A rock drill rod connecting device and a pushing beam

Abstract

The utility model discloses a kind of clamping devices and advancing beams of rock drill rod joint rod, rod replacement, clamping device includes rack, first clamp, second clamp and synchronous pin, rack includes two side plates;First clamp, second clamp are hinged between two side plates, and first end between first clamp and second clamp is hinged with drive unit, and drive unit has telescopic stroke, and second end between first clamp and second clamp forms jaw;First waist slot is set on first clamp, second waist slot is set on second clamp, strip slot is set on two side plates, synchronous pin passes through first waist slot, second waist slot, and two ends of synchronous pin are respectively embedded or pass through two strip slots;The outer wall of two side plates is connected with the baffle that covers strip slot. The utility model is applied to drilling equipment field, can realize the clamping or loosening action of drill rod, to calibrate the position of drill rod in borehole, so that it can be aligned with the drill rod to be driven on advancing beam, effectively improve construction efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of drilling equipment or fixing devices, specifically a clamping device for connecting and changing rock drilling rods. Background Technology

[0002] As a major support method for underground engineering and rock slopes, anchor bolts are widely used in highway and railway tunnels and mining roadways. With the development of anchor bolt support, the forms, types and specifications of anchor bolts are becoming more and more diverse. In order to obtain better support effects, the length requirements of anchor bolts are also increasing, and anchor bolt holes need to be drilled deeper.

[0003] Currently, most drilling equipment on the market uses drill rods with a fixed drilling depth. When the required drilling depth exceeds the length of the drill rod, multiple drill rods need to be connected together. In current rod connection operations, although the position of the drill rod on the feed beam is fixed, the position of the drill rod already driven into the hole may be off, making it difficult to quickly connect the two drill rods, resulting in low overall construction efficiency. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a clamping device and a propulsion beam for connecting and changing rock drill rods. This device can clamp or release the drill rod, thereby calibrating the position of the drill rod inside the borehole and aligning it with the drill rod to be driven into the propulsion beam, effectively improving construction efficiency.

[0005] To achieve the above objectives, this utility model provides a clamping device for connecting and changing rock drilling rods, including a frame, a first clamp, a second clamp, and a synchronizing pin. The frame includes a base plate and two side plates spaced apart on the base plate.

[0006] The middle parts of the first clamp and the middle parts of the second clamp are both hinged between the two side plates. A drive unit is hinged between the first end of the first clamp and the first end of the second clamp, and the drive unit has a telescopic stroke. The second end of the first clamp and the second end of the second clamp form a jaw that can clamp the drill pipe.

[0007] The first clamp has a first waist-shaped groove, the second clamp has a second waist-shaped groove, and the two side plates have vertical strip grooves. The synchronizing pin passes through the first waist-shaped groove and the second waist-shaped groove, and the two ends of the synchronizing pin are respectively embedded in or pass through the two strip grooves.

[0008] Both side plates are detachably connected to baffles on their outer walls, and the baffles cover the strip grooves on the corresponding side plates.

[0009] In one embodiment, the first clamp is rotatably connected between the two side plates via a first pin, and the second clamp is rotatably connected between the two side plates via a second pin.

[0010] In one embodiment, the drive unit is a hydraulic cylinder or a pneumatic cylinder.

[0011] In one embodiment, a protective cover is provided on one side of the frame corresponding to the oil pipe or air pipe on the drive unit.

[0012] In one embodiment, the second end of the first clamp and the second end of the second clamp are each provided with a clamping block, and the jaws are located between the two clamping blocks.

[0013] In one embodiment, the clamping block includes a connecting part and a clamping part that are fixedly connected, and the connecting part is fixedly connected to the first clamp or the second clamp;

[0014] The clamping part is crescent-shaped, and the jaws are located between the two clamping parts.

[0015] In one embodiment, the clamping part is provided with a serrated groove.

[0016] In one embodiment, the baffle is bolted to the outer wall of the corresponding side plate.

[0017] In one embodiment, a recessed groove is provided on the inner wall of the baffle, the recessed groove covers the strip groove, and the end of the synchronizing pin passes through the strip groove and is embedded in the recessed groove.

[0018] To achieve the above objectives, this utility model also provides a propulsion beam, the end of which is provided with the aforementioned clamping device.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] 1. The clamping device in this utility model quickly opens or closes the jaws through the extension and retraction of the drive unit, thereby clamping or releasing the drill rod, thus calibrating the position of the drill rod in the borehole so that it can be aligned with the drill rod to be driven on the propulsion beam, effectively improving construction efficiency;

[0021] 2. The clamping device in this utility model ensures the synchronous movement of the first clamp and the second clamp by setting a synchronizing pin, thus ensuring the accuracy of the position of the drill rod clamped on the clamping device. At the same time, a detachable baffle is arranged on the outer wall of the side plate, which not only effectively prevents the synchronizing pin from falling off, but also facilitates the replacement of the synchronizing pin when it wears out. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a front view of the clamping device in Embodiment 1 of this utility model;

[0024] Figure 2 This is a cross-sectional view of the clamping device in Embodiment 1 of this utility model;

[0025] Figure 3 This is a schematic diagram of the clamping block in Embodiment 1 of this utility model;

[0026] Figure 4 This is a partial schematic diagram of the propulsion beam in Embodiment 2 of this utility model.

[0027] Reference numerals in the attached drawings: Frame 1, Base plate 101, Side plate 102, Rib plate 103, Protective cover 104, First clamp 2, Second clamp 3, Drive unit 4, Jaw 5, First pin 6, Second pin 7, Synchronous pin 8, Clamping block 9, Connecting part 901, Clamping part 902, Serrated groove 903, Push beam 10, Clamping device 11, Baffle 12.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] Example 1

[0035] like Figure 1 , Figure 2 The image shows a clamping device for connecting and changing rock drill rods disclosed in this embodiment, which mainly includes a frame 1, a first clamp 2, a second clamp 3, and a synchronizing pin 8.

[0036] The frame 1 includes a base plate 101 and two side plates 102 spaced apart on the base plate 101. The tops and / or middles of the two side plates are connected by stiffening plates 103. A first clamp 2 is rotatably connected between the two side plates via a first pin 6, and a second clamp 3 is rotatably connected between the two side plates 102 via a second pin 7. In specific implementation, the first clamp 2 can be fixedly engaged with the first pin 6, and then the first pin 6 can be rotatably engaged with the two side plates 102; or the first clamp 2 can be rotatably engaged with the first pin 6, and then the first pin 6 can be fixedly engaged with the two side plates. Similarly, the second clamp 3 can be fixedly engaged with the second pin 7, and then the second pin 7 can be rotatably engaged with the two side plates 102; or the second clamp 3 can be rotatably engaged with the second pin 7, and then the second pin 7 can be fixedly engaged with the two side plates 102. Fixed fits can be achieved through interference fits, key connections, welding, bolt connections, etc., while rotating fits can be achieved through clearance fits, bearing connections, etc.

[0037] A drive unit 4 is hinged between the first end of the first clamp 2 and the first end of the second clamp 3, and the drive unit 4 has a telescopic stroke. The second ends of the first clamp 2 and the second clamp 3 together form a jaw 5 capable of clamping the drill pipe. When the drive unit 4 extends, it moves the first end of the first clamp 2 away from the first end of the second clamp 3, and then moves the second end of the first clamp 2 towards the second end of the second clamp 3, thus gradually closing the jaw 5 and clamping the drill pipe. When the drive unit 4 shortens, it moves the first end of the first clamp 2 towards the first end of the second clamp 3, and then moves the second end of the first clamp 2 away from the second end of the second clamp 3, thus gradually opening the jaw 5 and releasing the drill pipe.

[0038] The first clamp 2 has a first waist-shaped groove, and the second clamp 3 has a second waist-shaped groove. Vertical strip grooves are formed on the two side plates 102. A synchronizing pin 8 passes through the first and second waist-shaped grooves, with both ends of the synchronizing pin 8 embedded in or passing through the strip grooves on the two side plates 102, thus achieving synchronized movement between the first clamp 2 and the second clamp 3. For example, when the first clamp 2 rotates, the synchronizing pin 8 slides along the first waist-shaped groove. Due to the lateral limitation of the strip groove, the synchronizing pin 8 can only move vertically, thereby forcing the second waist-shaped groove on the second clamp 3 to follow the movement of the synchronizing pin 8, thus causing the second clamp 3 to move synchronously with the first clamp 2.

[0039] Both side plates 102 have baffles 12 detachably connected to their outer walls. For example, the baffles 12 can be bolted to the outer walls of the side plates 102. The baffles 12 cover the corresponding slots on the side plates, which not only effectively prevents the synchronizing pins 8 from falling off, but also facilitates replacement when the synchronizing pins 8 wear out. Preferably, the inner wall of the baffle 12 has a recessed groove that covers the slot. The end of the synchronizing pin 8 passes through the slot and is embedded in the recessed groove. By setting the recessed groove, the length of the synchronizing pin 8 is effectively increased, preventing the synchronizing pin 8 from bending and falling off the slot.

[0040] In this embodiment, the drive unit 4 is a hydraulic cylinder or a pneumatic cylinder. Since both hydraulic cylinders and pneumatic cylinders require corresponding oil supply lines and air supply lines, in this embodiment, preferably, a protective cover 104 is provided on one side of the frame 1 corresponding to the oil pipe or air pipe on the drive unit 4 to protect the oil pipe or air pipe of the drive unit 4. Of course, in specific applications, a protective cover can also be provided on the other side of the frame 1.

[0041] In practical implementation, both the second end of the first clamp 2 and the second end of the second clamp 3 are equipped with clamping blocks 9, and the jaws 5 are located between the two clamping blocks 9. (Reference) Figure 3 The clamping block 9 includes a connecting part 901 and a clamping part 902 that are fixedly connected. The connecting part 901 is fixedly connected to the first clamp 2 or the second clamp 3 by means of bolts or welding. The clamping part 902 is crescent-shaped, and the jaw 5 is located between the two clamping parts 902. By setting the clamping part 902 to be crescent-shaped, the drill rod can be quickly inserted into the jaw 5 when the jaw 5 is opened.

[0042] In a preferred embodiment, the clamping part 902 is provided with a serrated groove 903 to increase the clamping force when clamping the drill rod and improve the stability of the clamping device.

[0043] Example 2

[0044] This embodiment discloses a propulsion beam, with reference to... Figure 4 The end of the push beam 10 is provided with a clamping device 11 as described in Embodiment 1, so that the drill rod in the borehole can be fixed by the clamping device 11 during the rod connection operation, thereby calibrating the position of the drill rod in the borehole so that it can be aligned with the drill rod to be driven on the push beam, effectively improving construction efficiency.

[0045] The above description is only a preferred embodiment of the present utility model and does not limit the scope of protection of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A clamping device for connecting and changing rock drilling rods, characterized in that, It includes a frame, a first clamp, a second clamp, and a synchronizing pin. The frame includes a base plate and two side plates spaced apart on the base plate. The middle parts of the first clamp and the middle parts of the second clamp are both hinged between the two side plates. A drive unit is hinged between the first end of the first clamp and the first end of the second clamp, and the drive unit has a telescopic stroke. The second end of the first clamp and the second end of the second clamp form a jaw that can clamp the drill pipe. The first clamp has a first waist-shaped groove, the second clamp has a second waist-shaped groove, and the two side plates have vertical strip grooves. The synchronizing pin passes through the first waist-shaped groove and the second waist-shaped groove, and the two ends of the synchronizing pin are respectively embedded in or pass through the two strip grooves. Both side plates are detachably connected to baffles on their outer walls, and the baffles cover the strip grooves on the corresponding side plates.

2. The clamping device for connecting and changing rock drilling rods according to claim 1, characterized in that, The first clamp is rotatably connected between the two side plates via a first pin, and the second clamp is rotatably connected between the two side plates via a second pin.

3. The clamping device for connecting and changing rock drill rods according to claim 1, characterized in that, The drive unit is a hydraulic cylinder or a pneumatic cylinder.

4. The clamping device for connecting and changing rock drilling rods according to claim 3, characterized in that, A protective cover is provided on one side of the frame corresponding to the oil pipe or air pipe on the drive unit.

5. The clamping device for connecting and changing rock drilling rods according to any one of claims 1 to 4, characterized in that, Both the second end of the first clamp and the second end of the second clamp are provided with clamping blocks, and the jaws are located between the two clamping blocks.

6. The clamping device for connecting and changing rock drilling rods according to claim 5, characterized in that, The clamping block includes a connecting part and a clamping part that are fixedly connected, and the connecting part is fixedly connected to the first clamp or the second clamp. The clamping part is crescent-shaped, and the jaws are located between the two clamping parts.

7. The clamping device for connecting and changing rock drilling rods according to claim 6, characterized in that, The clamping part is provided with a serrated groove.

8. The clamping device for connecting and changing rock drilling rods according to any one of claims 1 to 4, characterized in that, The baffle is bolted to the outer wall of the corresponding side plate.

9. The clamping device for connecting and changing rock drilling rods according to any one of claims 1 to 4, characterized in that, The inner wall of the baffle is provided with a recessed groove, which covers the strip groove, and the end of the synchronizing pin passes through the strip groove and is embedded in the recessed groove.

10. A propulsion beam, characterized in that, The end of the propulsion beam is provided with a clamping device as described in any one of claims 1 to 9.

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