CN221759235U - Cable retracting and releasing mechanism for tunnel drilling rig - Google Patents

Abstract

The utility model belongs to the field of cable winding and unwinding, and particularly relates to a random cable winding and unwinding mechanism of an underground drill; the paying-off can be realized according to the walking of drill carriage, and automatic cable is accomodate, has convenient to use, need not other people auxiliary effect. The technical proposal comprises: the device comprises a crawler chassis of a winding and unwinding device, a winding and unwinding drum reel mechanism support, a winding and unwinding drum, a cable reel mechanism, an explosion-proof slip ring, a first section of cable and a second section of cable. The bracket is hinged with the rear part of the drill carriage. The cable reel mechanism is arranged on the bracket. The winding and unwinding cylinder is arranged on the bracket, and is positioned on one side of the cable scroll mechanism, which is far away from the drill carriage, and the rotating speed of the winding and unwinding cylinder is positively related to the running speed of the crawler chassis. One end of the first section of cable is electrically connected with the power supply switch, and the other end of the first section of cable is connected with the cable reel mechanism after passing through the winding and unwinding cylinder, and the first section of cable has a trend of winding on the cable reel mechanism. One end of the second section of cable is electrically connected with the first section of cable through the explosion-proof slip ring, and the other end of the second section of cable is electrically connected with the drill carriage.

Description

Cable retracting and releasing mechanism for tunnel drilling rig

Technical Field

The utility model belongs to the field of cable retraction and release, and in particular relates to a random cable retraction and release mechanism of a tunnel drilling machine.

Background Art

Underground drilling rigs can be driven by electricity. When the drilling rig is running in the tunnel, the cable is often dragged and moved on the ground. When the drilling rig retreats, workers are required to carry the cable along with the drilling vehicle.

The above process causes inconvenience in the operation of the drilling vehicle, and there are defects such as cable damage, electric shock to personnel and open flames underground.

In the current technology, a cable retracting device can also be used to store or release the drilling vehicle cable, but the cable release is unstable, and the storage requires the assistance of workers and the auxiliary transportation of the cable retracting device, which makes the operation of the drilling vehicle inconvenient.

Utility Model Content

In order to overcome the defects in the above-mentioned related technologies, the utility model proposes a random cable retracting and releasing mechanism for a tunnel drilling rig, which can realize cable release according to the operation of the drilling vehicle and automatic cable storage, and is easy to use and does not require the assistance of others.

In order to achieve the above technical purpose, the utility model provides a cable retracting and releasing mechanism for a tunnel drilling rig. The cable retracting and releasing mechanism for the tunnel drilling rig is hinged to the rear of the drilling vehicle.

The cable retracting and releasing mechanism provided with the tunnel drilling rig includes: a bracket, a cable reel mechanism, a retracting and releasing drum, a first section of cable and a second section of cable. The bracket is hinged to the rear of the drilling vehicle. The cable reel mechanism is arranged on the bracket. The retracting and releasing drum is arranged on the bracket, and the retracting and releasing drum is located on the side of the cable reel mechanism away from the drilling vehicle, and the rotation speed of the retracting and releasing drum is positively correlated with the running speed of the crawler chassis. One end of the first section of cable is electrically connected to the power switch, and the other end is connected to the cable reel mechanism after passing through the retracting and releasing drum, and the first section of cable has a tendency to be wound around the cable reel mechanism. One end of the second section of cable is electrically connected to the first section of cable through an explosion-proof slip ring, and the other end of the second section of cable is electrically connected to the drilling vehicle.

Preferably, the bracket includes a vehicle body, the upper part of the vehicle body includes a fixed platform, the lower part of the vehicle body includes wheels, at least one wheel among the multiple wheels is connected to the synchronizer, and the synchronizer is configured to drive the retractable cylinder to rotate in proportion to the wheel speed.

Preferably, the cable reel mechanism comprises: a reel support, a reel and a central axis. The two reel supports are arranged opposite to each other, and the reel supports are fixed on the fixed platform. The reel is a roller structure, movably arranged between the two reel supports, and the reel has a tendency to rotate around its center line. The other end of the first section of cable is fixedly connected to the reel and extends to the inside of the reel. The central axis runs through the middle of the reel, and the two ends of the central axis are fixedly connected to the two reels one by one, and the central axis is connected to the support through a bearing;

Preferably, the cable reel mechanism further comprises a driving shaft, and the driving shaft and the retracting cylinder are driven by a chain. The cable reel mechanism further comprises a friction clutch, one end of which is fixedly connected to the driving shaft, and the other end of which is fixedly connected to the central shaft.

Preferably, the cable reel mechanism also includes an explosion-proof slip ring, which is fixed to one side of the reel, and the side of the explosion-proof slip ring facing the inside of the reel is electrically connected to the other end of the first cable segment, and the side of the explosion-proof slip ring facing the outside of the reel is electrically connected to one end of the second cable segment.

Preferably, a retractable cylinder bracket is provided on the bracket, the retractable cylinder is movably provided on the retractable cylinder bracket, and the retractable cylinder has a tendency to rotate around its center line.

Preferably, the synchronization member comprises: a driving gear, a driven gear, a first sprocket and a second sprocket. The driving gear is coaxially fixedly connected to the shaft end of at least one of the wheels. The driven gear meshes with the driving gear. The first sprocket is coaxially fixedly connected to the driven gear. The second sprocket is coaxially fixedly connected to the middle shaft, and an annular chain is arranged between the first sprocket and the second sprocket.

The beneficial effects of the utility model are:

1. The utility model adopts a cable reel mechanism, which can release the cable as the drilling vehicle moves forward, and when the drilling vehicle moves backward, the cable is stored by driving the reel to rotate, which can avoid excessive participation of personnel and avoid harm to workers.

Second, the utility model adopts a retractable drum, the rotation speed of which can be positively correlated with the wheel speed of the vehicle body, so that the retractable drum can control the cable pay-off speed, avoiding excessive cable being dragged to the ground and the power switch end being subjected to additional stress.

3. The utility model adopts a friction clutch, which can adjust the center axis speed when the diameter of the reel surface (including the case of winding cables) is too large from its center line, so that the rotation speed of the reel surface is consistent with the rotation speed of the curved surface of the retractable drum.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

Fig. 1 is a structural diagram of the utility model;

Fig. 2 is a top view of the utility model;

FIG3 is a partial structural diagram of a synchronizer of the present invention;

FIG. 4 is a cross-sectional view of the reel of the present invention.

DETAILED DESCRIPTION

In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

As shown in Figures 1 to 4, the utility model provides a cable retracting and releasing mechanism for a tunnel drilling rig. The cable retracting and releasing mechanism for a tunnel drilling rig is hinged to the rear of a drilling vehicle 6.

The cable retracting and releasing mechanism provided with the tunnel drilling rig includes: a bracket 1, a cable reel mechanism 2, a retracting and releasing cylinder 3, a first section of cable 4 and a second section of cable 5. Among them, the bracket 1 is hinged to the rear of the drilling vehicle 6. The cable reel mechanism 2 is arranged on the bracket 1. The retracting and releasing cylinder 3 is arranged on the bracket 1, and the retracting and releasing cylinder 3 is located on the side of the cable reel mechanism 2 away from the drilling vehicle 6, and the rotation speed of the retracting and releasing cylinder 3 is positively correlated with the running speed of the crawler chassis. One end of the first section of cable 4 is electrically connected to the power switch 7, and the other end is connected to the cable reel mechanism 2 after passing through the retracting and releasing cylinder 3, and the first section of cable 4 has a tendency to be wound on the cable reel mechanism 2. One end of the second section of cable 5 is electrically connected to the first section of cable 4, and the other end of the second section of cable 5 is electrically connected to the drilling vehicle 6.

Preferably, the bracket 1 includes a vehicle body, the upper part of the vehicle body includes a fixed platform, the lower part of the vehicle body includes wheels, at least one wheel among the multiple wheels is connected to the synchronizer, and the synchronizer is configured to drive the retractable cylinder 3 to rotate in proportion to the wheel speed.

The vehicle body can adopt a tracked chassis, that is, multiple wheels are wrapped with tracks.

Preferably, the cable reel mechanism 2 comprises: a reel support 21, a reel 22 and a central axis 23. The two reel supports 21 are arranged opposite to each other, and the reel supports 21 are fixed on the fixed platform. The reel 22 is a roller structure, movably arranged between the two reel supports 21, and the reel 22 has a tendency to rotate around its center line. The other end of the first section of cable 4 is fixedly connected to the reel 22 and extends to the inside of the reel 22. The central axis 23 runs through the middle of the reel 22, and the two ends of the central axis 23 are fixedly connected to the two reels 22 in a one-to-one correspondence, and the central axis 23 is connected to the support 1 through a bearing;

Preferably, the cable reel mechanism 2 further comprises a driving shaft 24, and the driving shaft 24 and the retracting cylinder 3 are driven by a chain. The cable reel mechanism 2 further comprises a friction clutch 25, one end of which is fixedly connected to the driving shaft 24, and the other end of which is fixedly connected to the central shaft 23.

When the friction clutch 25 is working, relative sliding can occur at both ends.

Preferably, the cable reel mechanism 2 also includes an explosion-proof slip ring 26, which is fixed to one side of the reel 22, and the side of the explosion-proof slip ring 26 facing the inside of the reel 22 is electrically connected to the other end of the first section cable 4, and the side of the explosion-proof slip ring 26 facing the outside of the reel 22 is electrically connected to one end of the second section cable 5.

Preferably, a retractable cylinder bracket is provided on the bracket 1, and the retractable cylinder 3 is movably provided on the retractable cylinder bracket, and the retractable cylinder 3 has a tendency to rotate around its center line.

When there is a difference in the cable line speed between the reel 3 and the reel, the friction clutch slips to achieve the reeling/releasing of the reel, and the cable length is consistent with the cable length released/reeled in the reel 22. A one-way damping device 27 is provided at one end of the friction clutch connected to the middle shaft to prevent the reel 22 from releasing the cable excessively and causing the cable to accumulate between the reel 22 and the reel 3.

Preferably, the synchronization member comprises: a driving gear 31, a driven gear 32, a first sprocket 33 and a second sprocket 34. The driving gear 31 is coaxially fixedly connected to the shaft end of at least one of the wheels. The driven gear 32 is meshed with the driving gear 31. The first sprocket 33 is coaxially fixedly connected to the driven gear 32. The second sprocket 34 is coaxially fixedly connected to the middle shaft 23, and an annular chain is arranged between the first sprocket 33 and the second sprocket 34.

The specific usage of the utility model is as follows:

When the drilling vehicle 6 moves forward, that is, the drilling vehicle 6 moves in the direction away from the power switch, the drilling vehicle 6 drags the bracket 1 to run, and the axial end of the wheel drives the retractable cylinder 3 to run through the synchronous member. During the rotation of the retractable cylinder 3, the cable can be pulled in the direction away from the drilling vehicle 6 to realize cable pay-out, and the pay-out distance is consistent with the running distance of the drilling vehicle 6.

When the drilling vehicle 6 moves toward the power switch, the reel 3 reels the cable under the action of the synchronous member, and drives the reel 22 to rotate, so that the reel 22 completes the cable storage. The reel 3 can avoid the extra stress generated when the cable is reeled or unreeled, and prevent the cable from being arranged in a disorderly manner when it is reeled on the reel 22.

In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims (7)

1. The random cable winding and unwinding mechanism of the tunnel drilling machine is hinged with the rear part of the drill carriage, and is characterized in that the random cable winding and unwinding mechanism of the tunnel drilling machine comprises:

The bracket is hinged with the rear part of the drill carriage;

the cable reel mechanism is arranged on the bracket;

the winding and unwinding cylinder is arranged on the bracket, is positioned at one side of the cable scroll mechanism far away from the drill carriage, and the rotating speed of the winding and unwinding cylinder is positively related to the running speed of the crawler chassis of the drill carriage;

One end of the first section of cable is electrically connected with the power supply switch, and the other end of the first section of cable is electrically connected with the explosion-proof slip ring on the cable reel mechanism after passing through the winding and unwinding cylinder, and the first section of cable has a tendency of winding on the cable reel mechanism;

And one end of the second section of cable is electrically connected with the fixed end of the explosion-proof slip ring, and the other end of the second section of cable is electrically connected with the drill carriage.

2. The random cable jack of claim 1, wherein the carriage includes a body, the upper body portion includes a stationary platform, the lower body portion includes wheels, at least one of the plurality of wheels is coupled to a synchronizing member configured to drive the jack to rotate at the same ratio of wheel speeds.

3. The random cable take-up and pay-off mechanism of an underground drill rig of claim 2, wherein the cable spool mechanism comprises:

The spool supports are oppositely arranged and fixed on the fixed platform;

The reel is movably arranged between the two reel brackets, the reel has a tendency of rotating around the central line of the reel, and the other end of the first section of cable is fixedly connected with the reel and extends into the reel;

The middle shaft penetrates through the middle part of the scroll, two ends of the middle shaft are fixedly connected with the two scroll in one-to-one correspondence, and the middle shaft is connected with the bracket through a bearing.

4. A random cable take-up and pay-off mechanism for a tunnel boring machine according to claim 3, wherein the cable reel mechanism further comprises a drive shaft driven by a chain between the drive shaft and the take-up and pay-off drum;

The cable reel mechanism further comprises a friction clutch, one end of the friction clutch is fixedly connected with the driving shaft, and the other end of the friction clutch is fixedly connected with the middle shaft.

5. The random cable take-up and pay-off mechanism of a tunnel drilling machine according to claim 4, wherein the explosion-proof slip ring is fixed on one side of the reel and rotates along with the reel, and one side of the explosion-proof slip ring facing the interior of the reel is electrically connected with the other end of the first section of cable, and one side of the explosion-proof slip ring facing the exterior of the reel is fixed on a bracket, does not rotate along with the reel and is electrically connected with one end of the second section of cable.

6. The random cable take-up and pay-off mechanism of the tunnel drilling machine according to claim 5, wherein a take-up and pay-off cylinder bracket is arranged on the bracket,

The retractable cylinder is movably arranged on the retractable cylinder support, and the retractable cylinder has a tendency of rotating around the center line of the retractable cylinder.

7. The random cable take-up and pay-off mechanism of an underground drill rig of claim 6, wherein the synchronizing member comprises:

The driving gear is coaxially and fixedly connected with the shaft end of at least one wheel of the wheels;

The driven gear is meshed with the driving gear;

the first chain wheel is coaxially and fixedly connected with the driven gear;

The second chain wheel is coaxially and fixedly connected with the middle shaft, and an annular chain is arranged between the first chain wheel and the second chain wheel.