CN218509402U

CN218509402U - Self-locking driving cylinder

Info

Publication number: CN218509402U
Application number: CN202222299396.7U
Authority: CN
Inventors: 刘兵; 张筱琳; 刘同磊; 崔永伟
Original assignee: Hebei Dafu Heavy Industry Co ltd
Current assignee: Hebei Dafu Heavy Industry Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2023-02-21
Anticipated expiration: 2032-08-30

Abstract

The utility model relates to the technical field of driving barrels, in particular to a self-locking driving barrel; the automatic unlocking can be realized, and the installation convenience of the driving cylinder and the sleeve is improved; the automatic locking device comprises a pressure plate driving body, a transition body, a lower barrel and a self-locking mechanism for locking the lower barrel and a sleeve, wherein a driving seat is fixedly arranged on the outer wall of the pressure plate driving body, a track which corresponds to the driving seat is arranged on the inner wall of the transition body, and the driving seat is slidably arranged in the track; self-locking mechanism includes the unlocking ware and circumference arranges the multiunit connecting pin on barrel down, transition body bottom and barrel upper portion fixed connection down, unlocking ware circumference is installed under on the barrel, the unlocking ware corresponds the setting with lower barrel, the top of unlocking ware stretches into to the track that corresponds in, the bottom of unlocking ware is articulated with the connecting pin.

Description

Self-locking driving cylinder

Technical Field

The utility model relates to a technical field of drive flower section of thick bamboo especially relates to a self-locking type drive flower section of thick bamboo.

Background

As is known, a drive chuck is a coupling device for a power head and a socket of a rotary drilling machine; the existing driving cylinder comprises a driving cylinder body and a plurality of groups of connecting pins arranged on the driving cylinder body; for example, publication (publication) No. CN211038533U discloses a connecting side driving cylinder; the device comprises a cylinder body and a top plate, wherein a cavity is arranged in the cylinder body, the top end of the cylinder body is fixedly welded with the bottom end of the top plate, an opening is formed in the bottom end of the cylinder body and communicated with the cavity, connecting pins are uniformly distributed in the circumferential direction on the outer wall of the cylinder body and fixedly welded with the outer wall of the cylinder body, and the inner side ends of the connecting pins penetrate through the wall of the cylinder body from the outer wall of the cylinder body and extend into the cavity; the four groups of rib plates are respectively arranged at corners of the connecting side, the four groups of rib plates are fixedly welded with the connecting side, and the bottom ends of the four groups of rib plates are fixedly welded with the top end of the top plate. When the existing driving cylinder is used, the driving cylinder is arranged at the power head of the rotary excavating machine, and after the sleeve and the driving cylinder are in socket joint connection, the sleeve and the driving cylinder are fixedly connected through a plurality of groups of connecting pins; the connection of the driving cylinder and the drill rod of the rotary drilling machine can be completed without a pipe swinging device, so that the workload of installation and disassembly is saved, and the cost is saved; in using discovery, drive cylinder and telescopic being connected often locks and unblock through the people, but now more and more extension sleeve (for example 4m section/5 m section) are applied to the construction, go up the unblock and just become a difficult problem, and the installation convenience is not good enough, and the drive cylinder is with the telescopic upward unblock inefficiency, has certain use limitation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a can realize going up the unblock automatically, improve the self-locking type drive cylinder of drive cylinder and sleeve installation convenience.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the automatic locking device comprises a pressure plate driving body, a transition body, a lower barrel and a self-locking mechanism for locking the lower barrel and a sleeve, wherein a driving seat is fixedly arranged on the outer wall of the pressure plate driving body, a track which corresponds to the driving seat is arranged on the inner wall of the transition body, and the driving seat is slidably arranged in the track;

the self-locking mechanism comprises an unlocking device and a plurality of groups of connecting pins which are circumferentially arranged on the lower barrel body, the bottom of the transition body is fixedly connected with the upper portion of the lower barrel body, the unlocking device is circumferentially arranged on the lower barrel body, the unlocking device and the lower barrel body are correspondingly arranged, the top of the unlocking device extends into a corresponding track, and the bottom of the unlocking device is hinged to the connecting pins.

Preferably, the unlocking device comprises a sleeve, a driving rod and an elastic component for resetting the driving rod to provide elasticity, the sleeve is fixedly installed on the lower barrel, the driving rod can be arranged in the sleeve in a vertically sliding mode, the top of the driving rod extends into the corresponding track, the bottom of the driving rod is hinged to the connecting pin, and the driving rod is connected with the sleeve through the elastic component.

Preferably, the elastic component is a spring.

Preferably, a pressing plate is arranged at the top of the driving rod and extends into the corresponding track.

Preferably, the bottom of the lower barrel body is provided with a U-shaped groove.

Preferably, the rail is annular, a U-shaped opening portion communicated with the rail is arranged on the rail, and the pressing plate can be arranged in the U-shaped opening portion in a vertically sliding mode.

(III) advantageous effects

Compared with the prior art, the utility model provides a self-locking type drive cylinder possesses following beneficial effect: this self-locking type drive cylinder, with pressure disk driving body and the quick-witted unit head fixed connection that digs soon, drive the pressure disk driving body reversal and push down through the quick-witted unit head that digs soon, make the drive seat get into to the track bottom, the drive seat pushes down the ware that unlocks, through the transmission back, the connecting pin action, the connecting pin is taken out from barrel down, insert outside sleeve pipe upper portion to barrel bottom down, when needing to lock, quick-witted unit head that digs soon drives the pressure disk driving body and shifts up and rotate, make the drive seat get into the upper portion horizontal part in the track, the drive seat breaks away from the contact with the ware that unlocks, make the connecting pin automatic lock, sleeve pipe and barrel equipment in an organic whole down, realize automatic unblock, the simple operation, avoid operating personnel to ascend a height the operation.

Drawings

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

FIG. 2 is a schematic sectional view of the unlocking device of the present invention;

fig. 3 is a schematic diagram of the locked state structure of the present invention;

fig. 4 is a schematic structural diagram of the unlocking state of the present invention;

in the drawings, the reference numbers: 1. a platen drive body; 2. a transition body; 3. a lower cylinder body; 4. an unlocking device; 5. a connecting pin; 6. a driving seat; 7. a track; 8. a sleeve; 9. a drive rod; 10. a spring; 11. pressing a plate; 12. a U-shaped groove; 13. a U-shaped opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a self-locking driving cylinder of the present invention includes a pressure plate driving body 1, a transition body 2, a lower cylinder 3, and a self-locking mechanism for locking the lower cylinder 3 and a sleeve 8, wherein a driving seat 6 is fixedly disposed on an outer wall of the pressure plate driving body 1, a rail 7 disposed on an inner wall of the transition body 2 and corresponding to the driving seat 6 is disposed on the inner wall of the transition body, and the driving seat 6 is slidably disposed in the rail 7;

the self-locking mechanism comprises an unlocking device 4 and a plurality of groups of connecting pins 5 which are circumferentially arranged on the lower barrel 3, the bottom of the transition body 2 is fixedly connected with the upper part of the lower barrel 3, the unlocking device 4 is circumferentially arranged on the lower barrel 3, the unlocking device 4 is arranged corresponding to the lower barrel 3, the top of the unlocking device 4 extends into a corresponding track 7, and the bottom of the unlocking device 4 is hinged with the connecting pins 5; further, the rail 7 is divided into a horizontal part and a vertical part, when the connecting pin 5 is locked, the driving seat 6 moves up and down from the vertical part of the rail 7 so as to drive the connecting pin 5 through the unlocking device 4, and the unlocking device 4 can be a transmission rod or other transmission components with transmission function so as to provide power for rotating and unlocking or locking the connecting pin 5; further, the bottom of the transition body 2 is fixedly connected with the upper part of the lower barrel 3 through welding or bolts.

Specifically, the unlocking device 4 comprises a sleeve 8, a driving rod 9 and an elastic component for providing elastic force for resetting the driving rod 9, the sleeve 8 is fixedly arranged on the lower cylinder body 3, the driving rod 9 can be arranged in the sleeve 8 in a vertically sliding manner, the top of the driving rod 9 extends into the corresponding track 7, the bottom of the driving rod 9 is hinged with the connecting pin 5, and the driving rod 9 is connected with the sleeve 8 through the elastic component; when the unlocking is carried out, the driving seat 6 slides into the bottom in the track 7, the pressing plate 11 is pressed by the driving seat 6, the driving rod 9 drives the connecting pin 5 to move through transmission of the driving rod 9, so that the connecting pin 5 is drawn out of a pin bush in the outer sleeve, when the locking is required, the driving seat 6 moves and slides along the track 7, the driving seat 6 is separated from contact with the pressing plate 11, the driving rod 9 resets under the action of the elastic component, the driving rod 9 drives the connecting pin 5 to reset, the connecting pin 5 is inserted into the pin bush in the outer sleeve, and the unlocking and locking actions of the unlocking device 4 are completed; the elastic component may adopt an elastic mechanism with an elastic reset function, such as a spring 10, a disc spring, a tension spring, etc., and the specific connection mode is based on the specific elastic component, which is not described in detail herein.

Specifically, the elastic component is a spring 10; the spring 10 is sleeved on the driving rod 9, one end of the spring 10 is in close contact with the inner bottom wall of the sleeve 8, and the other end of the spring 10 is fixedly connected with the outer wall of the driving rod 9.

Specifically, the top of the driving rod 9 is provided with a pressing plate 11, and the pressing plate 11 extends into the corresponding track 7; the contact area between the driving rod 9 and the driving seat 6 can be increased by the pressing plate 11, so that the unlocking or locking of the connecting pin 5 can be realized by driving the unlocking device 4 more smoothly by the driving seat 6.

Specifically, the bottom of the lower barrel 3 is provided with a U-shaped groove 12; through the arrangement of the U-shaped groove 12, the sleeve keys on the external sleeve can be clamped and connected, the relative movement between the sleeve and the lower barrel 3 in the rotating process is avoided, and the stability of the connection between the lower barrel 3 and the sleeve is ensured.

Specifically, the rail 7 is annular, a U-shaped opening 13 communicated with the rail 7 is arranged on the rail 7, and the pressing plate 11 is arranged in the U-shaped opening 13 in a vertically sliding manner; the U-shaped opening part 13 can limit the moving track of the pressing plate 11, so that the pressing plate 11 is in a state of moving up and down, the pressing plate 11 is prevented from being separated from the vertical part of the track 7, and the unlocking device 4 is driven by the driving seat 6 more accurately.

When the locking device is used, the pressure plate driving body 1 is fixedly connected with the rotary excavator power head, the rotary excavator power head drives the pressure plate driving body 1 to rotate reversely and press downwards, the driving seat 6 enters the bottom of the track 7, the unlocking device 4 is pressed downwards by the driving seat 6, after transmission, the connecting pin 5 acts, the connecting pin 5 is pulled out of the lower barrel 3, the upper part of an external sleeve is inserted into the bottom of the lower barrel 3, when locking is needed, the rotary excavator power head drives the pressure plate driving body 1 to move upwards and rotate forwards, the driving seat 6 enters the horizontal part at the upper part in the track 7, the driving seat 6 is separated from contact with the unlocking device 4, the connecting pin 5 is automatically locked, the sleeve and the lower barrel 3 are assembled into a whole, and automatic unlocking is realized; through the arrangement of the U-shaped groove 12, the sleeve keys on the external sleeve can be clamped and connected, the relative movement between the sleeve and the lower barrel 3 in the rotating process is avoided, and the stability of the connection between the lower barrel 3 and the sleeve is ensured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A self-locking type driving cylinder is characterized by comprising a pressure plate driving body (1), a transition body (2), a lower cylinder body (3) and a self-locking mechanism for locking the lower cylinder body (3) and a sleeve (8), wherein a driving seat (6) is fixedly arranged on the outer wall of the pressure plate driving body (1), a track (7) which is arranged corresponding to the driving seat (6) is arranged on the inner wall of the transition body (2), and the driving seat (6) is arranged in the track (7) in a sliding manner;

self-locking mechanism includes unlocking ware (4) and circumference arranges multiunit connecting pin (5) on barrel (3) down, transition body (2) bottom and barrel (3) upper portion fixed connection down, unlocking ware (4) circumference is installed under on barrel (3), unlocking ware (4) correspond the setting with barrel (3) down, the top of unlocking ware (4) is stretched into in track (7) to corresponding, the bottom and the connecting pin (5) of unlocking ware (4) are articulated.

2. The self-locking driving cylinder according to claim 1, wherein the unlocking device (4) comprises a sleeve (8), a driving rod (9) and an elastic component for providing elastic force for resetting the driving rod (9), the sleeve (8) is fixedly arranged on the lower cylinder body (3), the driving rod (9) is arranged in the sleeve (8) in a vertically sliding manner, the top of the driving rod (9) extends into the corresponding track (7), the bottom of the driving rod (9) is hinged to the connecting pin (5), and the driving rod (9) is connected with the sleeve (8) through the elastic component.

3. A self-locking drive barrel according to claim 2, wherein said resilient member is a spring (10).

4. A self-locking driving cylinder according to claim 3, characterized in that the top of the driving rod (9) is provided with a pressure plate (11), said pressure plate (11) extending into the corresponding track (7).

5. A self-locking driving cylinder as claimed in claim 4, characterized in that the bottom of the lower cylinder (3) is provided with a U-shaped groove (12).

6. A self-locking driving cylinder as claimed in claim 5, wherein the rail (7) is annular, a U-shaped opening (13) communicating with the rail (7) is formed in the rail (7), and the pressing plate (11) is slidably disposed in the U-shaped opening (13).