Double-flange linear bearing

Abstract

The utility model belongs to the field of linear bearings, in particular to a double-flange linear bearing, which comprises a flange linear bearing main body and a mounting sleeve, the flange linear bearing main body comprises a bearing body, the bearing body is fixedly connected with a bearing shell, the bearing shell comprises a first fixing sleeve, and the first fixing sleeve is fixedly connected with the mounting sleeve. A connecting sleeve is fixed to one end of the first fixing sleeve, an annular sleeve is arranged on the connecting sleeve in a threaded fit mode, a second fixing sleeve is fixed to one end of the connecting sleeve, and a through groove is formed in the second fixing sleeve. Through the structural design of the through groove, the connecting sleeve and the annular sleeve, when the two flange linear bearing bodies do not need to be assembled and used through the connecting block, the connecting block can be moved into the through groove to be stored, on one hand, the maximum stroke of the flange linear bearing bodies in the moving process is guaranteed, meanwhile, the connecting block is protected, and the service life of the flange linear bearing bodies is prolonged. The situation that the connecting block is accidentally damaged is avoided, and the service life of the connecting block is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of linear bearings, in particular to a double-flange linear bearing. Background Art

[0002] Flange linear bearings are bearings in which rolling elements move between inner and outer rings to reduce motion resistance and provide linear motion. They typically consist of one or more rolling elements, inner and outer rings, a retainer that maintains the gap between the rolling elements, and a sealing device. A Chinese utility model patent (Announcement No. CN222010763U) discloses a precision linear bearing. The bearings utilize a connecting block, connecting grooves, and locating holes. To connect multiple linear bearings, the connecting block is inserted into the connecting groove, and a bolt is threaded into the connecting screw hole. The bolt then passes through the locating hole and the connecting block, connecting the two linear bearings.

[0003] However, the above device still has some shortcomings when in use: specifically, the connecting block used to connect the two flange linear bearings in the prior art is fixed on the bearing sleeve. Therefore, when a single flange linear bearing or two flange linear bearings are assembled and used, the connecting block on one of the flange linear bearings always protrudes outward, which not only affects the maximum motion stroke of the flange linear bearing, but also the connecting block that always protrudes outward is easily damaged by accidental collision. Therefore, a double flange linear bearing is proposed to address the above situation. Utility Model Content

[0004] In order to compensate for the problem in the prior art that the connecting block on the flange linear bearing always protrudes outward, which not only affects the maximum movement stroke of the flange linear bearing, but also the connecting block that always protrudes outward is easily damaged by accidental collision, the utility model proposes a double flange linear bearing.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a double-flange linear bearing, including a flange linear bearing body and a mounting sleeve, the flange linear bearing body includes a bearing body, and a bearing shell is fixedly connected to the bearing body.

[0006] The bearing housing includes a first fixing sleeve, one end of which is fixed with a connecting sleeve, an annular sleeve is threadedly fitted on the connecting sleeve, one end of which is fixed with a second fixing sleeve, and a through groove is provided on the second fixing sleeve.

[0007] A step groove is provided on the mounting sleeve, a step rod is rotatably fitted in the step groove, one end of the step rod passing through the step groove is fixed to the annular sleeve, and a connecting block that can move horizontally on the through groove is fixed to the side of the mounting sleeve away from the annular sleeve.

[0008] Preferably, the first fixing sleeve, the second fixing sleeve and the connecting sleeve are all annular tubular structures, the first fixing sleeve and the second fixing sleeve have the same diameter, and the connecting sleeve has a smaller diameter than the first fixing sleeve and the second fixing sleeve.

[0009] Preferably, the outer wall of the connecting sleeve is provided with an external thread, and the inner wall of the annular sleeve is provided with an internal thread matching the external thread.

[0010] Preferably, a connecting groove is provided on the side of the first fixing sleeve, and the connecting groove and the through groove are on the same horizontal line.

[0011] Preferably, a bolt hole is further provided on the first fixing sleeve, and the bolt hole is communicated with the connecting groove.

[0012] Preferably, a first screw hole is provided on the connecting block.

[0013] Preferably, a connecting flange is fixed to the outer wall of the first fixing sleeve, and a second screw hole coaxial with the bolt hole is provided on the connecting flange.

[0014] Preferably, when the two flange linear bearing bodies are assembled, the connecting block on one of the flange linear bearing bodies passes through the through slot and extends into the connecting slot on the other flange linear bearing body, and the second screw hole is threaded with a bolt, and the bolt is respectively passed through the bolt hole and the connecting slot and then cooperates with the first screw hole on the connecting block.

[0015] The utility model is beneficial in that:

[0016] 1. The utility model adopts the structural design of the through groove, connecting sleeve and annular sleeve. When the connecting block is not needed for assembling two flange linear bearing bodies, the connecting block can be moved into the through groove for storage. On the one hand, it ensures the maximum stroke of the flange linear bearing body during movement, and at the same time, it protects the connecting block, avoids accidental damage to the connecting block, and extends the service life of the connecting block.

[0017] 2. The utility model adopts the structural design of the mounting sleeve, the stepped groove and the stepped rod, and the connection between the stepped rod and the annular sleeve, so that the annular sleeve ensures the horizontal movement of the mounting sleeve and the connecting block during the rotation process, thereby providing convenience for the assembly and use of the two connecting blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a structural diagram of a flange linear bearing;

[0020] Figure 2 It is a structural diagram of the flange linear bearing body;

[0021] Figure 3 is a structural diagram of the bearing housing;

[0022] Figure 4 Schematic diagram of the assembly structure of the annular sleeve and the mounting sleeve;

[0023] Figure 5 for Figure 4 Schematic diagram of the locally enlarged structure at point A in the middle.

[0024] In the figure: 1. Flange linear bearing body; 101. Bearing body; 2. Bearing housing; 201. First fixing sleeve; 2010. Connecting groove; 2011. Bolt hole; 202. Second fixing sleeve; 2020. Through groove; 203. Connecting sleeve; 3. Annular sleeve; 4. Mounting sleeve; 401. Step groove; 402. Step rod; 5. Connecting block; 6. Connecting flange. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The following is combined with Figure 1-5 To further explain this application,

[0027] The embodiment of the present application discloses a double flange linear bearing. Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 A double-flange linear bearing includes a flange linear bearing body 1 and a mounting sleeve 4. The flange linear bearing body 1 includes a bearing body 101, and a bearing housing 2 is fixedly connected to the bearing body 101.

[0028] The bearing housing 2 includes a first fixing sleeve 201 , a connecting sleeve 203 is fixed at one end of the first fixing sleeve 201 , an annular sleeve 3 is threadedly fitted on the connecting sleeve 203 , a second fixing sleeve 202 is fixed at one end of the connecting sleeve 203 , and a through groove 2020 is provided on the second fixing sleeve 202 .

[0029] A stepped groove 401 is provided on the mounting sleeve 4, and a stepped rod 402 is rotatably fitted in the stepped groove 401. One end of the stepped rod 402 passes through the stepped groove 401 and is fixed to the annular sleeve 3. A connecting block 5 that can move horizontally on the through groove 2020 is fixed to the side of the mounting sleeve 4 away from the annular sleeve 3, and a first screw hole is provided on the connecting block 5.

[0030] Reference Figure 3 The first fixing sleeve 201 , the second fixing sleeve 202 and the connecting sleeve 203 are all circular tube structures. The diameters of the first fixing sleeve 201 and the second fixing sleeve 202 are the same, and the diameter of the connecting sleeve 203 is smaller than that of the first fixing sleeve 201 and the second fixing sleeve 202 .

[0031] The outer wall of the connecting sleeve 203 is provided with an external thread, and the inner wall of the annular sleeve 3 is provided with an internal thread matching the external thread.

[0032] By rotating the annular sleeve 3 , the annular sleeve 3 can be moved on the outer wall of the connecting sleeve 203 , thereby moving the mounting sleeve 4 and thus moving the connecting block 5 in the through groove 2020 .

[0033] Reference Figure 3 A connecting groove 2010 is provided on the side of the first fixing sleeve 201, and the connecting groove 2010 and the through groove 2020 are on the same horizontal line. A bolt hole 2011 is also provided on the first fixing sleeve 201, and the bolt hole 2011 is connected to the connecting groove 2010. A connecting flange 6 is fixed to the outer wall of the first fixing sleeve 201, and a second screw hole coaxial with the bolt hole 2011 is provided on the connecting flange 6.

[0034] When the two flange linear bearing bodies 1 are assembled, the connecting groove 2010 is used to be plugged in and matched with the connecting block 5 .

[0035] Among them, when the two flange linear bearing bodies 1 are assembled, the connecting block 5 on one flange linear bearing body 1 passes through the through groove 2020 and extends into the connecting groove 2010 on the other flange linear bearing body 1, and the second screw hole is threaded with a bolt, which passes through the bolt hole 2011 and the connecting groove 2010 respectively and then cooperates with the first screw hole on the connecting block 5.

[0036] By installing bolts on the second screw holes of the connecting flange 6, the bolts are respectively passed through the bolt holes 2011 and the connecting grooves 2010 and then matched with the first screw holes on the connecting block 5, thereby fixing the connecting block 5 and completing the fixed connection of the two flange linear bearing bodies 1.

[0037] Working principle: When the two flange linear bearing bodies 1 are assembled, the connecting block 5 on one of the flange linear bearing bodies 1 protrudes outward. At this time, the staff rotates the annular sleeve 3. Since one end of the step rod 402 rotates and fits on the step groove 401, and the other end is connected to the annular sleeve 3, as the annular sleeve 3 rotates, the mounting sleeve 4 moves horizontally on the connecting sleeve 203, so that the protruding connecting block 5 can be moved and retracted into the through groove 2020 for storage.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A double-flange linear bearing, comprising a flange linear bearing body (1), wherein the flange linear bearing body (1) comprises a bearing body (101), and a bearing housing (2) is fixedly connected to the bearing body (101), characterized in that: The bearing housing (2) comprises a first fixing sleeve (201), a connecting sleeve (203) being fixed to one end of the first fixing sleeve (201), an annular sleeve (3) being threadedly engaged on the connecting sleeve (203), a second fixing sleeve (202) being fixed to one end of the connecting sleeve (203), and a through groove (220) being formed on the second fixing sleeve (202); The utility model further comprises a mounting sleeve (4), wherein a stepped groove (401) is provided on the mounting sleeve (4), a stepped rod (402) is rotatably engaged in the stepped groove (401), one end of the stepped rod (402) passing through the stepped groove (401) is fixed to the annular sleeve (3), and a connecting block (5) that can move horizontally on the through groove (2020) is fixed on the side of the mounting sleeve (4) away from the annular sleeve (3).

2. The double-flange linear bearing according to claim 1, characterized in that: The first fixing sleeve (201), the second fixing sleeve (202) and the connecting sleeve (203) are all annular tubular structures; the first fixing sleeve (201) and the second fixing sleeve (202) have the same diameter; and the connecting sleeve (203) has a smaller diameter than the first fixing sleeve (201) and the second fixing sleeve (202).

3. The double-flange linear bearing according to claim 2, characterized in that: The outer wall of the connecting sleeve (203) is provided with an external thread, and the inner wall of the annular sleeve (3) is provided with an internal thread that matches the external thread.

4. The double-flange linear bearing according to claim 2, characterized in that: A connecting groove (2010) is provided on the side of the first fixing sleeve (201), and the connecting groove (2010) and the through groove (2020) are on the same horizontal line.

5. The double-flange linear bearing according to claim 4, characterized in that: The first fixing sleeve (201) is further provided with a bolt hole (2011), and the bolt hole (2011) is communicated with the connecting groove (2010).

6. The double-flange linear bearing according to claim 1, characterized in that: The connecting block (5) is provided with a first screw hole.

7. The double-flange linear bearing according to claim 5, characterized in that: A connecting flange (6) is fixed to the outer wall of the first fixing sleeve (201), and a second screw hole coaxial with the bolt hole (2011) is provided on the connecting flange (6).

8. The double-flange linear bearing according to claim 7, characterized in that: When the two flange linear bearing bodies (1) are assembled, the connecting block (5) on one of the flange linear bearing bodies (1) passes through the through slot (2020) and then extends into the connecting slot (2010) on the other flange linear bearing body (1); a bolt is threadedly engaged on the second screw hole; the bolt is respectively inserted into the bolt hole (2011) and the connecting slot (2010) and then engaged with the first screw hole on the connecting block (5).

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