Large heavy-load ball screw with load separation structure

Abstract

The utility model discloses a large-scale heavy-load ball screw with a load separation structure, which relates to the field of large-scale heavy-load ball screws and comprises a screw body and a fixing seat, mounting rods are fixedly mounted on two sides of the screw body, and a nut is sleeved on the outer wall of the screw body. The outer wall of the nut is provided with a plurality of circulator bodies, one side of the nut is fixedly provided with an end cover, the outer wall of the end cover is sleeved with a lantern ring, and the lantern ring is internally provided with a plurality of bolts; a sliding groove is formed in the fixing base, two rotating balls are arranged in the sliding groove, and a mounting sleeve is fixedly mounted on one side of each rotating ball. By arranging the fixing base, the large heavy-load ball screw can be disassembled, the rotating ball nut can be conveniently replaced subsequently according to the load needing to be borne by the screw, and by arranging the bolt, the nut can be replaced according to the load requirement of the large heavy-load ball screw.

Description

Technical Field

[0001] The utility model relates to the technical field of large-scale heavy-load ball screws, in particular to a large-scale heavy-load ball screw with a load separation structure. Background Art

[0002] The structure of large heavy-load ball screw The heavy-load ball screw consists of a ball screw, a ball circulation body and support components. Working principle The working principle of the heavy-load ball screw is based on the rolling of the ball on the thread section. The ball transmits force and motion by rolling.

[0003] For example, the announcement number CN208117252U discloses an auxiliary supporting device for a ball screw of a large lathe, including a bed body and a supporting device, a base and a bed box are provided on the upper part of the bed body, the bed box is arranged on the right part of the base, a ball screw support frame is provided on the right part of the base, a ball screw is provided between the bed box and the ball screw support frame, a movable pallet track is provided on the base, a movable pallet is provided on the movable pallet track, a track groove is provided on the base, the supporting device includes a supporting device slider, a supporting device connecting block, a supporting device linkage block, a supporting block base, a cushion block and a supporting block, wherein a supporting device is provided under the long-distance ball screw, and the supporting device can be linked with the movable pallet, under the action of the supporting device, it can It can well solve the problem of bending deformation caused by the deadweight of the ball screw over a long distance, thereby increasing the service life, improving the motion stiffness and motion accuracy. However, this large heavy-loaded ball screw still has other shortcomings when in use. First, since the two ends of the screw need to be connected and fixed, the connection between the screw end and the support needs to be contacted when the screw is disassembled. Since the screw end needs to be transmitted, the connection between the screw end and the connecting part is relatively complicated. When disassembling the screw, there are many requirements for disassembly of the support part, which leads to certain inconveniences in disassembling the screw. It is impossible to disassemble the large heavy-loaded ball screw, which makes it inconvenient to replace the nut according to the load requirements of the large heavy-loaded ball screw. Therefore, there are still certain shortcomings when using this device. Utility Model Content

[0004] The purpose of the utility model is to provide a large heavy-duty ball screw with a load separation structure to solve the problem raised in the above background technology that when the large heavy-duty ball screw on the market is in use, since the two ends of the screw need to be connected and fixed, the connection between the screw end and the support member needs to be contacted when the screw is disassembled. Since the screw end needs to be transmitted, the connection between the screw end and the connecting member is relatively complicated. When the screw is disassembled, more disassembly requirements for the support member are required, resulting in certain inconveniences in disassembling the screw, and the large heavy-duty ball screw cannot be disassembled, thereby making it inconvenient to replace the nut according to the load requirements of the large heavy-duty ball screw.

[0005] To achieve the above object, the utility model provides the following technical solution: a large heavy-duty ball screw with a load separation structure, comprising a screw body and a fixed seat, mounting rods are fixedly installed on both sides of the screw body, and a nut is sleeved on the outer wall of the screw body;

[0006] The outer wall of the nut is provided with a plurality of circulator bodies, an end cover is fixedly installed on one side of the nut, a collar is sleeved on the outer wall of the end cover, and a plurality of bolts are arranged inside the collar;

[0007] A slide groove is provided inside the fixing seat, two rotating balls are arranged inside the slide groove, and a mounting sleeve is fixedly mounted on one side of the rotating ball.

[0008] Furthermore, a groove is provided at the top of the mounting rod, a clamping slot is provided at the top of one side of the mounting rod, and one end of the mounting rod passes through the mounting sleeve.

[0009] Furthermore, the groove and the card slot are communicated with each other, and a magnet is sleeved inside the card slot.

[0010] Furthermore, the inner walls on the upper and lower sides of the installation sleeve are provided with cavity grooves, the upper and lower sides of the installation sleeve are penetrated by threaded rods, the outer wall of the threaded rod is provided with a threaded sleeve, and a movable plate is fixedly installed on the bottom of the threaded sleeve.

[0011] Furthermore, four springs are fixedly installed on the inner wall of the movable plate, a connecting plate is fixedly installed on one side of the spring, a magnetic block is fixedly connected to the other side of the connecting plate, and a clamping rod is fixedly installed on the other side of the connecting plate and one end passes through the movable plate.

[0012] Furthermore, the threaded rod and the threaded sleeve are threadedly connected, and the threaded sleeve, the movable plate and the cavity groove are movably connected.

[0013] Furthermore, the magnetic block and the magnet are arranged to attract each other, and the magnetic block and the inner wall of the movable plate are arranged to move.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The large heavy-duty ball screw with a load separation structure can be disassembled by setting a fixed seat, so that the ball screw can be replaced according to the load required by the screw. Bolts are also provided to replace the nuts according to the load requirements of the large heavy-duty ball screw. The specific contents are as follows:

[0016] 1. A fixed seat is provided, and each threaded rod is manually rotated counterclockwise in sequence, so that each threaded rod drives the threaded sleeve to move in the installation sleeve, so that each threaded sleeve drives the moving plate to move inward in the corresponding cavity groove, so that the moving plate drives the clamping rod penetrating the inner wall to correspond to the clamping groove in sequence, so that the attraction between the magnetic block connected to the clamping rod through the connecting plate and the magnet in the clamping groove is reduced, so that the rebound force of the spring drives the clamping rod connected to the connecting plate to move inward and retract into the moving plate, and the installation rod connected to the fixed seat and the screw body can be separated, so as to disassemble the large heavy-load ball screw;

[0017] 2. Bolts are set. After the large heavy-load ball screw is disassembled, several bolts on the collar are manually removed by a wrench or a torque wrench to separate the end cover from the nut. Then the nut is manually unscrewed to facilitate the disassembly of the nut, so that the nut can be replaced according to the load requirement of the large heavy-load ball screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the local structure of the mounting rod of the utility model;

[0020] Figure 3 This is a side view structural diagram of the fixing seat of the utility model;

[0021] Figure 4 This is a schematic diagram of the local structure of the fixing seat of the utility model;

[0022] Figure 5 This is a side view of the structure of the mounting sleeve and mounting rod of the utility model;

[0023] Figure 6 This is a schematic diagram of the local structure of the installation sleeve of the utility model;

[0024] Figure 7 It is a schematic diagram of the partial structure of the threaded rod and threaded sleeve of the utility model;

[0025] Figure 8 It is a schematic diagram of the partial cross-sectional structure of the movable plate of the utility model.

[0026] In the figure: 1. screw body; 2. mounting rod; 3. fixing seat; 4. nut; 5. circulator body; 6. end cover; 7. collar; 8. bolt; 9. groove; 10. slot; 11. slide groove; 12. turning ball; 13. mounting sleeve; 14. cavity groove; 15. threaded rod; 16. threaded sleeve; 17. moving plate; 18. spring; 19. connecting plate; 20. magnetic block; 21. clamping rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 8 , the utility model provides the following technical solutions:

[0029] Embodiment 1: In order to solve the problem that large heavy-load ball screws on the market need to be connected and fixed at both ends when in use, so that when the screw is disassembled, the connection between the screw end and the support member needs to be contacted, and since the screw end needs to be transmitted, the connection between the screw end and the connecting member is relatively complicated. When the screw is disassembled, more disassembly requirements for the support member are required, resulting in certain inconveniences in disassembling the screw, and it is impossible to disassemble the large heavy-load ball screw, thereby inconvenient to replace the nut according to the load requirements of the large heavy-load ball screw. Please refer to the attached Figure 1 -Attached Figure 8, including a screw body 1 and a fixed seat 3, a slide groove 11 is provided inside the fixed seat 3, two rotating balls 12 are arranged inside the slide groove 11, and a mounting sleeve 13 is fixedly installed on one side of the rotating ball 12. A groove 9 is provided on the top of the mounting rod 2, a clamping groove 10 is provided on the top of one side of the mounting rod 2, and one end of the mounting rod 2 passes through the mounting sleeve 13. The groove 9 and the clamping groove 10 are connected, and a magnet is sleeved inside the clamping groove 10. Cavity grooves 14 are provided on the inner walls of the upper and lower sides of the mounting sleeve 13, and a threaded rod 15 passes through the upper and lower sides of the mounting sleeve 13. The outer wall of the threaded rod 15 is sleeved with a threaded sleeve 16, and a moving plate 17 is fixedly installed on the bottom of the threaded sleeve 16. Four springs 18 are fixedly installed on the inner wall of the moving plate 17, a connecting plate 19 is fixedly installed on one side of the spring 18, a magnetic block 20 is fixedly connected to the other side of the connecting plate 19, and a clamping rod 21 is fixedly installed on the other side of the connecting plate 19 and one end passes through the moving plate 17. The threaded rod 15 is threadedly connected to the threaded sleeve 16, and the threaded sleeve 16 and the movable plate 17 are movably connected to the cavity groove 14. The magnetic block 20 and the magnet are arranged to attract each other, and the magnetic block 20 and the inner wall of the movable plate 17 are movably arranged. By manually rotating each threaded rod 15 counterclockwise in sequence, each threaded rod 15 drives the threaded sleeve 16 to move in the installation sleeve 13, so that each threaded sleeve 16 drives the movable plate 17 to move inward in the corresponding cavity groove 14, so that the movable plate 17 drives the clamping rod 21 penetrating the inner wall to correspond to the clamping groove 10 in sequence, so that the attraction between the magnetic block 20 connected by the clamping rod 21 through the connecting plate 19 and the magnet in the clamping groove 10 is reduced, so that the rebound force of the spring 18 drives the clamping rod 21 connected to the connecting plate 19 to move inward and retract into the movable plate 17, and the mounting rod 2 connected to the fixed seat 3 and the screw body 1 can be separated, so as to disassemble the large heavy-load ball screw.

[0030] Example 2: The nut can be replaced according to the load requirements of the large and heavy-duty ball screw. Figure 1 -Attached Figure 2 , mounting rods 2 are fixedly installed on both sides of the screw body 1, and nuts 4 are sleeved on the outer wall of the screw body 1; several circulator bodies 5 are arranged on the outer wall of the nut 4, and an end cover 6 is fixedly installed on one side of the nut 4, and a collar 7 is sleeved on the outer wall of the end cover 6, and several bolts 8 are arranged inside the collar 7. After the large heavy-duty ball screw is disassembled, the several bolts 8 on the collar 7 are manually removed by a wrench or a torque wrench to separate the end cover 6 from the nut 4, and then the nut 4 is manually unscrewed, which is convenient for disassembly of the nut 4, so that the nut 4 can be replaced according to the load requirements of the large heavy-duty ball screw.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, 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 large heavy-duty ball screw with a load separation structure, comprising a screw body (1) and a fixing seat (3), mounting rods (2) being fixedly mounted on both sides of the screw body (1), and a nut (4) being sleeved on the outer wall of the screw body (1); Features: The outer wall of the nut (4) is provided with a plurality of circulator bodies (5); an end cover (6) is fixedly mounted on one side of the nut (4); a collar (7) is sleeved on the outer wall of the end cover (6); and a plurality of bolts (8) are arranged inside the collar (7); A slide groove (11) is provided inside the fixing seat (3), two rotating balls (12) are arranged inside the slide groove (11), and a mounting sleeve (13) is fixedly mounted on one side of the rotating ball (12).

2. A large heavy-duty ball screw with a load separation structure according to claim 1, characterized in that: A groove (9) is provided at the top of the installation rod (2), a clamping groove (10) is provided at the top of one side of the installation rod (2), and one end of the installation rod (2) passes through the installation sleeve (13).

3. A large heavy-duty ball screw with a load separation structure according to claim 2, characterized in that: The groove (9) is communicated with the clamping slot (10), and a magnet is sleeved inside the clamping slot (10).

4. A large heavy-duty ball screw with a load separation structure according to claim 1, characterized in that: The inner walls of the upper and lower sides of the installation sleeve (13) are provided with cavity grooves (14), the upper and lower sides of the installation sleeve (13) are penetrated by threaded rods (15), the outer wall of the threaded rod (15) is provided with a threaded sleeve (16), and the bottom of the threaded sleeve (16) is fixedly installed with a movable plate (17).

5. A large heavy-duty ball screw with a load separation structure according to claim 4, characterized in that: Four springs (18) are fixedly mounted on the inner wall of the movable plate (17); a connecting plate (19) is fixedly mounted on one side of the spring (18); a magnetic block (20) is fixedly connected to the other side of the connecting plate (19); a clamping rod (21) is fixedly mounted on the other side of the connecting plate (19) and one end of the clamping rod passes through the movable plate (17).

6. A large heavy-duty ball screw with a load separation structure according to claim 4, characterized in that: The threaded rod (15) and the threaded sleeve (16) are threadedly connected, and the threaded sleeve (16), the movable plate (17) and the cavity groove (14) are movably connected.

7. A large heavy-duty ball screw with a load separation structure according to claim 5, characterized in that: The magnetic block (20) and the magnet are arranged to attract each other, and the magnetic block (20) and the inner wall of the movable plate (17) are arranged to move.

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