CN214741150U - Main winch over-discharge prevention device of rotary drilling rig - Google Patents
Main winch over-discharge prevention device of rotary drilling rig Download PDFInfo
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- CN214741150U CN214741150U CN202120715326.8U CN202120715326U CN214741150U CN 214741150 U CN214741150 U CN 214741150U CN 202120715326 U CN202120715326 U CN 202120715326U CN 214741150 U CN214741150 U CN 214741150U
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- pulley
- wire rope
- connecting rod
- steel wire
- elevator
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Abstract
The utility model provides a dig rig owner hoist soon and prevent overdischarging device, includes to dig the drilling rod soon, elevator, wire rope, preceding pulley, back pulley, electric poplars machine and frame, it is connected with the elevator to dig the drilling rod soon, the elevator is connected with wire rope's one end, preceding pulley and back pulley are the tilting installation, and preceding pulley is located high-order department, and back pulley is located low level department, the other end of elevator walks around the inslot back electric poplars machine of preceding pulley and back pulley in proper order and connects. The problems of over-discharge, rope disorder, knotting and the like of the steel wire rope caused by the fact that the winch continues to lower the drill rod after the drill rod contacts the ground are solved in time.
Description
Technical Field
The utility model belongs to the technical field of dig the rig soon, specifically speaking relates to a dig rig owner hoist soon and prevent overdischarging device.
Background
The rotary drilling rig in the current market adopts a mode that whether the steel wire rope is over-placed or not on the steel wire rope reel is unreliable, and the detection is insensitive, so that the over-placement and the disorder of the steel wire rope are easily caused, and the steel wire rope is damaged. The requirements of customers cannot be well met, and a new mechanism needs to be developed to meet the requirements of customers.
In view of this, the present invention is provided.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves lies in overcoming the not enough of prior art, provides a dig rig main hoist soon and prevent overdischarging device, for solving above-mentioned technical problem, the utility model discloses a technical scheme's basic design is:
a main winch over-discharge prevention device of a rotary drilling rig comprises a rotary drilling rod, an elevator, a steel wire rope, a front pulley, a rear pulley, an electric winch and a frame, wherein the rotary drilling rod is connected with the elevator, the elevator is connected with one end of the steel wire rope, the front pulley and the rear pulley are installed in an inclined mode, the front pulley is located at a high position, the rear pulley is located at a low position, the other end of the elevator sequentially bypasses the grooves of the front pulley and the rear pulley to be connected with the electric winch, a connecting rod is arranged on a steel wire rope path between the front pulley and the rear pulley in an inclined mode, the lower end of the connecting rod can be rotatably connected onto the frame, an adjusting screw rod in the vertical direction is fixedly connected to the middle of the connecting rod and movably penetrates through a fixed seat located below the connecting rod, a limiting nut is fixedly sleeved on the surface of the adjusting screw rod at a position located below the fixed seat, and an elastic piece is arranged between the limiting nut and the fixed seat, the upper end of elastic component is spacing by the fixing base, and the lower extreme is spacing by stop nut, the upper end of connecting rod is connected with spacing end structure, and the laminating in the wire rope surface of spacing end structure below, one side that adjusting screw is close to the front pulley is located the below of connecting rod and is provided with travel switch, travel switch passes through cable and electric connection of electric coiling machine.
The limiting end head structure is a roller connected to the upper end of the connecting rod, and a roller groove of the roller is attached to the surface of the steel wire rope in a rolling mode.
The elastic part is a compression spring, the compression spring is wrapped on the surface of the adjusting screw rod, and the upper end and the lower end of the compression spring are respectively attached to the lower surface of the fixing seat and the upper surface of the limiting nut.
After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has.
When the winch is used for lowering the rotary drilling rod to contact the ground, the steel wire rope is in a loose state, the limiting end head structure and the connecting rod move downwards under the action of the adjusting bolt and the elastic piece, and the connecting rod presses the travel switch to prevent the winch from rotating to lower the steel wire rope when the winch loses power and the hoisting electromagnetic valve is pressed. The winch can only lift up and perform the function of floating the winding drum, so that the problems of over-discharge, rope disorder, knotting and other faults and potential safety hazards of the steel wire rope caused by the fact that the winch continues to lower due to the fact that the drill rod contacts the ground are solved in time.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic view of the steel wire rope of the present invention in a stretched state;
FIG. 2 is a schematic view of the steel wire rope in a loose state
In the figure: 1, rotary drilling a drill rod; 2-an elevator; 3-a steel wire rope; 4-front pulley; 5-a roller; 6-connecting rod; 7-a rear pulley; 8-a cable; 9-a travel switch; 10-adjusting the screw; 11-a limit nut; 12-a fixed seat; 13-electric poplars rolling machine; 14-a frame.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
As shown in fig. 1 to 2, a main winch over-discharge prevention device of a rotary drilling rig comprises a rotary drilling rod 1, an elevator 2, a steel wire rope 3, a front pulley 4, a rear pulley 7, an electric winch 13 and a frame 14, wherein the rotary drilling rod 1 is connected with the elevator 2, the elevator 2 is connected with one end of the steel wire rope 3, the front pulley 4 and the rear pulley 7 are obliquely installed, the front pulley 4 is positioned at a high position, the rear pulley 7 is positioned at a low position, the other end of the elevator 2 sequentially bypasses the grooves of the front pulley 4 and the rear pulley 7 and is connected with the rear electric winch 13, a connecting rod 6 is obliquely arranged on a steel wire rope path between the front pulley 4 and the rear pulley 7, the lower end of the connecting rod 6 is rotatably connected to the frame 14, a vertical adjusting screw rod 10 is fixedly connected to the middle of the connecting rod 6, and the adjusting screw rod 10 movably penetrates through a fixed seat 12 which is positioned below the connecting rod 6 and fixed on the frame 14, the fixed cover in the below position that adjusting screw 10's surface was located fixing base 12 is equipped with stop nut 11, and be provided with the elastic component between stop nut 11 and the fixing base 12, the upper end of elastic component is spacing by fixing base 12, the lower extreme is spacing by stop nut 11, the upper end of connecting rod 6 is connected with spacing end structure, laminate in wire rope 3 surfaces in spacing end structure below, one side that adjusting screw 10 is close to preceding pulley 4 is located the below of connecting rod 6 and is provided with travel switch 9, travel switch 9 passes through cable 8 and electric poplarm 13 electric connection.
When the electric winch 13 needs to pay off, because the rotary drilling rod 1 does not touch the ground, under the gravity condition, the steel wire rope 3 is in a collapsing state, the working condition is as shown in the figure I, the steel wire rope 3 pulls the limiting end head structure 5 and the connecting rod 6 to move upwards, the elastic part contracts, the connecting rod 6 is separated from the travel switch 9, the hoisting electromagnetic valve of the electric winch is electrified, the electric winch normally rotates to lower the steel wire rope, and it needs to be explained here that the gravity is far greater than the elastic force of the elastic part, which is undoubted.
When the rotary drilling rod 1 is in contact with the ground during the descending of the winch, as shown in the figure II, the steel wire rope 3 is in a loose state, the limiting end head structure 5 and the connecting rod 6 move downwards under the action of the adjusting bolt 10 and the elastic piece, and the connecting rod presses the travel switch 9, so that the power-off winch of the winch electromagnetic valve cannot rotate to descend the steel wire rope. The winch 13 can only lift up and perform the function of floating the winding drum, so that the problems of over-discharge, rope disorder, knotting and the like of the steel wire rope and potential safety hazards caused by the fact that the winch continues to lower due to the fact that the drill rod contacts the ground are solved in time.
In this example, the limiting end head structure is a roller 5 connected to the upper end of the connecting rod 6, and a roller groove of the roller 5 is in rolling fit with the surface of the steel wire rope 3, so that the scheme is better, the abrasion can be reduced, other block-shaped structures can be realized, but the friction is larger, and the steel wire rope 3 is easy to damage.
In this embodiment, the elastic member is a compression spring, the compression spring is wrapped on the surface of the adjusting screw 10, and the upper and lower ends of the compression spring are respectively attached to and limited by the lower surface of the fixing seat 12 and the upper surface of the limiting nut 11, although other elastic members with restoring capability can be substituted.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.
Claims (3)
1. A main winch over-discharge prevention device of a rotary drilling rig comprises a rotary drilling rod (1), an elevator (2), a steel wire rope (3), a front pulley (4), a rear pulley (7), an electric winch (13) and a rack (14), wherein the rotary drilling rod (1) is connected with the elevator (2), the elevator (2) is connected with one end of the steel wire rope (3), the device is characterized in that the front pulley (4) and the rear pulley (7) are installed in an inclined mode, the front pulley (4) is located at a high position, the rear pulley (7) is located at a low position, the other end of the elevator (2) is sequentially connected with the electric winch (13) in the grooves of the front pulley (4) and the rear pulley (7) in a winding mode, a connecting rod (6) is obliquely arranged on a steel wire rope path between the front pulley (4) and the rear pulley (7), and the lower end of the connecting rod (6) is rotatably connected to the rack (14), the middle part of the connecting rod (6) is fixedly connected with an adjusting screw rod (10) in the vertical direction, and the adjusting screw rod (10) movably passes through a fixed seat (12) positioned below the connecting rod (6), a limiting nut (11) is fixedly sleeved on the surface of the adjusting screw rod (10) at a position below the fixed seat (12), an elastic piece is arranged between the limit nut (11) and the fixed seat (12), the upper end of the elastic piece is limited by the fixed seat (12), the lower end is limited by the limit nut (11), the upper end of the connecting rod (6) is connected with a limiting end head structure, the lower part of the limiting end head structure is attached to the surface of the steel wire rope (3), a travel switch (9) is arranged below the connecting rod (6) at one side of the adjusting screw (10) close to the front pulley (4), the travel switch (9) is electrically connected with the electric winding and unwinding machine (13) through a cable (8).
2. The main winch over-discharge prevention device of the rotary drilling rig according to claim 1, wherein the limiting end head structure is a roller (5) connected to the upper end of the connecting rod (6), and a wheel groove of the roller (5) is attached to the surface of the steel wire rope (3) in a rolling manner.
3. The main winch over-discharge prevention device of the rotary drilling rig according to claim 2, wherein the elastic part is a compression spring, the compression spring is wrapped on the surface of the adjusting screw rod (10), and the upper end and the lower end of the compression spring are respectively attached to the lower surface of the fixed seat (12) and the upper surface of the limiting nut (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120715326.8U CN214741150U (en) | 2021-04-08 | 2021-04-08 | Main winch over-discharge prevention device of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120715326.8U CN214741150U (en) | 2021-04-08 | 2021-04-08 | Main winch over-discharge prevention device of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214741150U true CN214741150U (en) | 2021-11-16 |
Family
ID=78601291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120715326.8U Active CN214741150U (en) | 2021-04-08 | 2021-04-08 | Main winch over-discharge prevention device of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214741150U (en) |
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2021
- 2021-04-08 CN CN202120715326.8U patent/CN214741150U/en active Active
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