Inner sleeve floating device of raise boring machine

Abstract

The utility model relates to the technical field of raise boring machines, in particular to a raise boring machine inner sleeve floating device which comprises a bearing connector fixedly installed on a raise boring machine, a floating sleeve in sliding fit with the bottom of the bearing connector, a ratchet wheel sleeve arranged outside the floating sleeve and connected with the bearing connector, and a bearing flange for bearing a drill rod. The bearing flange is in threaded connection with the floating sleeve through a bolt, a height indicating hole is formed in the floating sleeve in a penetrating and clamping mode, a height indicating mark post is arranged in the height indicating hole in a clamping mode, and the height indicating mark post can ascend and descend along with the tightening force of the bolt. And the service life of the raise boring machine inner sleeve floating device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of raise boring machines, in particular to an inner sleeve floating device for a raise boring machine. Background Technique

[0002] A raise boring machine drives a hydraulic motor through the motor of the boring machine. The hydraulic motor drives a water faucet, and uses hydraulic power to transmit torque to a drill string system, driving a drill pipe and a drill bit to rotate. The hob on the pilot hole drill bit or the reaming drill bit makes pure rolling or micro slip along the working surface of the bottom rock under the action of the drilling pressure. At the same time, the axial pulling and pressing forces generated by the main engine cylinder also act on the pilot hole drill bit or the reaming drill bit through the power head and the drill pipe, so that the hob of the pilot hole drill bit rolls under the action of the drilling pressure, generating an impact load, so that the hob teeth impact, extrude and shear the rock, breaking the rock. The drill pipe needs to be replaced conveniently. The existing drill pipe is generally installed at the bottom of a floating sleeve on a raise boring machine through a bearing flange, and is generally connected by bolts. At the same time, the floating sleeve is guided up and down through a ratchet sleeve. However, during the screwing process, it is not easy to control the screwing amount, and the thread connection often easily slips. If it is not tightened tightly, it is easy to cause looseness. Therefore, it is necessary to design an inner sleeve floating device for a raise boring machine that is convenient to observe the installation tightening force, avoid equipment damage caused by overwork, and extend the service life of the equipment. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides an inner sleeve floating device for a raise boring machine, which is convenient to observe the installation tightening force, avoid equipment damage caused by overwork, and extend the service life of the equipment.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the utility model provides the following technical solutions: an inner sleeve floating device for a raise boring machine, including a bearing joint fixedly installed on the raise boring machine, a floating sleeve is slidably matched at the bottom of the bearing joint, a ratchet sleeve connected to the bearing joint is arranged outside the floating sleeve, and further includes a bearing flange for supporting the drill pipe. The bearing flange is threadedly connected to the floating sleeve through bolts. A height indicating hole is penetrated and clamped on the floating sleeve, and a height indicating rod is clamped in the height indicating hole. The height indicating rod can be lifted and lowered along with the tightening force of the bolts.

[0007] Preferably, the height indicating rod is arranged as a telescopic structure. The height indicating rod includes a plurality of sliding sleeves sleeved inside and outside each other. A warning top cover is fixedly installed at the top of the sliding sleeve at the top. Adjacent two sliding sleeves are connected by springs. A traction rope is connected between the warning top cover and the sliding sleeve at the bottom.

[0008] Preferably, a winding mechanism adapted to the towing rope is provided on the warning top cover. The winding mechanism includes a winding shaft sleeve rotatably connected to the warning top cover. The top end of the towing rope is fixedly installed on the winding shaft sleeve, and further includes a live driving member for driving the winding shaft sleeve to rotate.

[0009] Preferably, the live driving member includes a sliding shaft slidably and clamped with the winding shaft sleeve. One end of the sliding shaft is fixedly installed with a rotating handle, and a clamping groove adapted to the rotating handle is formed on the warning top cover.

[0010] Preferably, a convex edge is provided on the sliding sleeve, the spring is fixedly installed on the convex edge, and a convex bottom with the same diameter as the convex edge is fixedly installed at the bottom of the sliding sleeve at the bottom.

[0011] Preferably, a guide rod is fixedly installed on the sliding sleeve at the bottom. The bottom end of the towing rope is fixedly connected to the top end of the guide rod, and a sliding hole for guiding and sliding cooperation with the guide rod is formed in each of the other multiple sliding sleeves above.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a floating device for the inner sleeve of a raise boring machine, which has the following beneficial effects:

[0014] In this floating device for the inner sleeve of a raise boring machine, by providing a height indicating hole and placing a height indicating rod in the height indicating hole, it is convenient for the height indicating rod to perform corresponding lifting and lowering as the tightening force of the bolt changes. When the height indicating rod is in the middle position, it not only ensures the fastening stability but also ensures the up-and-down amplitude performance of the floating sleeve. The height indicating rod can be set as a telescopic structure, which is convenient for taking out the height indicating rod for replacement, thus eliminating the cumbersome operation of disassembling the floating sleeve and the ratchet sleeve from the raise boring machine and then replacing the height indicating rod. This improves the applicability, flexibility, and convenience. This floating device for the inner sleeve of a raise boring machine is convenient for observing the installation fastening force, avoiding over-tightening that may cause thread damage, resulting in part damage and the subsequent cumbersome process of replacing parts, and prolonging the service life of the equipment. Brief description of the drawings

[0015] Figure 1 is a schematic structural diagram of the whole utility model;

[0016] Figure 2 is of the utility model Figure 1 is a partial enlarged structural diagram of part A in the utility model;

[0017] Figure 3 is a schematic structural diagram of the partial sectional decomposition of the height indicating rod of the utility model;

[0018] Figure 4This is a schematic structural view of a partial section of the height indicating rod of the utility model.

[0019] Figure 5 This is a schematic structural view of the height indicating rod of the utility model.

[0020] Reference numerals in the drawings: 1, floating sleeve; 2, ratchet sleeve; 3, bearing joint; 4, height indicating rod; 5, bearing flange; 6, bolt; 7, sliding sleeve; 8, convex edge; 9, convex bottom; 10, warning top cover; 11, spring; 12, guide rod; 13, towing rope; 14, winding shaft sleeve; 15, sliding card shaft; 16, rotating handle; 17, card slot. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment:

[0023] Please refer to Figures 1-5 , an inner sleeve floating device for a raise boring machine, including a bearing joint 3 fixedly installed on the raise boring machine. A floating sleeve 1 is slidably fitted at the bottom of the bearing joint 3. A ratchet sleeve 2 fixedly connected to the bearing joint 3 is arranged outside the floating sleeve 1. It also includes a bearing flange 5 for supporting the drill pipe. The bearing flange 5 is threadedly connected to the floating sleeve 1 through a bolt 6. A height indicating hole is penetrated and clamped on the floating sleeve 1. A height indicating rod 4 is clamped in the height indicating hole. The height indicating rod 4 can be lifted and lowered with the tightening force of the bolt 6. By setting the height indicating hole and placing the height indicating rod 4 in the height indicating hole, it is convenient for the height indicating rod 4 to perform corresponding lifting and lowering with the tightening force of the bolt 6. When the height indicating rod 4 is in the middle position, it not only ensures the fastening stability but also ensures the up and down amplitude performance of the floating sleeve 1. The height indicating rod 4 can be set as a telescopic structure, which is convenient for taking out the height indicating rod 4 for replacement, thus eliminating the cumbersome operation of completely disassembling the floating sleeve 1 and the ratchet sleeve 2 from the raise boring machine and then replacing the height indicating rod 4, improving the applicability flexibility and convenience. This inner sleeve floating device for a raise boring machine is convenient for observing the installation fastening force, avoiding over-tightening that may cause thread damage, resulting in part damage and thus the cumbersome process of replacing parts, and extending the service life of the equipment.

[0024] Specifically, the height indication rod 4 is set as a telescopic structure. The height indication rod 4 includes a plurality of sliding sleeves 7 sleeved inside and outside each other. A warning top cover 10 is fixedly installed at the top of the sliding sleeve 7 located at the top. Adjacent two sliding sleeves 7 are connected by a spring 11. A traction rope 13 is connected between the warning top cover 10 and the sliding sleeve 7 located at the bottom. Setting the height indication rod 4 as a telescopic structure facilitates taking out the height indication rod 4 for replacement, thus avoiding disassembling the ratchet sleeve 2 and the floating sleeve 1 as a whole from the raise boring machine, improving the convenience of replacing the height indication rod 4. When contraction is required, the bottommost sliding sleeve 7 can be pulled up through the traction rope 13 and overcome the elastic force of the warning top cover 10 between adjacent two sliding sleeves 7, so that the lengths of the plurality of sliding sleeves 7 are compressed. Then, the height indication rod 4 as a whole can be pulled out from the height indication hole from the top.

[0025] Specifically, a winding mechanism adapted to the traction rope 13 is provided on the warning top cover 10. The winding mechanism includes a winding shaft sleeve 14 rotatably connected to the warning top cover 10. The top end of the traction rope 13 is fixedly installed on the winding shaft sleeve 14. It also includes a live driving member for driving the winding shaft sleeve 14 to rotate. Through the live driving member, it is convenient to wind the winding shaft sleeve 14, so that the traction rope 13 can be wound around the winding shaft sleeve 14, and thus the plurality of sliding sleeves 7 can be contracted. Further, a guiding ring adapted to the traction rope 13 is provided on the warning top cover 10. By providing the guiding ring, it is avoided that the traction rope 13 is cut by sharp corners, and the service life of the traction rope 13 is prolonged.

[0026] Specifically, the live driving member includes a sliding shaft 15 that is slidably and clamped with the winding shaft sleeve 14. One end of the sliding shaft 15 is fixedly installed with a rotating handle 16. A clamping groove 17 adapted to the rotating handle 16 is opened on the warning top cover 10. Holding the rotating handle 16, the sliding shaft 15 can be inserted into the winding shaft sleeve 14. Then, by rotating the rotating handle 16, the winding shaft sleeve 14 can be driven to rotate by the sliding shaft 15. When winding until the height indication rod 4 as a whole can be completely taken out from the height indication hole, the rotating handle 16 is pushed into the clamping groove 17, and then the height indication rod 4 can be directly taken out. Keep the current state during installation, then pull the rotating handle 16 out of the clamping groove 17 and pull the sliding shaft 15 out of the winding shaft sleeve 14. Under the action of the resilience of the plurality of springs 11, the plurality of sliding sleeves 7 are unfolded.

[0027] Specifically, a convex edge 8 is provided on the sliding sleeve 7. The spring 11 is fixedly installed on the convex edge 8. A convex bottom 9 with the same diameter as the convex edge 8 is fixedly installed at the bottom of the sliding sleeve 7 located at the bottom. Through the setting of the convex edge 8, the installation of the spring 11 is facilitated. Through the setting of the convex bottom 9, it is convenient to keep the height indication rod 4 as a whole vertical in the height indication hole.

[0028] Specifically, a guide rod 12 is fixedly installed on the sliding sleeve 7 at the bottom, and the bottom end of the towing rope 13 is fixedly connected to the top end of the guide rod 12. A plurality of other sliding sleeves 7 located above are all provided with sliding holes that are in guiding sliding fit with the guide rod 12. By the value of the guide rod 12, the guiding stability between the plurality of sliding sleeves 7 after compression is increased.

[0029] It should be noted that the "one embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiment may include specific features, structures or characteristics, but not necessarily each embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when combining an embodiment to describe a specific feature, structure or characteristic, it is within the knowledge scope of those skilled in the art to implement such a feature, structure or characteristic in combination with other embodiments, whether explicitly or implicitly described.

[0030] It should be easily understood that the terms "on...", "above...", and "over..." in the present disclosure should be interpreted in the broadest manner, so that "on..." not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above..." or "over..." not only includes the meaning of "above or over something", but may also include the meaning of "above or over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0031] In addition, for the convenience of description, spatial relative terms may be used in the text, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive words used in the text may be interpreted accordingly.

[0032] It should be noted that, in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0033] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A floating device for the inner sleeve of a raise drilling rig, characterized in that: The invention comprises a bearing joint (3) fixedly mounted on a raise drilling rig, wherein a floating sleeve (1) is slidably matched at the bottom of the bearing joint (3), a ratchet sleeve (2) connected to the bearing joint (3) is arranged on the outside of the floating sleeve (1), and a bearing flange (5) supporting a drill pipe is also included, wherein the bearing flange (5) and the floating sleeve (1) are threadedly connected via bolts (6), a height indication hole is penetrated through the floating sleeve (1), a height indication mark rod (4) is inserted into the height indication hole, and the height indication mark rod (4) can be raised and lowered as the bolts (6) are tightened.

2. The inner casing floating device of the raise boring machine according to claim 1, characterized in that: The height marking pole (4) is configured as a telescopic structure, and comprises a plurality of sliding sleeves (7) which are arranged together inside and outside, a warning top cover (10) is fixedly installed on the top of the sliding sleeve (7) located at the top, two adjacent sliding sleeves (7) are connected by a spring (11), and a traction rope (13) is connected between the warning top cover (10) and the sliding sleeve (7) located at the bottom.

3. The inner casing floating device of the raise boring machine according to claim 2 is characterized in that: The warning top cover (10) is provided with a reeling mechanism adapted to the traction rope (13), the reeling mechanism comprising a reeling sleeve (14) rotatably connected to the warning top cover (10), the top end of the traction rope (13) being fixedly mounted on the reeling sleeve (14), and also comprising a movable driving member for driving the reeling sleeve (14) to rotate.

4. The inner casing floating device of the raise boring machine according to claim 3 is characterized in that: The movable driving member comprises a sliding card shaft (15) which is slidably matched with the winding shaft sleeve (14), a rotating handle (16) is fixedly installed on one end of the sliding card shaft (15), and a card slot (17) which is matched with the rotating handle (16) is formed on the warning top cover (10).

5. The inner casing floating device of the raise boring machine according to claim 4, characterized in that: The sliding sleeve (7) is provided with a convex edge (8), the spring (11) is fixedly mounted on the convex edge (8), and a convex bottom (9) having the same diameter as the convex edge (8) is fixedly mounted on the bottom of the sliding sleeve (7) at the bottom.

6. The inner casing floating device of the raise boring machine according to claim 5, characterized in that: A guide rod (12) is fixedly mounted on the sliding sleeve (7) at the bottom, the bottom end of the traction rope (13) is fixedly connected to the top end of the guide rod (12), and the other multiple sliding sleeves (7) at the top are all provided with sliding holes that are slidably matched with the guide rod (12).

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