A locking type roller shaft fixing structure

Abstract

The utility model discloses a lock catch formula roller axle fixed structure, including bearing seat, bearing, left end cover, right end cover, connect left end cover with bearing seat left side's first bolt, and bearing seat is provided with the bearing hole of installation bearing. Still include second bolt, and the bearing hole right side on bearing seat still is provided with annular recess and the aperture along the axial direction and annular recess lead through, and right end cover includes the right cover body of being provided with axle hole, sets up right abutting portion in right cover body for the abutting of bearing right side and sets up the lock catch of right cover body outside, and the cross section area of lock catch is less than the area of aperture, and the cover body is provided with first screw hole and second screw hole, and the bearing seat is provided with the first screw hole corresponding with first hole, and second screw hole is located the inside of annular recess, and first hole can with aperture correspond. Advantage: right end cover and bearing seat have realized the design of quick -mounting quick -disassembly, and it is convenient to dismantle the bearing in narrow area, and the convenience of bearing replacement is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing fixing equipment, specifically a locking roller fixing structure. Background Technology

[0002] When various rollers rotate or move linearly, they require bearings at both ends for support. Bearings are typically mounted in bearing housings. These housings usually house the bearings, with end caps on both sides providing axial fixation. When a bearing reaches a certain usage period, its wear affects transmission accuracy, necessitating replacement. However, with traditional bearing housings, replacing the bearing requires removing all the screws on the end caps to expose the bearing. This is particularly problematic when dealing with confined space on the shaft end, making disassembly and assembly extremely difficult, time-consuming, and labor-intensive.

[0003] Therefore, it is necessary to provide a locking roller fixing structure. Utility Model Content

[0004] This utility model provides a locking roller shaft fixing structure, which effectively solves the problem of inconvenient bearing disassembly.

[0005] The technical solution adopted in this utility model is: A locking roller fixing structure includes a bearing housing, a bearing, a left end cover, a right end cover, and a first bolt connecting the left end cover and the left side of the bearing housing. The bearing housing has a bearing hole for mounting the bearing. It also includes a second bolt. The bearing housing has an annular groove and a notch communicating axially with the annular groove on the right side of the bearing hole. The right end cover includes a right cover body with a shaft hole, a right abutment part for abutting the right side of the bearing, and a locking buckle on the outside of the right cover body. The cross-sectional area of ​​the locking buckle is smaller than the area of ​​the notch. The cover body has a first screw hole and a second screw hole. The bearing housing has a first screw hole corresponding to the first hole, and the second screw hole is located inside the annular groove. The first hole can correspond to the notch.

[0006] Furthermore, there are two notches and two latches, and the two latches are symmetrical about the central axis of the right end cover.

[0007] Furthermore, when the No. 2 bolt is threaded into the No. 2 screw hole, the right end cover is rotated by turning the No. 2 bolt. When the No. 2 bolt passes through the No. 1 hole and is threaded into the No. 1 screw hole, the right end cover is prevented from rotating.

[0008] Furthermore, the left end cover includes a left cover body with a shaft hole and a left abutting part on the left cover body for abutting the left end of the bearing. The left cover body is provided with several through holes in the circumferential direction. The bearing seat is provided with several No. 3 screw holes corresponding one-to-one with the through holes. The No. 1 bolt passes through the through holes and is threadedly connected to the No. 3 screw holes.

[0009] Furthermore, the right abutment portion and the left abutment portion correspond to each other, and the outer sides of the right abutment portion and the left abutment portion abut against the inner wall of the bearing hole.

[0010] Furthermore, both the left and right abutment portions have chamfered edges on their outer sides.

[0011] Furthermore, the second bolt is a knurled bolt.

[0012] The beneficial effects of the utility model: The right end cover and bearing housing are designed for quick installation and removal, which makes it easy to disassemble the bearing in a narrow area and improves the convenience of bearing replacement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the locking roller fixing structure and the roller after installation, provided in the embodiments of this application.

[0014] Figure 2 This is a side view of the locking roller fixing structure provided in an embodiment of this application.

[0015] Figure 3 This is a partial schematic diagram of the right end cover of the locking roller fixing structure provided in an embodiment of this application.

[0016] The markings in the diagram are as follows: 1. Bearing housing; 2. Bearing; 3. Left end cover; 4. Right end cover; 5. Bolt No. 1; 6. Bolt No. 2; 100. Annular groove; 101. Notch; 41. Right cover body; 42. Right abutment part; 43. Lock; 31. Left cover body; 32. Left abutment part; 401. No. 2 screw hole; 402. No. 1 hole; 7. Roller shaft. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 , Figure 2 and Figure 3As shown, the embodiment of this application provides a locking roller fixing structure, which includes a bearing seat 1, a bearing 2, a left end cover 3, a right end cover 4, and a No. 1 bolt 5 connecting the left end cover 3 and the left side of the bearing seat 1. The bearing seat 1 is provided with a bearing hole for installing the bearing 2. It also includes a second bolt 6. The bearing seat 1 is provided with an annular groove 100 and a notch 101 that communicates with the annular groove 100 in the axial direction on the right side of the bearing hole. The right end cover 4 includes a right cover body 41 with a shaft hole, a right abutting part 42 provided on the right cover body 41 for abutting the right side of the bearing 2, and a latch 43 provided on the outside of the right cover body 41. The cross-sectional area of ​​the latch 43 is smaller than the area of ​​the notch 101. The right cover body 41 is provided with a first hole 402 and a second screw hole 401. The bearing seat 1 is provided with a first screw hole corresponding to the first hole 402. The second screw hole 401 is located inside the annular groove 100. The first hole 402 can correspond to the notch 101.

[0019] In actual use, when in working condition, the roller 7 is located inside the bearing 2. The second bolt 6 passes through the first hole 402 and is threaded into the first screw hole to fix the right end cover 4 to the bearing seat 1. When it is necessary to disassemble the bearing 2, the second bolt 6 is unscrewed from the first screw hole, and then the second bolt 6 is threaded into the first screw hole. The second bolt 6 is turned to make the right end cover 4 rotate, so that the lock 43 rotates to the position corresponding to the notch 101. Then the right end cover 4 is pulled out axially to separate the right end cover 4 from the bearing seat 1, and then the bearing 2 is taken out.

[0020] In the above design, the right end cover 4 and the bearing housing 1 are designed for quick installation and quick removal, which makes it easy to disassemble the bearing 2 in a narrow area and improves the convenience of replacing the bearing 2.

[0021] Specifically: such as Figure 2 As shown, there are two notches 101 and two latches 43, and the two latches 43 are symmetrical about the central axis of the right end cover 4.

[0022] During actual assembly, first align the two latches 43 with the two notches 101 respectively, then push the right end cover 4 axially so that the notches 101 align with the annular grooves 100. Then rotate the right end cover 4 so that the notches 101 extend into the annular grooves 100. When it is necessary to disassemble the right end cover 4, rotate the right end cover 4 so that the latches 43 rotate to the position corresponding to the notches 101, and then pull the right end cover 4 out axially.

[0023] In the above design, the quantity and positional relationship between the notch 101 and the latch 43 have the advantages of simple structure and efficient assembly.

[0024] Specifically: when the second bolt 6 is threadedly connected to the second screw hole 401, the right end cover 4 is rotated by turning the second bolt 6. When the second bolt 6 passes through the first hole 402 and is threadedly connected to the first screw hole, the right end cover 4 is prevented from rotating.

[0025] Specifically: such as Figure 1 As shown, the left end cover 3 includes a left cover body 31 with a shaft hole and a left abutting part 32 provided on the left cover body 31 for abutting the left end of the bearing 2. The left cover body 31 is provided with several through holes in the circumferential direction. The bearing seat 1 is provided with several No. 3 screw holes corresponding to the through holes one by one. The No. 1 bolt 5 passes through the through holes and is threadedly connected to the No. 3 screw holes.

[0026] When actually disassembling bearing 2, the left end cover 3 is not disassembled. Bolt 5 ensures the fixation of left end cover 3 and bearing seat 1 by connecting to bolt hole 3.

[0027] In the above design, the connection between the left end cover 3 and the bearing seat 1 can ensure a long-term stable connection.

[0028] Specifically: such as Figure 1 As shown, the right abutment portion 42 and the left abutment portion 32 correspond to each other, and the outer sides of the right abutment portion 42 and the left abutment portion 32 abut against the inner wall of the bearing hole.

[0029] In actual use, the outer walls of the left abutment part 32 and the right abutment part 42 contact and abut against the inner wall of the bearing hole to prevent radial vibration of the left abutment part 32 and the right abutment part 42.

[0030] In the above design, the way the right abutment part 42 and the left abutment part 32 are fitted with the bearing hole can ensure the stability of the left abutment part 32 and the right abutment part 42 on the bearing seat 1 and prevent shaking.

[0031] Specifically, both the left abutment portion 32 and the right abutment portion 42 have chamfers on their outer sides.

[0032] During actual assembly, the left abutment part 32 and the right abutment part 42 extend into the bearing hole from the left and right sides of the bearing housing 1, respectively.

[0033] In the above design, the chamfered structure of the left abutment part 32 and the right abutment part 42, as well as the specific implementation method, facilitates guidance when they are inserted into the bearing housing 1.

[0034] Specifically: Bolt No. 6 is a knurled bolt.

[0035] In actual use, the right end cover 4 is rotated by turning the second bolt 6.

[0036] In the above design, the knurled bolts have an enlarged flange compared to ordinary bolts, which increases the contact area with the hand and makes them easier for people to operate.

[0037] In further detail, it should be understood that the above description is only a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking roller fixing structure, comprising a bearing housing (1), a bearing (2), a left end cover (3), a right end cover (4), and a No. 1 bolt (5) connecting the left end cover (3) and the left side of the bearing housing (1), wherein the bearing housing (1) is provided with a bearing hole for mounting the bearing (2), characterized in that: It also includes a second bolt (6). The bearing seat (1) is provided with an annular groove (100) on the right side of the bearing hole and a notch (101) that communicates with the annular groove (100) in the axial direction. The right end cover (4) includes a right cover body (41) with a shaft hole, a right abutting part (42) provided on the right cover body (41) for abutting the right side of the bearing (2), and a latch (43) provided on the outside of the right cover body (41). The cross-sectional area of ​​the latch (43) is smaller than the area of ​​the notch (101). The cover body is provided with a first screw hole (401) and a second screw hole. The bearing seat (1) is provided with a first screw hole (401) corresponding to the first hole (402). The second screw hole is located inside the annular groove (100). The first hole (402) can correspond to the notch (101).

2. The locking roller fixing structure according to claim 1, characterized in that: The number of the notch (101) and the number of the latches (43) are both two, and the two latches (43) are symmetrical about the central axis of the right end cover (4).

3. The locking roller fixing structure according to claim 1, characterized in that: When the second bolt (6) is threaded into the second screw hole, the right end cover (4) is rotated by turning the second bolt (6). When the second bolt (6) passes through the first hole (402) and is threaded into the first screw hole (401), the right end cover (4) is prevented from rotating.

4. The locking roller fixing structure according to claim 1, characterized in that: The left end cover (3) includes a left cover body (31) with a shaft hole and a left abutting part (32) provided on the left cover body (31) for abutting the left end of the bearing (2). The left cover body (31) is provided with several through holes in the circumferential direction. The bearing seat (1) is provided with several No. 3 screw holes corresponding to the through holes. The No. 1 bolt (5) passes through the through holes and is threadedly connected to the No. 3 screw holes.

5. The locking roller shaft fixing structure according to claim 4, characterized in that: The right abutment (42) and the left abutment (32) correspond to each other, and the outer sides of the right abutment (42) and the left abutment (32) abut against the inner wall of the bearing hole.

6. The locking roller shaft fixing structure according to claim 5, characterized in that: Both the left abutment (32) and the right abutment (42) have chamfers on their outer sides.

7. The locking roller fixing structure according to claim 1, characterized in that: The second bolt (6) is a knurled bolt.

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