Needle mounting device for cylindrical roller bearing without outer ring

Abstract

The utility model discloses a pin mounting device for a cylindrical roller bearing without an outer ring, which relates to the field of pin mounting devices for bearings and comprises a workbench, a jig fixedly mounted at the top end of the workbench, a movable block movably connected in the jig, a pneumatic telescopic rod arranged at the bottom end of the movable block, and a connecting pipe fixedly mounted at the bottom of the pneumatic telescopic rod. A pneumatic telescopic rod is fixedly mounted on the workbench, a connecting pipe is fixedly mounted at the top end of the pneumatic telescopic rod, an air bag is fixedly connected to the end of the connecting pipe, a driving mechanism is fixedly mounted at the top end of the workbench, and a feeding pipe is fixedly connected to the output end of the driving mechanism. The elongated pneumatic telescopic rod ejects the movable block out of the jig, then the bearing is ejected out of the jig, the bearing can be taken out conveniently, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of needle installation of bearings, in particular to a needle installation device for cylindrical roller bearings without outer rings. Background Art

[0002] Cylindrical roller bearings are mostly used in large and medium-sized electric motors and locomotives. The accuracy grades are generally PO, P6, P5, P4, and P2. The cylindrical rollers and raceways are line contact bearings with large load capacity. They mainly bear radial loads. The friction between the rolling elements and the ribs of the rings is small. They can withstand large radial loads and are used in high-speed operation.

[0003] A Chinese patent (publication number: CN210218460U) discloses a needle-loading device for cylindrical roller bearings without outer rings, including a workbench and a rotating disk arranged on the workbench, an elastic transmission tube and a driving member. The top of the rotating disk has an annular groove for placing the inner ring of the bearing and a columnar through groove for placing the cylindrical roller and the retaining frame. The annular groove is concentrically arranged with the rotating disk. There are several columnar through grooves and they are evenly distributed around the outer circle of the annular groove. The elastic transmission tube is correspondingly arranged above the rotating disk. The elastic transmission tube includes a horizontal section, an elastic bending section and a vertical section connected in sequence. The horizontal section is arranged at the discharge end of the conveyor belt and is used to receive the cylindrical roller transmitted from the conveyor belt. The bottom of the vertical section is connected to the driving member, and the driving member can drive the vertical section to swing around the elastic bending section. The utility model has a simple structure and low manufacturing cost, solves the problem of one-time mechanical needle installation of cylindrical roller bearings without outer rings, and greatly saves labor costs. However, after the bearing is assembled, the device needs to manually remove the bearing from the jig. Since the complete bearing has a certain fixed mass and the height of the bearing protruding from the jig is limited, it is difficult to manually remove it, which is inconvenient to use.

[0004] In order to solve the above problems, we have made improvements and proposed a needle-loading device for cylindrical roller bearings without outer rings. Utility Model Content

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The utility model provides a needle-loading device for cylindrical roller bearings without outer rings, comprising a workbench, a jig fixedly mounted on the top of the workbench, a movable block movably connected inside the jig, a pneumatic telescopic rod provided at the bottom end of the movable block, a connecting tube fixedly mounted on the bottom of the pneumatic telescopic rod, an airbag fixedly connected to the end of the connecting tube, a driving mechanism fixedly mounted on the top end of the workbench, and a feeding pipe fixedly connected to the output end of the driving mechanism.

[0007] As an optimal technical solution of the present invention, the driving mechanism includes a bracket, and the bracket is fixedly connected to the top of the workbench, the left side of the bracket is fixedly connected to a telescopic cylinder, the output end of the telescopic cylinder is fixedly connected to a mounting bracket, and the left end of the mounting bracket is fixedly connected to the feeding pipe.

[0008] As an optimal technical solution of the present invention, the bottom end of the mounting frame is fixedly connected to a movable plate, the top end of the workbench is fixedly connected to a fixed plate, and the fixed plate cooperates with the movable plate, and an airbag is provided between the movable plate and the fixed plate.

[0009] As a preferred technical solution of the present invention, a pair of guide posts are fixedly connected to the right end of the mounting frame, and the guide posts pass through the bracket.

[0010] As a preferred technical solution of the present invention, a support column is fixedly connected to the middle of the top of the workbench, an extension plate is fixedly connected to the top of the support column, and the upper end surface of the extension plate is flush with the upper end surface of the fixture.

[0011] As a preferred technical solution of the present invention, the bottom end of the pneumatic telescopic rod is fixedly connected to a fixing seat, and the bottom end of the fixing seat is fixedly connected to the top end of the workbench.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model squeezes the airbag, and the air in the airbag is sent into the interior of the pneumatic telescopic rod through the connecting tube. As the air enters, the pneumatic telescopic rod extends, and the extended pneumatic telescopic rod pushes the movable block out of the jig, and then pushes the bearing out of the jig, making it easier to take out the bearing and more convenient to use.

[0014] 2. In the utility model, when the telescopic cylinder contracts, it drives the movable plate to move to the right, thereby making the movable plate cooperate with the fixed plate to squeeze the airbag, thereby assisting in squeezing the airbag and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is the formal stereogram of this utility model;

[0017] Figure 2 It is a rear perspective view of the present utility model;

[0018] Figure 3 It is a partial expansion diagram of the utility model;

[0019] In the figure: 1. Workbench; 2. Bracket; 3. Telescopic cylinder; 4. Mounting frame; 5. Feeding pipe; 6. Jig; 7. Extension plate; 8. Support column; 9. Guide column; 10. Movable plate; 11. Fixed plate; 12. Airbag; 13. Connecting pipe; 14. Fixed seat; 15. Pneumatic telescopic rod; 16. Movable block. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0021] Example: Figure 1-3 As shown, a needle-loading device for cylindrical roller bearings without outer rings comprises a workbench 1, a jig 6 is fixedly mounted on the top of the workbench 1, a movable block 16 is movably connected inside the jig 6, the movable block 16 is a part of the jig 6, a pneumatic telescopic rod 15 is provided at the bottom end of the movable block 16, a connecting tube 13 is fixedly mounted on the bottom of the pneumatic telescopic rod 15, an airbag 12 is fixedly connected to the end of the connecting tube 13, a driving mechanism is fixedly mounted on the top of the workbench 1, a feeding pipe 5 is fixedly connected to the output end of the driving mechanism, the bottom end of the pneumatic telescopic rod 15 is fixedly connected to a fixing seat 14, and the bottom end of the fixing seat 14 is fixedly connected to the top of the workbench 1, the turning part of the feeding pipe 5 is an expansion tube, and the rest of the parts are rigid straight tubes;

[0022] Manually place the base and inner ring of the bearing into the jig 6, align the bottom end of the feed tube 5 with the cylindrical groove on the jig 6, and the cylindrical roller enters the cylindrical groove along the feed tube 5. Rotate the jig 6 so that the cylindrical roller fills each cylindrical groove in turn, push the cylindrical roller into the inner ring of the bearing, and then insert the retaining frame into the base. The cylindrical roller is constrained between the retaining frame and the inner ring of the bearing. The bearing is assembled, and then squeeze the airbag 12. The air in the airbag 12 is sent into the interior of the pneumatic telescopic rod 15 through the connecting tube 13. As the air enters, the pneumatic telescopic rod 15 extends, and the extended pneumatic telescopic rod 15 pushes the movable block 16 out of the jig 6, and then pushes the bearing out of the jig 6, making it easy to remove the bearing and more convenient to use.

[0023] Specifically, such as Figure 1 As shown, the driving mechanism includes a bracket 2, and the bracket 2 is fixedly connected to the top of the workbench 1. The left side of the bracket 2 is fixedly connected to the telescopic cylinder 3, the output end of the telescopic cylinder 3 is fixedly connected to the mounting bracket 4, and the left end of the mounting bracket 4 is fixedly connected to the feeding pipe 5. The telescopic cylinder 3 drives the mounting bracket 4 to move horizontally, and then the vertical part of the feeding pipe 5 moves horizontally, changing the position of the bottom end of the feeding pipe 5. When the bottom end of the feeding pipe 5 coincides with the cylindrical through groove, blanking is realized. When the bottom end of the feeding pipe 5 is at the end face position of the jig 6, blanking stops.

[0024] Specifically, such as Figure 1 and Figure 2 As shown, the bottom end of the mounting frame 4 is fixedly connected with a movable plate 10, the top end of the workbench 1 is fixedly connected with a fixed plate 11, and the fixed plate 11 cooperates with the movable plate 10, and an airbag 12 is provided between the movable plate 10 and the fixed plate 11. When the telescopic cylinder 3 contracts, the movable plate 10 is driven to move to the right, and then the movable plate 10 cooperates with the fixed plate 11 to squeeze the airbag 12, thereby assisting in squeezing the airbag 12 and making it more convenient to use.

[0025] Specifically, such as Figure 1 As shown, a pair of guide columns 9 are fixedly connected to the right end of the mounting frame 4, and the guide columns 9 pass through the bracket 2. During the horizontal movement of the mounting frame 4, the guide columns 9 move along the bracket 2 to support the mounting frame 4 and ensure that the mounting frame 4 can move horizontally.

[0026] Specifically, such as Figure 1 As shown, a support column 8 is fixedly connected to the middle of the top of the workbench 1, and an extension plate 7 is fixedly connected to the top of the support column 8, and the upper end surface of the extension plate 7 is flush with the upper end surface of the jig 6. The extension plate 7 is arranged on the right side of the jig 6 through the support column 8, which plays the role of extending the stroke of the feed tube 5, and prevents the bottom end of the feed tube 5 from being suspended in the air when the movable plate 10 squeezes the airbag 12. In addition, the setting of the extension plate 7 provides space for the feed tube 5 to stay in the middle, and prevents the cylindrical roller from being ejected from the jig 6 when the feed tube 5 moves to the right, thereby facilitating the installation of the retaining frame.

[0027] Working principle: Manually place the bearing base and the inner ring of the bearing into the jig 6, align the bottom end of the feed tube 5 with the cylindrical groove on the jig 6, and the cylindrical roller enters the cylindrical groove along the feed tube 5. Rotate the jig 6 so that the cylindrical roller fills each cylindrical groove in turn, and pushes the cylindrical roller into the inner ring of the bearing. The telescopic cylinder 3 works by moving the feed tube 5 to the left side of the extension plate 7 through the mounting frame 4, and then inserts the retaining frame into the base. The cylindrical roller is constrained between the retaining frame and the inner ring of the bearing. The bearing is assembled, and then the telescopic cylinder 3 continues to move to the right, driving the movable plate 10 to move to the right, and then the movable plate 10 cooperates with the fixed plate 11 to squeeze the airbag 12. The air in the airbag 12 is sent into the interior of the pneumatic telescopic rod 15 through the connecting tube 13. As the air enters, the pneumatic telescopic rod 15 extends, and the extended pneumatic telescopic rod 15 pushes the movable block 16 out of the jig 6, and then pushes the bearing out of the jig 6.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A needle-loading device for cylindrical roller bearings without outer rings, comprising a workbench (1), characterized in that: A jig (6) is fixedly mounted on the top of the workbench (1), a movable block (16) is movably connected inside the jig (6), a pneumatic telescopic rod (15) is provided at the bottom end of the movable block (16), a connecting pipe (13) is fixedly mounted on the bottom of the pneumatic telescopic rod (15), an air bag (12) is fixedly connected to the end of the connecting pipe (13), a driving mechanism is fixedly mounted on the top of the workbench (1), and a feeding pipe (5) is fixedly connected to the output end of the driving mechanism.

2. A needle-loading device for cylindrical roller bearings without outer rings according to claim 1, characterized in that: The driving mechanism comprises a bracket (2), and the bracket (2) is fixedly connected to the top of the workbench (1); a telescopic cylinder (3) is fixedly connected to the left side of the bracket (2); an output end of the telescopic cylinder (3) is fixedly connected to a mounting frame (4), and a left end of the mounting frame (4) is fixedly connected to a feeding pipe (5).

3. A needle-loading device for cylindrical roller bearings without outer rings according to claim 2, characterized in that: The bottom end of the mounting frame (4) is fixedly connected to a movable plate (10), the top end of the workbench (1) is fixedly connected to a fixed plate (11), and the fixed plate (11) cooperates with the movable plate (10), and an air bag (12) is provided between the movable plate (10) and the fixed plate (11).

4. A needle-loading device for cylindrical roller bearings without outer rings according to claim 2, characterized in that: A pair of guide posts (9) are fixedly connected to the right end of the mounting frame (4), and the guide posts (9) pass through the bracket (2).

5. The needle-loading device for cylindrical roller bearings without outer rings according to claim 1, characterized in that: A support column (8) is fixedly connected to the middle of the top of the workbench (1), an extension plate (7) is fixedly connected to the top of the support column (8), and the upper end surface of the extension plate (7) is flush with the upper end surface of the fixture (6).

6. The needle-loading device for cylindrical roller bearings without outer rings according to claim 1, characterized in that: The bottom end of the pneumatic telescopic rod (15) is fixedly connected to a fixing seat (14), and the bottom end of the fixing seat (14) is fixedly connected to the top end of the workbench (1).

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