CN212055562U

CN212055562U - Tight device in top

Info

Publication number: CN212055562U
Application number: CN202020082558.XU
Authority: CN
Inventors: 林铭兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-12-01
Anticipated expiration: 2030-01-15

Abstract

The utility model provides a top tight device, including body and top tight piece, be equipped with on the body and run through the mounting hole of body, this internal edge that is equipped with the piston chamber that the mounting hole axial extension set up, the one end slidable mounting of top tight piece is in the piston intracavity, and the other end of top tight piece stretches out outside the piston chamber, top tight piece is in follow in the piston intracavity the axial direction of mounting hole removes. The utility model discloses simple structure, convenient to use, the mounting hole that sets up on the body makes its can the suit the part on the tight shaft member in axle, for example the suit on the stonecutter main shaft, the quick locking of saw bit is realized to the tight saw bit in top, and the mechanism that ends that sets up on the body can control the flow of hydraulic oil as required to adjust the displacement of piston, thereby the extension of the tight portion in control top guarantees the nimble regulation of the tight dynamics in top.

Description

Tight device in top

Technical Field

The utility model relates to a mechanical equipment technical field, concretely relates to tight device in top.

Background

The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and does linear reciprocating motion (or swinging motion), although the hydraulic cylinder is adopted as a jacking device in the market, the hydraulic cylinders cannot be installed on a shaft piece, other parts on the shaft piece are jacked, the parts on the shaft piece are basically locked by nuts at present, the nut locking installation is long, the quick locking cannot be realized, and the use is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at above weak point, provide an mountable on the axle piece, to the tight device in top in quick top of other parts on the axle piece.

The utility model provides a scheme that technical problem adopted is: the utility model provides a top tight device, includes body and top tight piece, be equipped with on the body and run through the mounting hole of body, this internal edge that is equipped with the piston chamber that the mounting hole axial extension set up, the one end slidable mounting of top tight piece is in the piston chamber, and the other end of top tight piece stretches out outside the piston chamber, top tight piece is in the piston chamber is followed the axial direction of mounting hole removes.

Further, in order to form a structure moving in the piston cavity and a structure for jacking other parts on the shaft; the jacking piece comprises a piston and a jacking part, the piston is slidably arranged in the piston cavity and is in sealing connection with the inner wall of the piston cavity.

Further, in order to ensure that the jacking part jacks stably, force is uniformly applied to other parts on the shaft; the tight portion in top is the loop configuration, and the tight portion in top sets up with the body is concentric, and the internal diameter in tight portion in top is the same with the internal diameter of body, and the external diameter in tight portion in top is the same with the external diameter of body.

Furthermore, in order to ensure that the piston cavity is adaptive to the shape of the piston, the whole tightening piece is driven to move by the movement of the piston in the piston cavity; the piston cavity is an annular groove with an opening at one side, and the piston is of an annular structure matched with the annular groove in shape.

Furthermore, in order to ensure that the piston is in sealing contact with the piston cavity, the piston is effectively pushed to move by the inlet and outlet of hydraulic oil; a first sealing ring is arranged between the inner wall of the piston and the side wall of the piston cavity, and a second sealing ring is arranged between the outer wall of the piston and the side wall of the piston cavity.

Furthermore, in order to control the jacking force of the jacking part on other components by inputting and outputting hydraulic oil into and out of the piston cavity and controlling the input and output of the hydraulic oil; the oil passage type piston is characterized in that an oil inlet and outlet hole is formed in the body, an oil passage used for communicating the oil inlet and outlet hole to the piston cavity is formed in the body, and a stop mechanism used for controlling the on-off of the oil passage is further arranged in the body.

Furthermore, in order to form an oil duct for communicating the oil inlet and outlet hole and the oil cavity, the processing difficulty of the oil duct is reduced; the oil passages comprise a first oil passage, a second oil passage and a third oil passage which are sequentially communicated, the other end of the first oil passage is communicated with the oil inlet and outlet hole, the other end of the third oil passage is communicated with the piston cavity, the second oil passage is radially arranged along the mounting hole, the first oil passage and the second oil passage are vertical to each other on the horizontal plane, the third oil passage and the second oil passage are vertical to each other on the vertical plane, a process hole for machining the first oil passage is formed in the body, and the process hole is formed by extending the first oil passage axially outwards.

Furthermore, the on-off of the first oil duct and the second oil duct is controlled, so that the on-off of the oil ducts is controlled, and meanwhile, the processing difficulty of the oil ducts and the stop holes is reduced; the stopping mechanism comprises a plug, a stopping hole which is formed by extending the second oil duct axially outwards is formed in the body, and the plug is arranged in the stopping hole to control the connection and disconnection of the first oil duct and the second oil duct.

Furthermore, in order to control the movement of the plug, the on-off of the first oil duct and the second oil duct is further controlled; the plug comprises a conical sealing part and a driving rod, the conical sealing part is used for plugging the first oil duct and the second oil duct, an internal thread is arranged on the inner wall of the cut-off hole, and an external thread which is in threaded fit with the internal thread to drive the conical sealing part to axially move in the cut-off hole is arranged on the driving rod.

Furthermore, in order to introduce hydraulic oil, the pipeline joint can be disassembled; the oil inlet and outlet hole is provided with a pipeline joint, the pipeline joint comprises a fixed joint and a movable joint, the fixed joint is fixedly arranged on the oil inlet and outlet hole, the axial length of the fixed joint is smaller than the axial depth of the oil inlet and outlet hole, and the movable joint is detachably connected with the fixed joint through a nut cover.

Compare prior art, the utility model has the advantages of it is following: the utility model discloses simple structure, high durability and convenient use, the mounting hole that sets up on the body, make its part that can the suit on the tight axle piece in axle, for example the suit is on the stonecutter main shaft, the quick locking of saw bit is realized to the tight saw bit in top, during the use, connect through the pipeline, pour into hydraulic oil into to the piston intracavity, the drive piston outwards removes, it stretches out to drive the ejector pin, the tight outside part in top, the annular slot who sets up in the tight portion in top, multiplicable and outside part's frictional force, so that the tight device in top is rotatory together followed outside part when the axle is rotatory, keep the locking force to outside part, the mechanism that ends that sets up on the body, can control the flow of hydraulic oil as required, with the displacement of adjusting piston, thereby the extension of the tight portion in control top, guarantee the nimble regulation of the tight dynamics in.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic half-sectional view of the present invention;

fig. 3 is a schematic diagram of the structure of the oil passage.

In the figure: 1-body; 10-mounting holes; 11-a piston cavity; 12-oil inlet and outlet holes; 13-a first oil gallery; 14-a second oil passage; 15-a third oil passage; 16-a fabrication hole; 17-a cut-off hole; 2-a top tightening piece; 20-a piston; 21-a tightening part; 210-an annular trench; 3-plug; 30-a conical seal; 31-a drive rod; 4-a pipe joint; 40-fixed joints; 41-a movable joint; 42-nut cap.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples:

as shown in fig. 1-3, the present embodiment provides a tightening device, which includes a body 1 and a tightening member 2, wherein a mounting hole 10 is formed in the body 1, a piston cavity 11 is formed in the body 1 and extends axially along the mounting hole 10, one end of the tightening member 2 is slidably mounted in the piston cavity 11, the other end of the tightening member 2 extends out of the piston cavity 11, and the tightening member 2 moves in the piston cavity 11 along the axial direction of the mounting hole 10.

In the present embodiment, in order to form a structure for moving in the piston chamber 11 and a structure for tightening other parts on the shaft member; the top tightening piece 2 comprises a piston 20 and a top tightening part 21, the top tightening part 21 is arranged outside the piston cavity 11, the piston 20 is arranged in the piston cavity 11 in a sliding mode, and the piston 20 is connected with the inner wall of the piston cavity 11 in a sealing mode; the piston cavity 11, the piston 20 and the tightening member 2 can be provided in a plurality, the plurality of piston cavities 11 are uniformly arranged around the periphery of the mounting hole 10, the piston 20 is arranged in the piston cavity 11 and extends out of the piston cavity 11 to be connected with the tightening part 21, and the tightening part 21 is driven to tighten an external part by the movement of the piston 20.

In the embodiment, in order to ensure that the tightening part 21 is stably tightened, other parts on the shaft member are uniformly applied with force; the body 1 is cylindrical, the tightening part 21 is of an annular structure, the tightening part 21 and the body 1 are concentrically arranged, the inner diameter of the tightening part 21 is the same as that of the body 1, the outer diameter of the tightening part 21 is the same as that of the body 1, and an annular groove 210 is formed in the end face of the tightening part 21, which faces away from the piston 20, so that friction force is formed and locking force is increased; here, the piston cavity 11 and the piston 20 may be provided in plural, the plural piston cavities 11 are uniformly arranged around the periphery of the mounting hole 10, the piston 20 is arranged in the piston cavity 11 and extends out of the piston cavity 11 to be connected with the tightening part 21, and the tightening part 21 is driven by the movement of the piston 20 to move and tighten the external part.

In the present embodiment, in order to ensure that the piston chamber 11 is adapted to the shape of the piston 20, the entire top member 2 is moved by the movement of the piston 20 in the piston chamber 11; the piston cavity 11 is an annular groove with an opening at one side, and the piston 20 is an annular structure matched with the annular groove in shape.

In the embodiment, in order to ensure that the piston 20 is in sealing contact with the piston cavity 11, the piston 20 is effectively pushed to move by the inlet and outlet of the hydraulic oil; a first sealing ring is arranged between the inner wall of the piston 20 and the side wall of the piston cavity 11, and a second sealing ring is arranged between the outer wall of the piston 20 and the side wall of the piston cavity 11.

In the present embodiment, in order to control the tightening force of the tightening portion 21 against other components by inputting and outputting hydraulic oil into and from the piston chamber 11 and controlling the input and output of the hydraulic oil; the oil-gas cylinder is characterized in that the body 1 is provided with an oil inlet and outlet hole 12, an oil passage for communicating the oil inlet and outlet hole 12 to the piston cavity 11 is arranged in the body 1, and the body 1 is also internally provided with a stop mechanism for controlling the on-off of the oil passage.

In the embodiment, in order to form an oil passage for communicating the oil inlet and outlet hole 12 and the oil chamber, the processing difficulty of the oil passage is reduced; the oil passages comprise a first oil passage 13, a second oil passage 14 and a third oil passage 15 which are sequentially communicated, the other end of the first oil passage 13 is communicated with the oil inlet and outlet hole 12, the other end of the third oil passage 15 is communicated with the cavity bottom of the piston cavity 11, the second oil passage 14 is radially arranged along the mounting hole 10, the first oil passage 13 and the second oil passage 14 are vertical to each other on a horizontal plane, the third oil passage 15 and the second oil passage 14 are vertical to each other on a vertical plane, a process hole 16 used for machining the first oil passage 13 is formed in the body, and the process hole 16 extends outwards from the axial direction of the first oil passage 13.

In the embodiment, in order to control the on-off of the first oil passage 13 and the second oil passage 14, and further control the on-off of the oil passages, the processing difficulty of the oil passages and the stop holes 17 is reduced; the stop mechanism comprises a plug 3, a stop hole 17 which extends outwards from the axial direction of the second oil duct 14 is formed in the body 1, and the plug 3 is arranged in the stop hole 17 to control the connection and disconnection of the first oil duct 13 and the second oil duct 14.

In the embodiment, in order to control the movement of the plug 3, the on-off of the first oil passage 13 and the second oil passage 14 is further controlled; the plug 3 comprises a conical sealing portion 30 for plugging the first oil passage 13 and the second oil passage 14, and a driving rod 31, wherein an inner thread is arranged on the inner wall of the cut-off hole 17, and an outer thread which is in threaded fit with the inner thread to drive the conical sealing portion 30 to axially move in the cut-off hole 17 is arranged on the driving rod 31.

In the embodiment, in order to introduce hydraulic oil, the pipeline joint 4 is detachable; the oil inlet and outlet hole 12 is provided with a pipeline joint 4, the pipeline joint 4 comprises a fixed joint 40 and a movable joint 41, the fixed joint 40 is fixedly installed on the oil inlet and outlet hole 12, the axial length of the fixed joint 40 is smaller than the axial depth of the oil inlet and outlet hole 12, and the movable joint 41 is detachably connected with the fixed joint 40 through a nut cover 42.

The utility model discloses simple structure, high durability and convenient use, the mounting hole 10 that sets up on the body 1, make its part that can the suit on the tight axle of axle top, for example the suit is on the stonecutter main shaft, the quick locking of saw bit is realized to the tight saw bit in top, during the use, through pipe joint 4, to injecting hydraulic oil in the piston chamber 11, drive piston 20 outwards removes, it outwards stretches out to drive the ejector pin, the tight outside part in top, the annular groove 210 that sets up on the tight portion in top 21, multiplicable and outside part's frictional force, so that the tight device in top when the axle is rotatory follows outside part and rotates together, keep the locking force to outside part, the mechanism that ends that sets up on the body 1, can control the flow of hydraulic oil as required, with the displacement of adjusting piston 20, thereby the amount that stretches out of the tight portion 21 in control top, guarantee the nimble regulation of the tight dynamics in top.

The above only is the embodiment of the present invention, not limiting the patent protection scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A jacking device is characterized in that: including body and top tight piece, be equipped with on the body and run through the mounting hole of body, this internal edge that is equipped with the piston chamber that the mounting hole axial extension set up, the one end slidable mounting of top tight piece is in the piston chamber, and the other end of top tight piece stretches out outside the piston chamber, top tight piece is in the piston intracavity edge the axial direction of mounting hole removes.

2. A jacking device as claimed in claim 1, wherein: the jacking piece comprises a piston and a jacking part, the piston is slidably arranged in the piston cavity and is in sealing connection with the inner wall of the piston cavity.

3. A jacking device as claimed in claim 2, wherein: the tight portion in top is the loop configuration, and the tight portion in top sets up with the body is concentric, and the internal diameter in tight portion in top is the same with the internal diameter of body, and the external diameter in tight portion in top is the same with the external diameter of body.

4. A jacking device as claimed in claim 3, wherein: the piston cavity is an annular groove with an opening at one side, and the piston is of an annular structure matched with the annular groove in shape.

5. A jacking device as claimed in claim 4, wherein: a first sealing ring is arranged between the inner wall of the piston and the side wall of the piston cavity, and a second sealing ring is arranged between the outer wall of the piston and the side wall of the piston cavity.

6. A jacking device as claimed in claim 1, wherein: the oil passage type piston is characterized in that an oil inlet and outlet hole is formed in the body, an oil passage used for communicating the oil inlet and outlet hole to the piston cavity is formed in the body, and a stop mechanism used for controlling the on-off of the oil passage is further arranged in the body.

7. A jacking device as claimed in claim 6, wherein: the oil passages comprise a first oil passage, a second oil passage and a third oil passage which are sequentially communicated, the other end of the first oil passage is communicated with the oil inlet and outlet hole, the other end of the third oil passage is communicated with the piston cavity, the second oil passage is radially arranged along the mounting hole, the first oil passage and the second oil passage are vertical to each other on the horizontal plane, the third oil passage and the second oil passage are vertical to each other on the vertical plane, a process hole for machining the first oil passage is formed in the body, and the process hole is formed by extending the first oil passage axially outwards.

8. A jacking device as claimed in claim 7, wherein: the stopping mechanism comprises a plug, a stopping hole which is formed by extending the second oil duct axially outwards is formed in the body, and the plug is arranged in the stopping hole to control the connection and disconnection of the first oil duct and the second oil duct.

9. A jacking device as claimed in claim 8, wherein: the plug comprises a conical sealing part and a driving rod, the conical sealing part is used for plugging the first oil duct and the second oil duct, an internal thread is arranged on the inner wall of the cut-off hole, and an external thread which is in threaded fit with the internal thread to drive the conical sealing part to axially move in the cut-off hole is arranged on the driving rod.

10. A jacking device as claimed in claim 6, wherein: the oil inlet and outlet hole is provided with a pipeline joint, the pipeline joint comprises a fixed joint and a movable joint, the fixed joint is fixedly arranged on the oil inlet and outlet hole, the axial length of the fixed joint is smaller than the axial depth of the oil inlet and outlet hole, and the movable joint is detachably connected with the fixed joint through a nut cover.