JPS59138693A - Rodexchange apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rod changing device for a drilling device in which a drilling device is supported on a guide shell so as to be movable back and forth, and a plurality of rods are used to drill a hole. Rotate i1j+ so as to be close to or away from the axis of the organic material forming the storage body.
When the rod is transferred to the addition position or the storage position using the transfer device provided in the storage body, the rod transfer amount is detected and all transfer actuators are controlled.
A sleeve clamp is installed on the rear storage body, and a rod rotating device is installed on the front storage body so that the rod can be replaced safely and reliably.

When drilling a hole by connecting multiple rods,
Adding and retrieving rods manually is inefficient and dangerous, so mechanization is required. A rod exchanging device (Japanese Patent Publication No. 16836/1983) has been proposed, which mechanically interlocks the transporting action of moving rods in and out of a storage body to quickly perform rod exchanging operations.

However, with such a rod changing device, whether or not the rod transfer action and the rotational action of the storage body are interlocked depends on whether the latch is connected or disconnected when the rod changing device moves backward or forward, etc. It is easy for a person to erroneously engage or disengage the clutch, resulting in erroneous operation. For example, if the screw is incompletely disconnected when recovering the rod and the rod is reconnected to the rod and the screw is disconnected again, the storage object must be evacuated once. However, at this time, an accident may occur in which the rod transfer device is erroneously operated and the rod from which the screw has not been removed is attempted to be inserted, causing damage to the rod or racket. In addition, the mechanism that limits the rotation of the driven sprocket by friction (r,) may cause slippage υ, which may cause the feed leg of the rod transfer device to be affected and the rod cannot be accurately aligned with the organic axis.

The present invention provides a rod changing device that solves the above-mentioned problems in rod changing of a drilling device.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a rod changing device that can perform rod changing operations in the same order as in manual work and that does not cause erroneous operations due to operator error. The purpose of the invention is to provide a rod exchange device that can accurately transfer the rod and reliably align the rod position during rod exchange. To provide a rod exchanging device which enables easy rod exchanging and improves work efficiency.

That is, in the present invention, as in the illustrated embodiment, brackets 8 and 9 are provided at the front and rear parts of the guide shell 1, and each of the brackets 8 and 9 has a groove 16 for storing the rod 5, which is open at one end. The storage bodies 1o and ii formed with . In a rod changing device for a drilling device, which is provided with a transfer device 20 that reciprocates and carries the rod 5 out of the hole, the transfer device 2u is controlled to detect the transfer distance of the rod 5 and drive and stop the transfer actuator 60. It is characterized in that the rear storage body 11 is rotatably provided with a sleeve flang bag cylinder 65, and the front storage body 10 is provided with a rod rotation device 40. It concerns a rod exchange device.

The present invention will be explained below with reference to the illustrated embodiments. 1st
2 are a side view and a plan view of a rod exchanging device which is an embodiment of the present invention.
Figure B, line III-III in Figure 2;

It is a sectional view taken along the line IV-IV and the line V-V. A drilling device 2 is supported on a guide shell 1 of the drilling device so as to be movable back and forth, and the rod is connected to a shank rod 3 attached to the tip of the drilling device 2 via a sleeve 4 on the axis θ of the drilling device 2. A bit (not shown) is attached to the tip of the rod 5, and the hole is drilled by applying impact and rotation at the hole h2.

A foot pad 6 is provided at the tip of the guide 7 L 1, and a known centralizer 7 is attached to this foot pad 6, which holds the rod 5 during drilling and also clamps the IJ-bub 4 when replacing the rod 5. It is being On the front and rear (same figures on the right and left) sides of the guide shell 1,
Brackets 8 and 9 are fixedly installed. This bracket 8
．． 9, a rod storage body 10.11 is pivotally connected to the axis θ of the organic body 2 by a flat support shaft 12.13, and between the guide shell 1 and the rod storage body 10.11, It is rotatable by attaching rotating cylinders 14 and 15.

A groove 16.17 for storing the rod 5, which is open at one end, is formed in the storage body 10.11.
Support plates 18 and 19 are provided to support the front and rear of the rod 5 housed in the rod 17.

This storage body 10.11 is provided with a transfer device 20 for carrying the rod 5 into the groove 16.17 and carrying it out from the ID groove 16.17 to the opening side. This transfer device 20 includes a tension roller 21. provided near the opening of the groove 16.17.
22 and the feed sprocket installed near the other end) 25.24
Wind the feeding chain 25.26 between the grooves 16.17 and 16.17.
If it is stretched along the feed chain 25, 26, a protrusion 27 for increasing feed is attached to the feed chain 25,26. The transmission sprockets 23, 24+ are connected to each other in the same phase by a transmission shaft 29 having a driven sprocket 28 at the rear, and a driving sprocket 61 attached to a transfer actuator 60 provided in the storage body 11 at the rear. A driving chino 62 is stretched between the driven tin rocket 28 and the driven tin rocket 28. On the driven sprocket 28, dogs 66 are fixed at predetermined intervals to detect the amount of rotation and force and the distance the rod is transferred, and in the housing 11, the drive of the transfer actuator 60 is stopped by contact with the dogs 66. A control switch 34 is installed to perform the following.

There is a sleeve clamp device 6 in the rear storage body 11.
5 is provided. The sleeve clamp device 65 includes a clamp arm 6 that is opened by a clamp cylinder 37 at one end of an arm bracket 66 that is pivotally connected to the storage body 11.
8 is provided to clamp the sleeve 4, and an arm cylinder 39 is provided between the other end of the arm bracket 66 and the storage body 11 to enable rotation.

The front storage body 10 is provided with a rod rotation device 40 . The rod rotation device 40 has a slide base 42 mounted on a rail 41 installed in the front storage body 10 parallel to the hole plate axis θ so as to be movable back and forth with a slide cylinder ″46. A rotator body 44 is pivotally connected to the rotator body 44, and a rotator cylinder 45 is provided between the slide base 42 and the rotator cylinder 45 is rotatable. Inner He 8 reduction gear (not shown)
A rod rotation roller 47 that is rotated by a roller drive actuator 46 via a roller drive actuator 46, and two gripping rollers 4B that grip the rod 5 so that it does not fall under its own weight.
, 49 are provided.

The gripping rollers 4B and 49 are pivotally supported at one end of a roller case 52.56 which is pivotally connected to the low chita body 44 by swing shafts 50 and 51, and at the other end of the roller case 52.56. A spring 55, 56 is installed between the spring seat 54 provided on the low chita body 44 so that the mouth and the rad 5 can be elastically gripped, and an opening cylinder 57 is provided so that the grip can be released. ing.

Next, the work of adding rods 5 using the rod exchanging device will be explained. When the drilling with the previous rod 5a is completed, the sleeve 4a is clamped by the centralizer 7,
After separating the screws between the shank rod 6 and retracting the drilling plate 2, the storage body 10.11 is moved to the rotation cylinder 14.
15 so as to be close to the axis θ of the perforated plate 2.

Next, the transfer actuator 30 is driven to rotate the driven sprocket 28, and the feed chain 25, 26 is fed by rotating the feed sprocket 23, 24 via the transmission shaft 29.

The feed chain 25.26 is connected to the groove 16. of the storage body 10.11.
The rod 5 housed in the rod 17 is pushed by the feeding protrusion 27 and transferred to the opening side. When the rod 5 is moved a predetermined distance, the dog 6 provided on the driven sprocket 28
6 actuates the control switch 34 and deactivates the transfer actuator 60. Here, the rod 5 is gripped by the three rollers 47, 48, 49 of the rod rotation device 40 and the clamp arm 68 of the clamp device 35, and aligned with the axis θ of the drilling plate 2, and the drilling plate 2 is After screwing the shank rod 6 and the sleeve 4 together by applying rotation in the screwing direction to the shank rod 6 while moving it forward, the clamp arm 6
Loosen the clamp 8, and remove the drilling plate 2 and rod rotation device 4.
0 is advanced, and the rod 5 and the sleeve 4a of the previous rod 5a are screwed together, and the addition is completed. Then, the gripping rollers 48, 49 are opened and the storage body 10. jl is rotated in a direction away from the M line θ of the drilling plate 2, the clamp of the sleeve 4a by the centralizer 7 is loosened, and drilling is resumed. Thereafter, the required number of rods are added sequentially according to the length of the hole to complete the hole drilling. When drilling is completed, the rod 5 is recovered.

After retracting the perforation plate 2 until the front sleeve 4a is clamped by the centralizer 7 and clamping the sleeve 4a, the storage bodies 10 and 11 are rotated to align with the axis of the drilling organic 2, and the clamping device 35 clamps the rear sleeve 4, and the rod rotation device fiT40 grips the rod 5. Then, the shank rod 6 is reversed to disconnect the thread between it and the sleeve 4, and the clamping of the sleeve 4 by the clamping device 35 is loosened. Here, the Rondo rotation device 400 roller drive actuator 46 is activated,
The rod 5 is elastically gripped by rollers 47, 48, and 49,
Moreover, while the rod 5 is reversely rotated by the rod rotation roller 47, the slide cylinder 46 rotates the low cheetah body 44.
to retreat.

When the rod 5 is completely separated from the previous sleeve 4a,
The rotation of the rod rotation roller 47 is stopped, the transfer actuator 30 is reversed, and the rod 5 is moved to the storage body 10.1.
At this time, the rotator cylinder 45 is further extended and the rotator body 4440 is carried into the groove 16.
As the rotation progresses, the rod 5 is fed into the groove 16, 17 while being gripped by the rollers 47, 48, 49, thereby preventing the rod 5 from falling. Once the rod 5 is securely introduced into the groove 16.17, the opening cylinder 57 loosens the grip on the rod 5, the rotator cylinder 45 is retracted and the rotator body 44 is rotated outward, and then the housing 10.11 The perforated plate 2 is rotated and retracted away from the axis θ of the perforated plate 2. As described above, since the rotator cylinder 45 is extended in two stages, a double-acting cylinder can be used to easily and accurately feed the rotator cylinder 45.

Thereafter, the perforation plate 2 is advanced, the shank rod 3 is connected to the previous sleeve 4aK, and the same operations are repeated one after another to complete the collection.

As described above, according to the present invention, since the procedure for replacing the rod is the same as that for replacing the rod manually, it is possible to ensure that the rod is accurately and easily positioned without causing any erroneous operation by the operator. can. In addition, since the front and rear sleeves can be clamped, there is no risk of the sleeves falling off the rod due to loosening of the screws, and since support plates are provided at the front and rear of the housing, it is only possible to drill holes facing downwards, and facing upwards. It can be safely used for drilling operations in any position.

[Brief explanation of drawings]

1 and 2 are a side view and a plan view of a rod exchange device which is an embodiment of the present invention, and FIGS. 3, 4,
5 i9 is line III-III, line ■-■ in Figure 2,
It is a sectional view taken along the line V-V. In the figure, 1 is a guide shell, 2 is a drilling plate, 3 is a shank rod, 4.4a is a sleeve, 5.5a is a rod, 7 is a centralizer, 8 and 9 are brackets), 10 and 1.1 are storage bodies , 12.13 is the pivot. 16.17 is a groove, 20 is a transfer device, 60 is a transfer actuator, 64 is a control switch, and 35 is a sleeve clamp device! :, 40 is a rod rotating device. Patent applicant Furukawa Mining Co., Ltd. Agent Patent attorney Hakuya Mori Patent attorney
Yoshihiro Naito, Patent Attorney, Shimizu, Patent Attorney, Ki Yama Kaji Figure 4 (B) 19 b No. 5 N Procedural Amendment (Voluntary) Towards 1982 - March 3 - Commissioner of the Japan Patent Office Kazuo Wakasugi 1 , Indication of the case Patent application No. 58-10078 2, Name of the invention Rod changing device 3, Relationship with the case to be amended Patent issued 1 person Furukawa Mining Co., Ltd. 5, Date of amendment order 6, Due to the amendment increasing number of inventions

Claims (1)

[Claims] Brackets are provided at the front and rear portions of the guide shell, and each of the brackets has a storage body formed with a groove for storing rods with one end open, which is rotatably pivoted on a support shaft parallel to the axis of the housing. In a rod changing device for a drilling device, the storage body is provided with a transfer device that runs along the groove and takes the rod in and out, and the rod change device detects the transfer distance of the rod and transfers the rod to the transfer device. A control switch is provided to drive and stop the actuator, a sleeve clamp device is rotatably installed in the rear housing, and a rod rotation device is installed in the front housing so that it can move forward and backward. A rod exchange device characterized by being provided.