Foundation screw quick adjusting device

Abstract

The invention relates to a quick adjusting device for a foundation screw, which comprises a connecting sleeve rod, the bottom of the connecting sleeve rod is connected with a bottom sleeve, the interior of the connecting sleeve rod is slidably connected with an upper end sleeve, the inner walls of the bottom sleeve and the upper end sleeve are both polygonal structures, the top of the upper end sleeve is connected with a central connecting rod, and the periphery of the central connecting rod is sleeved with a needle bearing; the needle bearing is clamped at a top opening of the connecting sleeve rod, the top end of the connecting sleeve rod is connected with a bearing gland, at least two operating handles are arranged on the outer wall of the connecting sleeve rod in an array mode, and a grip penetrates through the upper portion of the center connecting rod. According to the adjusting device, two sets of screw adjusting mechanisms of different specifications are integrated on one set of tool according to the structural characteristics of the screws of the large machine tool, adjustment of two overlapped screws can be achieved at the same time, operation is easy and convenient, and the adjusting device has remarkable advantages on adjustment of anchor pull screw nuts, anchor screws and anchor nuts of the large machine tool; and the working efficiency can be greatly improved, and the cost input of an adjusting tool is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of screw adjustment, and in particular to a quick adjustment device for anchor screws. Background Art

[0002] During the installation and commissioning of large gantry, the base or workbench is relatively wide, and anchor screws are needed in the middle to adjust the level. Pull nails are also needed in the middle of the anchor screws to fix them. In actual use, the tightness of the two needs to be adjusted to achieve the horizontal adjustment of the machine tool. Usually, the X-axis travel of large machine tools is 8 meters and the width is 4 meters. The number of anchor screws that need to be installed is relatively large, about 15. In addition, the length of the anchor screw is relatively long, about 13 cm, and there is a pull nail in the middle of the anchor screw, and the length of the pull nail exceeds the anchor screw by about 10 cm.

[0003] The existing screw adjustment tools on the market are mainly air cannon sleeves, with a standard length of 8cm and an extended length of 16cm. It can be seen that if air cannon sleeves are used, only the tightness of shorter anchor rivets can be adjusted, but the tightness of anchor nuts cannot be adjusted. Only non-standard parts can be customized. Customizing non-standard parts not only takes a long time and is expensive, but also has relatively fixed sizes, which has great limitations. For anchor nuts of different sizes, the corresponding sizes need to be customized, which is bound to increase the customization cost. In addition, when using, tools need to be replaced frequently, which seriously affects the work efficiency. Summary of the invention

[0004] In view of the above problems, the present invention provides a quick adjustment device for anchor screws, aiming to improve the adaptability and convenience of the anchor screw adjustment device.

[0005] The specific technical solution of the present invention is: a quick adjustment device for anchor screws, comprising a connecting sleeve rod, a bottom sleeve is connected to the bottom of the connecting sleeve rod, and an upper sleeve is slidably connected inside, the inner walls of the bottom sleeve and the upper sleeve are both polygonal structures, the top of the upper sleeve is connected to a center connecting rod, the outer peripheral sleeve of the center connecting rod is provided with a needle bearing, the needle bearing is clamped at the top opening of the connecting sleeve rod, the top of the connecting sleeve rod is connected to a bearing cover, at least two operating handles are arranged in an array on the outer wall of the connecting sleeve rod, and a handle is arranged through the upper part of the center connecting rod.

[0006] Furthermore, the inner wall at the bottom of the connecting sleeve rod is provided with an internal thread, the outer surface of the bottom sleeve is provided with an external thread, and the connecting sleeve rod and the bottom sleeve are threadedly connected via internal and external threads.

[0007] Furthermore, a boss is provided on the top of the bottom sleeve, and an upper convex step matching the boss is provided on the bottom inner wall of the connecting sleeve rod. After the bottom sleeve is connected to the connecting sleeve rod, the boss just fits with the upper convex step.

[0008] Furthermore, the inner wall at the top of the connecting sleeve rod is provided with a downward convex step that matches and engages with the needle bearing and is used to clamp the needle bearing.

[0009] Furthermore, an array of four threaded holes is provided on the outer peripheral wall of the bottom of the connecting sleeve rod, for screwing in stop screws to stabilize the bottom sleeve.

[0010] Furthermore, a threaded connection hole matching the bearing gland is formed on the top end surface of the connecting sleeve rod for connecting the bearing gland.

[0011] Furthermore, one end of the central connecting rod connected to the upper sleeve is a square block structure.

[0012] Furthermore, an array of four threaded holes is provided on the outer peripheral wall of the top of the upper sleeve, for screwing in stop screws to secure the connection between the upper sleeve and the central connecting rod.

[0013] Furthermore, four operating handles are arranged in an array on the outer wall of the connecting sleeve rod.

[0014] Furthermore, four through holes are arranged in an array on the outer wall of the connecting sleeve rod for connecting four operating handles.

[0015] The beneficial effects of the present invention are as follows: the adjustment device integrates two sets of screw adjustment mechanisms of different specifications into one set of tools according to the structural characteristics of large machine tool screws, and can realize the adjustment of two superimposed screws at the same time, and the operation is simple and convenient. In particular, the upper sleeve is slidably arranged in the connecting sleeve rod, and screws or rivets of different lengths can be adjusted. The connection mode of the bottom sleeve and the upper sleeve is easy to disassemble, which further improves the practicality of the device. The adjustment of screws of different specifications can be realized by replacing the bottom sleeve or the upper sleeve. It has significant advantages for the adjustment of anchor rivet nuts, anchor screws and anchor nuts of large machine tools, and can greatly improve the working efficiency and reduce the cost investment of adjustment tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a quick adjustment device for anchor screws of the present invention; Figure 2 for Figure 1 AA section view; Figure 3 This is an exploded schematic diagram of a quick adjustment device for anchor screws of the present invention; Figure 4 for Figure 3 The main view of Figure 5 This is a schematic diagram of the first type of screw structure suitable for adjustment in the present invention; Figure 6 This is a schematic diagram of the structure of the second type of screw suitable for adjustment in the present invention; In the figure: 1-connecting sleeve rod, 11-upper convex step, 12-lower convex step, 13-threaded hole, 14-threaded connecting hole, 15-through hole; 2-bottom sleeve, 21-boss; 3-upper sleeve, 31-threaded small hole; 4-center connecting rod; 5-bearing pressure cover; 6-needle bearing; 7-operating handle; 8-grip; 9-anchor rivet nut; 10-anchor screw; 11-anchor nut. DETAILED DESCRIPTION

[0017] In order to make the technical problems and technical solutions solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] like Figure 1 Figure 2 As shown, a quick adjustment device for anchor screws provided in this embodiment includes a connecting sleeve rod 1, the bottom of the connecting sleeve rod 1 is connected to a bottom sleeve 2, the interior of the connecting sleeve rod 1 is slidably connected to an upper sleeve 3, and the inner walls of the bottom sleeve 2 and the upper sleeve 3 are both polygonal structures, which can ensure that the sleeve and the nut are locked.

[0019] The top of the upper sleeve 3 is connected to a center connecting rod 4, and the outer periphery of the center connecting rod 4 is provided with a needle bearing 6 (more suitable for occasions where radial space is limited and mainly bears radial loads). The needle bearing 6 is clamped in the top opening of the connecting sleeve rod 1, so that the center connecting rod 4 and the upper sleeve 3 can slide up and down in the connecting sleeve rod 1.

[0020] The top end of the connecting sleeve rod 1 is connected to a bearing cover 5, which blocks the needle bearing 6 to prevent it from falling out; at least two operating handles 7 are arranged in an array on the outer wall of the connecting sleeve rod 1 to facilitate the rotation operation of the connecting sleeve rod 1; a handle 8 is arranged through the upper part of the central connecting rod 4 to facilitate the rotation operation of the central connecting rod 4.

[0021] The main connection methods of the above components are as follows Figure 2 Figure 3 As shown, the details are as follows: The inner wall at the bottom of the connecting sleeve rod 1 is provided with an internal thread, and the outer surface of the bottom sleeve 2 is provided with an external thread. The connecting sleeve rod 1 and the bottom sleeve 2 are threadedly connected through internal and external threads, which facilitates the disassembly and replacement of the bottom sleeve 2.

[0022] Furthermore, in order to facilitate determining whether the bottom sleeve 2 is installed in place, a boss 21 is provided on the top of the bottom sleeve 2, and an upper convex step 11 matching the boss 21 is provided on the bottom inner wall of the connecting sleeve rod 1. In this way, after the bottom sleeve 2 is connected to the connecting sleeve rod 1, the boss 21 just engages with the upper convex step 11, indicating that the bottom sleeve 2 is installed in place, and the engagement of the boss 21 with the upper convex step 11 also makes the installation of the bottom sleeve 2 more stable.

[0023] Furthermore, in order to ensure the stability of the bottom sleeve 2 when adjusting the screw, four threaded holes 13 are arranged in an array on the outer peripheral wall of the bottom of the connecting sleeve rod 1 for screwing in stop screws to stabilize the bottom sleeve 2 so that the bottom sleeve 2 will not loosen from the internal thread of the connecting sleeve rod 1 when rotating.

[0024] The inner wall at the top of the connecting sleeve rod 1 is provided with a lower convex step 12 which matches and engages with the needle bearing 6. When the needle bearing 6 is placed in the connecting sleeve rod 1, it is just stuck above the lower convex step 12 and is relatively stable.

[0025] A threaded connection hole 14 matching the bearing gland 5 is provided on the top surface of the connecting sleeve rod 1 . The bearing gland 5 can be installed on the top of the connecting sleeve rod 1 by passing a screw through the threaded hole on the bearing gland 5 and the threaded connection hole 14 .

[0026] One end of the center connecting rod 4 connected to the upper sleeve 3 is a square block structure, which is convenient for direct connection between the two parts; four threaded holes 31 are arranged in an array on the outer peripheral wall of the top of the upper sleeve 3, which are used to screw in stop screws to stabilize the connection between the upper sleeve 3 and the center connecting rod 4, and this connection method is convenient for disassembly and replacement of the upper sleeve 3.

[0027] Four through holes 15 are arranged in an array on the outer wall of the connecting sleeve rod 1 , and the four operating handles 7 can be inserted into the four through holes 15 . Specifically, the four operating handles 7 can be stably connected to the outer wall of the connecting sleeve rod 1 by threaded connection or welding.

[0028] It should be noted that the connection method of the components in the device can be as described above, or other more stable or convenient disassembly methods.

[0029] When manufacturing the various components of the device, existing product parts are used as much as possible; the length of the connecting sleeve rod 1 can be set according to the length range of commonly used screws in machine tools, so that the device can be suitable for adjusting screws of various lengths; the inner diameters of the bottom sleeve 2 and the upper sleeve 3 can be made into various specifications according to the screw size. When in use, only the bottom sleeve 2 and the upper sleeve 3 need to be replaced to adapt to different screw adjustments, further improving the practicality of the device.

[0030] The above device can be used to adjust Figure 5 Figure 6The two types of screw structures shown can also be used to adjust screws of other similar combined structures.

[0031] For adjusting the first type of screw structure (such as Figure 5 The operation process is as follows: Place the adjusting device directly above the screw, and tighten the bottom sleeve 2 on the outer periphery of the nut at the top of the anchor screw 10. Push the center connecting rod 4 to make the upper sleeve 3 slide downward and tighten on the outer periphery of the anchor rivet nut 9. Then turn the operating handle 7 to drive the connecting sleeve rod 1 to rotate, and then drive the bottom sleeve 2 to rotate. As the bottom sleeve 2 rotates, the anchor screw 10 is adjusted; turn the handle 8 to drive the center connecting rod 4 to rotate, and then drive the upper sleeve 3 to rotate. As the upper sleeve 3 rotates, the anchor rivet nut 9 is adjusted. During this process, since the upper sleeve 3 can slide in the connecting sleeve rod 1, the connecting sleeve rod 1 can provide a movement stroke for the up and down movement of the anchor rivet nut 9, thereby ensuring the adjustment of the anchor rivet nut 9 at different heights.

[0032] If the anchor nut 11 needs to be adjusted, the bottom sleeve 2 only needs to be replaced with a suitable size to adjust the anchor nut 11 .

[0033] For adjusting the second type of screw structure (such as Figure 6 The operation process is as follows: The bottom sleeve 2 is tightly sleeved on the outer periphery of the anchor nut 11, pushing the center connecting rod 4, so that the upper sleeve 3 slides downward and is tightly sleeved on the outer periphery of the anchor screw 10, and then the operating handle 7 is turned to adjust the anchor nut 11 as the bottom sleeve 2 is rotated; the handle 8 is turned to adjust the anchor screw 10 as the upper sleeve 3 is rotated. During this process, since the upper sleeve 3 can slide in the connecting sleeve rod 1, the connecting sleeve rod 1 can provide a movement stroke for the up and down movement of the anchor screw 10, thereby ensuring the adjustment of the anchor screw 10 at different heights.

[0034] In summary, the adjustment device integrates two sets of screw adjustment mechanisms of different specifications into one set of tools according to the structural characteristics of large machine tool screws, and can adjust two superimposed screws at the same time, which is simple and convenient to operate. In particular, the upper sleeve is set in the connecting sleeve rod by sliding, and screws or rivets of different lengths can be adjusted. The connection method of the bottom sleeve and the upper sleeve that is easy to disassemble further improves the practicality of the device. Adjusting screws of different specifications only requires replacing the bottom sleeve or the upper sleeve. It has significant advantages for the adjustment of large machine tool anchor rivet nuts, anchor screws and anchor nuts, and can greatly improve work efficiency and reduce the investment cost of adjustment tools.

[0035] The present invention is described in detail above through specific and preferred embodiments, but those skilled in the art should understand that the present invention is not limited to the embodiments described above, and any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick adjustment device for anchor screws, characterized in that: The invention comprises a connecting sleeve rod (1), wherein the bottom of the connecting sleeve rod (1) is connected to a bottom sleeve (2), and an upper sleeve (3) is slidably connected thereto. The inner walls of the bottom sleeve (2) and the upper sleeve (3) are both polygonal structures. The top of the upper sleeve (3) is connected to a central connecting rod (4). The outer periphery of the central connecting rod (4) is provided with a needle bearing (6). The needle bearing (6) is clamped at the top opening of the connecting sleeve rod (1). The top of the connecting sleeve rod (1) is connected to a bearing gland (5). At least two operating handles (7) are arranged in an array on the outer wall of the connecting sleeve rod (1), and a grip (8) is provided through the upper part of the central connecting rod (4).

2. A quick adjustment device for anchor bolts according to claim 1, characterized in that: The inner wall of the bottom of the connecting sleeve rod (1) is provided with an internal thread, and the outer surface of the bottom sleeve (2) is provided with an external thread. The connecting sleeve rod (1) and the bottom sleeve (2) are threadedly connected via internal and external threads.

3. A quick adjustment device for anchor screws according to claim 1 or 2, characterized in that: The top of the bottom sleeve (2) is provided with a boss (21), and the bottom inner wall of the connecting sleeve rod (1) is provided with an upper convex step (11) matching the boss (21); after the bottom sleeve (2) is connected to the connecting sleeve rod (1), the boss (21) is exactly engaged with the upper convex step (11).

4. A quick adjustment device for anchor screws according to any one of claim 3, characterized in that: The inner wall at the top of the connecting sleeve rod (1) is provided with a lower convex step (12) that matches and engages with the needle bearing (6) and is used to clamp the needle bearing (6).

5. A quick adjustment device for anchor bolts according to claim 4, characterized in that: The outer peripheral wall array at the bottom of the connecting sleeve rod (1) is provided with four threaded holes (13) for screwing in stop screws to secure the bottom sleeve (2).

6. The quick adjustment device for anchor bolts according to claim 1, characterized in that: The top end surface of the connecting sleeve rod (1) is provided with a threaded connection hole (14) matching the bearing cover (5) and used for connecting the bearing cover (5).

7. A quick adjustment device for anchor screws according to claim 5 or 6, characterized in that: One end of the central connecting rod (4) connected to the upper sleeve (3) is a square block structure.

8. The quick adjustment device for anchor bolts according to claim 7, characterized in that: The top peripheral wall of the upper sleeve (3) is provided with four threaded holes (31) in an array for screwing in stop screws to secure the connection between the upper sleeve (3) and the central connecting rod (4).

9. The quick adjustment device for anchor bolts according to claim 1, characterized in that: Four operating handles (7) are arranged in an array on the outer wall of the connecting sleeve rod (1).

10. A quick adjustment device for anchor bolts according to claim 9, characterized in that: Four through holes (15) are arranged in an array on the outer wall of the connecting sleeve rod (1) and are used to connect four operating handles (7).

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