sleeve second connecting hole 120, the upper end and the lower end of the second tensioning connecting sleeve 7 are respectively provided with a second tensioning connecting sleeve connecting hole 201, the second fastening assembly penetrates through the first tensioning connecting sleeve second connecting holes 120 and the second tensioning connecting sleeve connecting holes 201 to fasten the first tensioning connecting sleeve 5 and the second tensioning connecting sleeve 7, and the outer shaft 300 penetrates into the connecting sleeves tightly inner holes, and the first tensioning connecting sleeve 5 and the second tensioning connecting sleeve 7 can rotate under the action of the first belt pulley 1. The first fastening assembly and the second fastening assembly are, for example, bolts or the like.
Preferably, a gland 20 is further provided, the gland 20 is sleeved on the periphery of the pulley support seat 100 and is connected with the first pulley 1 through a third fastening assembly, and a first gland synchronizing wheel 22 is further provided on the gland 20.
Specifically, the upper and lower ends of the first pulley 1 are further provided with a first pulley second connection hole 102, and the third fastening assembly is used to connect the gland 20 and the first pulley 1 through the gland connection hole 202 on the gland 20 and the first pulley second connection hole 102. The end of the gland 20 near the pulley support seat 100 is also provided with a first gland synchronizing wheel 22, and the first gland synchronizing wheel 22 can be integrally arranged on the gland 20 in a welding way, for example, or can be fixed on the gland 20 in a detachable connection way through a fastener; thus, by providing the gland 20 and the first gland synchronizing wheel 22, the first gland synchronizing wheel can be rotated along with the rotation of the first pulley 1, and the function expansion, such as adding the encoder 30 or other devices, is facilitated. Here, the third fastening means is, for example, a bolt or the like.
Preferably, an encoder 30 and a second gland synchronizing wheel 24 are further provided, the second gland synchronizing wheel 24 is synchronously connected with the first gland synchronizing wheel 22, and the encoder 30 is connected with the second gland synchronizing wheel 24.
Specifically, the second gland synchronizing wheel 24 and the first gland synchronizing wheel 22 may be synchronously connected by a belt, and the encoder 30 and the second gland synchronizing wheel 2 may be connected by a pin key, for example, although other connection manners are also possible, and the connection manner of the encoder and the synchronizing wheel is well known to those skilled in the art, and will not be repeated. By providing the encoder 30, the encoder 30 is connected to the second gland synchronizing wheel 24, the second gland synchronizing wheel 24 is connected to the first gland synchronizing wheel 22, the first gland synchronizing wheel 22 is connected to the gland 20, and the gland 20 rotates as the first pulley 1 rotates, so that the encoder 30 can feed back the rotational speed of the first pulley 1 and the external shaft 300 driven by the first pulley 1.
Preferably, the pulley assembly device is further provided with an encoder support 32, and the encoder 30 is mounted on the encoder support 32. Specifically, the encoder support 32 includes a pair of L-shaped brackets, one of which is fixed to an external device by a fastener, for example, to one side of a box body of a headstock, and the other of which is fixed to an upper end of the L-shaped bracket, and the encoder is fixed to the L-shaped bracket at the upper end by a bolt or the like. The encoder 30 is firmly supported by the encoder support base 32, and the structure is compact.
The first belt pulley 1 and the second belt pulley 2 are connected and synchronized through a belt, and the second belt pulley 2 is arranged below the first belt pulley 1, is connected with the external motor 200 and is driven by the external motor 200 to rotate, so that the first belt pulley 1 is driven to rotate. Preferably, the motor is a three-phase asynchronous motor.
According to another aspect of the present utility model there is also provided a numerically controlled lathe comprising a spindle passing through the first pulley bore of the pulley assembly device of the above embodiments. With this embodiment, the pulley assembly device can be used to drive the spindle of a digital lathe.
Based on the above embodiment, the pulley support 100 is detachably mounted on the head stock 400 of the main shaft by the fourth fastening assembly. Thus, the pulley assembly device is arranged outside the main spindle box 400, and is convenient when repair is needed. The fourth fastening component is, for example, a bolt and a nut.
Based on the above embodiment, the device further comprises a main shaft tensioning shaft sleeve 301, and the main shaft tensioning shaft sleeve 301 is installed in a main shaft inner hole of the main shaft. Therefore, the main shaft is driven by the belt pulley assembly device to rotate more efficiently and more stably.
It can be seen that the belt pulley assembly device and the numerical control lathe according to the embodiment of the utility model reduce the maintenance failure rate, the maintenance cost and the labor intensity; and the structure is simple and the maintenance is easy.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Nouns and pronouns for humans in this patent application are not limited to a particular gender.
Claims (9)
1. A pulley assembly device characterized by comprising a pulley support (100); the belt pulley comprises a first belt pulley (1) and a second belt pulley (2), wherein the first belt pulley (1) is installed on a belt pulley supporting seat (100) through a first belt pulley installation component, the first belt pulley (1) is provided with a first belt pulley inner hole for an external shaft (300) to penetrate, a first tensioning connecting sleeve (5) and a second tensioning connecting sleeve (7) are detachably installed in the first belt pulley inner hole, the first tensioning connecting sleeve (5) is arranged at one end close to the belt pulley supporting seat (100) and is connected with the first belt pulley (1) through a first fastening component, and the second tensioning connecting sleeve (7) is arranged at the other end, far away from the belt pulley supporting seat (100), of the first tensioning connecting sleeve (5) and is connected with the first tensioning connecting sleeve (5) through a second fastening component; the second belt pulley (2) is connected with the first belt pulley (1) through a belt, and can rotate under the drive of an external motor (200) to drive the first belt pulley (1) to rotate.
2. A pulley assembly according to claim 1, characterized in that the first pulley mounting assembly comprises a first bearing (11), a second bearing (15) and a spacer (13), the spacer (13) being mounted between the first bearing (11) and the second bearing (15), the first bearing (11), the second bearing (15) and the spacer (13) being mounted in the first pulley inner bore.
3. A pulley assembly device according to claim 2, characterized in that a gland (20) is further provided, the gland (20) is sleeved on the periphery of the pulley support seat (100) and is connected with the first pulley (1) through a third fastening assembly, and a first gland synchronizing wheel (22) is further provided on the gland (20).
4. A pulley assembly according to claim 3, characterized in that an encoder (30) and a second gland synchronizing wheel (24) are also provided, said second gland synchronizing wheel (24) being in synchronous connection with said first gland synchronizing wheel (22), said encoder (30) being connected with said second gland synchronizing wheel (24).
5. A pulley assembly according to claim 4, characterized in that an encoder support (32) is provided, the encoder (30) being mounted on the encoder support (32).
6. A pulley assembly according to claim 1, characterized in that the external motor (200) is a three-phase asynchronous motor.
7. A numerically controlled lathe comprising a spindle passing through said first pulley bore of the pulley assembly device of any one of claims 1 to 6.
8. A numerically controlled lathe according to claim 7, characterized in that the pulley support (100) is removably mounted on the headstock (400) of the spindle by means of a fourth fastening assembly.
9. The numerically controlled lathe of claim 8, further comprising a spindle tensioning sleeve (301), the spindle tensioning sleeve (301) being mounted in a spindle bore of the spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320933987.7U CN219945401U (en) | 2023-04-23 | 2023-04-23 | Belt pulley assembly device and numerical control lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320933987.7U CN219945401U (en) | 2023-04-23 | 2023-04-23 | Belt pulley assembly device and numerical control lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219945401U true CN219945401U (en) | 2023-11-03 |
Family
ID=88548785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320933987.7U Active CN219945401U (en) | 2023-04-23 | 2023-04-23 | Belt pulley assembly device and numerical control lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219945401U (en) |
-
2023
- 2023-04-23 CN CN202320933987.7U patent/CN219945401U/en active Active
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| GR01 | Patent grant |