CN210397621U

CN210397621U - Servo linear driving device

Info

Publication number: CN210397621U
Application number: CN201921327201.7U
Authority: CN
Inventors: 彭涛; 崔文立
Original assignee: Quanzhou Jiesite Instrument Equipment Co ltd
Current assignee: Quanzhou Jiesite Instrument Equipment Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-04-24
Anticipated expiration: 2029-08-15

Abstract

The utility model relates to a servo linear driving device, in particular to a servo linear driving device, which structurally comprises a driving rod main body and a driving device for providing power, wherein the driving rod main body is fixedly connected with a connecting frame, the front end of the driving rod main body is connected with a connecting rod, the driving rod main body comprises a screw rod connected with the output end of the driving device, the screw rod is in threaded connection with a sliding block arranged on the upper part of the screw rod, the sliding block is in sliding connection with a shell arranged outside the sliding block, the problems of larger volume, complex structure, poor dustproof effect and difficult maintenance in the prior art are solved, the shell not only plays a role of supporting the sliding block, but also can effectively prevent dust from entering the interior of equipment, effectively improves the maintenance efficiency of the equipment, reduces the maintenance cost, and can directly radiate the heat generated in the working process by the shell, the working time of the equipment is increased, the working efficiency is improved, and the device is simple in appearance and easy to maintain.

Description

Servo linear driving device

Technical Field

The utility model relates to a drive arrangement field especially relates to a servo linear drive device.

Background

The electric cylinder is a modularized product which integrates a servo motor and a lead screw, converts the rotary motion of the servo motor into linear motion, and simultaneously converts the best advantages of the servo motor, namely accurate rotating speed control, accurate revolution control and accurate torque control into accurate speed control, accurate position control and accurate thrust control; a completely new revolutionary product for realizing a high-precision linear motion series, which is currently disclosed in the chinese patent No.: CN96116724.6 discloses a rodless power cylinder mechanism with a cylinder sleeve. An outer slide plate is disposed on the cylinder liner and is movable in an axial direction of the cylinder liner. A base is provided with a guide rail. The sliding table is driven by an external sliding plate of the rodless power cylinder mechanism and is guided by the guide rail. According to the utility model, outside slide is located one side that faces the guide rail on the cylinder liner. This arrangement allows the outer slide and the ramp to fit within the height of the cylinder liner. The height of the linear drive can thus be reduced to be substantially equal to the height of the cylinder liner as a whole. But still have the structure that prior art application in-process often adopted the screw rod to add the guide arm among the in-service use, the structure of equipment is complicated, and the volume is great, if needs dustproof still need additionally increase the volume of dirt proof boot or shell simultaneously, and the structure is complicated, and dustproof effect is relatively poor, the problem of difficult maintenance.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides a servo linear drive device, it has solved the structure that often adopts the screw rod to add the guide arm among the prior art application, and the structure of equipment is complicated, and the volume is bigger, still needs additionally to increase the volume of dirt proof boot or shell if need be dustproof simultaneously, and the structure is complicated, and dustproof effect is relatively poor, is difficult to the technical problem of maintaining.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a servo linear driving device, its structure includes the actuating lever main part for provide the drive arrangement of power, actuating lever main part and link fixed connection, the front end and the connecting rod of actuating lever main part are connected, the actuating lever main part includes the screw rod of being connected with drive arrangement's output, the screw rod passes through threaded connection with the sliding block of locating its upper portion, the sliding block with locate its outside shell sliding connection, the opposite side and the output pole fixed connection of sliding block, the output pole is hollow structure, the screw rod passes the inside that partly is located the output pole of sliding block, the cross-section of shell is hollow rectangle structure, be equipped with the wear-resisting cover with the laminating of sliding block surface between sliding block and the shell, the sliding block only reciprocates along the direction of shell.

Further, the outer surface of the wear-resisting sleeve is connected with the shell in a sliding mode.

Furthermore, the driving device comprises a driving motor and a speed reducer matched with the driving motor for use, the speed reducer is fixedly connected with the shell through a bolt, and an output shaft of the speed reducer is fixedly connected with the screw rod through a detachable output connecting rod.

Furthermore, an external connecting frame used for being connected with other equipment is arranged outside the shell and fixedly connected with the shell through bolts.

Furthermore, the front end of the output rod is connected with the support plate through a detachable bidirectional connector.

Furthermore, the front end of the connecting rod is connected with the supporting plate, the supporting plate comprises a metal supporting plate and a rubber supporting plate, the metal supporting plate and the rubber supporting plate are fixedly connected through glue or bolts, and the metal supporting plate is fixedly connected with the connecting rod through welding.

By adopting the technical scheme, the beneficial effects of the utility model are that: the linear driving device improves the structure that a screw rod and a guide rod are commonly adopted in the application process of the prior art by arranging a structure that a sliding block is directly matched with a shell, the structure of the device is complex and has larger volume, and simultaneously, if dust is needed, the volume of a dust-proof sleeve or the shell is additionally increased, the structure is complex, the dust-proof effect is poor, and the maintenance is difficult, the structure that the sliding block is directly matched with the shell is driven by the screw rod, in the process that the sliding block is driven by the screw rod to move left and right, the sliding block is contacted with the shell through a wear-resistant sleeve, the sliding block is prevented from rotating along with the screw rod, so that the sliding block moves left and right along the direction of the screw rod under the action of the screw rod, the shell not only plays the role of supporting the sliding block, but also can effectively prevent, only lubricating oil needs to be supplemented during normal maintenance, so that the maintenance efficiency of the equipment is effectively improved, and the maintenance cost is reduced; furthermore, the wear-resistant sleeve is directly matched with the shell, heat generated in the working process can be directly radiated by the shell, the heat radiation efficiency is improved, the working time occupation ratio of the equipment is improved, the working efficiency is improved, and meanwhile, the integral degree of the whole equipment is high, the appearance is simple, and the maintenance is easy; furthermore, the bidirectional connector is arranged, so that different equipment can be connected, and different functions can be achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic front structural view of the present invention;

fig. 3 is a schematic view of the internal structure of the present invention.

Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Example one

Referring to fig. 1 to 3, the present embodiment provides a servo linear driving device, which structurally includes a driving rod main body 1, where the driving rod main body 1 includes a screw 12 connected to an output end of a driving device 2, the screw 12 is disposed at a middle position inside the driving rod main body 1, only 1 screw 12 is disposed, the screw 12 is in threaded connection with a sliding block 13 disposed on an upper portion thereof, the sliding block 13 is in sliding connection with an outer shell 11 disposed on an outer portion thereof, a cross section of the outer shell 11 is a hollow rectangular structure, a wear-resistant sleeve 14 attached to an outer surface of the sliding block 13 is disposed between the sliding block 13 and the outer shell 11, the wear-resistant sleeve 14 is made of a high-strength copper alloy, a shape of the wear-resistant sleeve is attached to a cavity between the sliding block 13 and the outer shell 11, a cross section of the sliding block 13 and a cross section of the outer shell 11 are rectangular frame structures, adopt the cross-section to be square structure in this embodiment, when sliding block 13 produced the pivoted trend, 4 edges of wear-resisting cover 14 all laminated with the internal surface of shell 11, sliding block 13 is under shell 11 and wear-resisting cover 14's effect, sliding block 13 only reciprocates along shell 11's direction, can not rotate, sliding block 13's opposite side and output rod 15 fixed connection, output rod 15 is hollow structure, output rod 15's internal diameter is greater than the external diameter of screw rod 12, output rod 15 is through a position sleeve 16 and shell 11 sliding connection, screw rod 12 passes the inside that partly is located output rod 15 of sliding block 13.

The screw rod driving device is characterized by further comprising a driving device 2 used for providing power, wherein the driving device 2 comprises a driving motor 24 and a speed reducer 21 matched with the driving motor 24 for use, the speed reducer 21 is fixedly connected with the shell 11 through a bolt, and an output shaft 22 of the speed reducer is fixedly connected with the screw rod 12 through a detachable output connecting rod 23.

The driving rod main body 1 is fixedly connected with the connecting frame 3, the external connecting frame 3 used for being connected with other equipment is arranged outside the shell 11, and the external connecting frame 3 is fixedly connected with the shell 11 through a bolt 31.

The front end of actuating lever main part 1 is connected with two-way connector 4, the front end of output lever 15 is connected with two-way connector 4 and backup pad 5 through detachable connection, backup pad 5 includes metal support plate 51 and rubber support plate 52 two parts, through glue or bolt fixed connection between metal support plate 51 and the rubber support plate 52, metal support plate 51 is through welding and connecting pipe 53 fixed connection, connecting pipe 53 is fixed with two-way connector 4 through connecting pipe fixing bolt 54.

Example two

Referring to fig. 1 to 4, the present embodiment provides a linear driving apparatus based on the same inventive concept, which is different from embodiment 1 in that:

the number of the screws 12 can be 2 or more, and one end of each screw is connected with the output end of the driving device 2 through a gear or a gear set 25, so that the effect of controlling the screw load is achieved, different screw numbers can be adopted according to different loads, as shown in fig. 4, two additional screws 121 are arranged on the left side and the right side of the screw 12, the lower parts of the additional screws 121 are connected with the shell through bearings, the gear set 25 and the output end of the driving device 2 are in a gear ratio of 1:1, and the rotating speed of the additional screws 121 is guaranteed to be the same as that of the screw 12.

The outer shell 11, the sliding block 13 and the wear-resistant sleeve 14 may also be of other structures with hexagonal or octagonal cross sections, and when the structure with more than 4 surfaces is adopted, the load of the outer shell 11 and the wear-resistant sleeve 14 may be reduced, or a sliding rail structure with grooves may also be adopted.

The rear end of the bidirectional connector 4 can also be connected with other equipment such as a pressure detector or a torsion detector, and the functions and purposes of the equipment can be expanded.

The connecting pipe 53 can also be connected with the bidirectional connector 4 in various ways such as a buckle.

The linear driving device improves the structure that a screw rod and a guide rod are commonly adopted in the application process of the prior art by arranging a structure that a sliding block is directly matched with a shell, the structure of the device is complex and has larger volume, and simultaneously, if dust is needed, the volume of a dust-proof sleeve or the shell is additionally increased, the structure is complex, the dust-proof effect is poor, and the maintenance is difficult, the structure that the sliding block is directly matched with the shell is driven by the screw rod, in the process that the sliding block is driven by the screw rod to move left and right, the sliding block is contacted with the shell through a wear-resistant sleeve, the sliding block is prevented from rotating along with the screw rod, so that the sliding block moves left and right along the direction of the screw rod under the action of the screw rod, the shell not only plays the role of supporting the sliding block, but also can effectively prevent, only lubricating oil needs to be supplemented during normal maintenance, so that the maintenance efficiency of the equipment is effectively improved, and the maintenance cost is reduced; furthermore, the wear-resistant sleeve is directly matched with the shell, heat generated in the working process can be directly radiated by the shell, the heat radiation efficiency is improved, the working time occupation ratio of the equipment is improved, the working efficiency is improved, and meanwhile, the integral degree of the whole equipment is high, the appearance is simple, and the maintenance is easy; furthermore, the bidirectional connector is arranged, so that different equipment can be connected, and different functions can be achieved.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A servo linear drive apparatus, characterized in that: its structure includes the actuating lever main part for provide the drive arrangement of power, actuating lever main part and link fixed connection, the front end and the connecting rod of actuating lever main part are connected, the actuating lever main part includes the screw rod of being connected with drive arrangement's output, the screw rod passes through threaded connection with the sliding block of locating its upper portion, the sliding block with locate its outside shell sliding connection, the opposite side and the output pole fixed connection of sliding block, the output pole is hollow structure, the screw rod passes the inside that partly is located the output pole of sliding block, the cross-section of shell is hollow rectangle structure, be equipped with the wear-resisting cover with the laminating of sliding block surface between sliding block and the shell, the sliding block only reciprocates along the direction of shell.

2. A servo linear drive apparatus according to claim 1, wherein: the outer surface of the wear-resistant sleeve is connected with the shell in a sliding mode.

3. A servo linear drive apparatus according to claim 1 or 2, wherein: the output rod is connected with the shell in a sliding mode through a positioning sleeve.

4. A servo linear drive apparatus according to claim 1, wherein: the driving device comprises a driving motor and a speed reducer matched with the driving motor for use, the speed reducer is fixedly connected with the shell through a bolt, and an output shaft of the speed reducer is fixedly connected with the screw rod through a detachable output connecting rod.

5. A servo linear drive apparatus according to claim 1, wherein: the external connection frame is used for being connected with other equipment and is arranged outside the shell, and the external connection frame is fixedly connected with the shell through bolts.

6. A servo linear drive apparatus according to claim 1, wherein: the front end of the output rod is connected with the supporting plate through a detachable bidirectional connector.

7. A servo linear drive apparatus according to claim 6, wherein: the front end and the backup pad of connecting rod are connected, the backup pad includes metal backup pad and rubber support board two parts, through glue or bolt fixed connection between metal backup pad and the rubber support board, the metal backup pad passes through welding and connecting rod fixed connection.