Joint bearing mounting device

Abstract

The utility model relates to the technical field of mine car frame assembly, specifically relates to a joint bearing installation device. The utility model provides a joint bearing installation device, including support crossbeam and oil cylinder, the both ends of support crossbeam are rotatably connected with the clamping hook, and are rotatably connected through the connecting plate between the both sides clamping hook, the bottom of oil cylinder is inserted with the connecting plate bottom fixedly, and the extension end of oil cylinder is connected with the top ring through screw thread, the bottom of top ring is connected with the joint bearing snap ring, the both sides welding of oil cylinder have cross bar, and the top of cross bar and joint bearing snap ring are hung through chain. The utility model passes through the structure optimization and the function integration, effectively solved the low efficiency, the unstable quality and the poor commonality etc. problem in the joint bearing installation of mine car, has the remarkable practical value.

Description

Technical Field

[0001] This utility model relates to the field of mining car frame assembly technology, specifically to a device for mounting joint bearings. Background Technology

[0002] Spherical plain bearings are sliding bearings that can bear both radial and axial loads. They are widely used in key components such as mine car bogies and suspension systems, and their installation quality directly affects the stability and safety of mine car operation. With the expansion of mining scale, mine car machinery is developing towards diversification and variety, significantly increasing the assembly complexity of frame components and placing higher demands on the precision and efficiency of assembly processes and tooling.

[0003] Currently, the installation of spherical plain bearings in mining cars still largely relies on manual operation: workers need to adjust the bearing position using simple tools such as crowbars and jacks, and then use impact tools such as sledgehammers to press it in. This method has the following drawbacks: First, manual operation is extremely labor-intensive, easily leading to worker fatigue; second, the bearing angle is prone to shifting during installation, requiring repeated manual correction, affecting installation efficiency and quality; third, it cannot meet the universal installation needs of spherical plain bearings of various sizes, requiring customized tooling for different bearing models, increasing enterprise costs. Therefore, there is an urgent need for a compact, easy-to-operate, and universal spherical plain bearing installation device. Utility Model Content

[0004] The purpose of this invention is to provide a device for installing spherical bearings, in order to solve the problems of low efficiency, unstable quality and poor versatility of manual installation of spherical bearings in mining cars.

[0005] The technical solution provided by this utility model is a device for installing spherical bearings, including a support beam and a hydraulic cylinder. The two ends of the support beam are rotatably connected with clamping hooks, and the clamping hooks on both sides are rotatably connected by a connecting plate.

[0006] The bottom of the cylinder is inserted and fixed to the bottom of the connecting plate, and the extended end of the cylinder is connected to a top ring by a thread, and a spherical bearing retainer is sleeved on the bottom of the top ring.

[0007] The cylinder has crossbars welded to both sides, and the crossbars are connected to the upper part of the spherical bearing retainer by a chain.

[0008] As a preferred embodiment of this utility model, a lifting ring is provided at the middle of the crossbeam of the support.

[0009] As a preferred embodiment of this utility model, the clamping hook has an outwardly bent L-shaped structure at the top and an inwardly bent barb-shaped structure at the bottom, with the connection points between the clamping hooks on both sides and the connecting plate located at the outward bend at the top.

[0010] As a preferred embodiment of this utility model, the number of connecting plates is two, and they are symmetrically arranged on both sides of the clamping hook.

[0011] As a preferred technical solution of this utility model, the spherical bearing retainer has an open structure, and its opening is provided with an outwardly extending connecting lug. The connecting lug is constrained and fastened by a bolt assembly.

[0012] As a preferred embodiment of this invention, the top of the crossbar is adjustablely connected to the chain via a hook structure.

[0013] As a preferred technical solution of this utility model, the connection between the clamping hook and the support beam and the connecting plate, as well as the connection between the oil cylinder and the bottom of the connecting plate, are replaceable by a detachable pin assembly.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1. Reduce labor intensity and improve installation efficiency: The top ring is pressed into the spherical bearing by the hydraulic cylinder, which replaces the traditional manual impact operation, greatly reducing the physical exertion of the operators and shortening the installation time of each operation.

[0016] 2. Ensure installation quality and verticality: The inside of the spherical plain bearing retainer is perpendicular to the bearing mating surface. After the device is in place, the verticality of the bearing installation can be directly guaranteed, avoiding manual adjustment and reducing installation errors.

[0017] 3. High versatility and adaptability to bearings of various sizes: The hydraulic cylinder extension stroke is adjustable, and the chain length is adjustable, which can adapt to the clamping requirements of spherical bearings of different diameters and thicknesses, reducing the tooling costs of enterprises.

[0018] 4. Flexible structure and convenient maintenance: The clamping hook, connecting plate and oil cylinder are all connected by pin shaft assembly for detachable connection. The spherical bearing retainer ring is opened and closed by bolt assembly. When parts are damaged, they can be quickly replaced, improving the maintenance efficiency of the device.

[0019] 5. High operational safety: The entire device is hoisted using lifting rings, and the self-locking structure of the clamping hooks (L-shaped and barbed design) prevents the bearings from slipping during installation, ensuring operational safety. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a joint bearing mounting device according to the present invention.

[0021] Figure 2 This is a front view of a spherical bearing mounting device according to the present invention.

[0022] Figure 3 This is a side view of a spherical bearing mounting device according to the present invention.

[0023] Figure 4 This is an assembly diagram of a spherical bearing mounting device according to the present invention.

[0024] As shown in the figure:

[0025] 1. Support beam; 2. Hydraulic cylinder; 3. Clamping hook; 4. Connecting plate; 5. Top ring; 6. Spherical bearing retaining ring; 7. Crossbar; 8. Chain; 9. Lifting ring; 10. Connecting lug; 11. Pin assembly. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] As per the instruction manual Figure 1-4 As shown, a device for mounting spherical bearings includes a support beam 1 and a hydraulic cylinder 2.

[0030] In this utility model, a lifting ring 9 is provided in the middle of the support beam 1. The two ends of the support beam 1 are rotatably connected to clamping hooks 3, and the clamping hooks 3 on both sides are rotatably connected by connecting plates 4. The upper part of the clamping hook 3 is an outwardly bent L-shaped structure, and the lower part is an inwardly bent barb-shaped structure. The connection between the clamping hooks 3 on both sides and the connecting plates 4 is located at the upper outward bend. There are two connecting plates 4, which are symmetrically arranged on both sides of the clamping hook 3.

[0031] In this utility model, the bottom of the oil cylinder 2 is inserted and fixed to the bottom of the connecting plate 4, and the extended end of the oil cylinder 2 is connected to the top ring 5 by thread. The bottom of the top ring 5 is fitted with a spherical bearing retainer 6. The spherical bearing retainer 6 has an open structure, and its opening is provided with an outwardly extending connecting ear 10. The connecting ear 10 is constrained and fastened by a bolt assembly.

[0032] In this utility model, crossbars 7 are welded on both sides of the cylinder 2. The crossbars 7 are suspended above the joint bearing retainer 6 by a chain 8. The top of the crossbars 7 is adjustablely connected to the chain 8 by a hook structure.

[0033] In this utility model, the connection between the clamping hook 3 and the support beam 1 and the connecting plate 4, as well as the connection between the oil cylinder 2 and the bottom of the connecting plate 4, are replaceable by a detachable pin assembly 11.

[0034] Workflow

[0035] 1. Positioning of the spherical bearing: Adjust the length of the chain 8 at the top of the crossbar 7 according to the size of the spherical bearing to be installed, and put the spherical bearing into the spherical bearing retainer 6. Fix the spherical bearing retainer 6 with bolt assembly to position the spherical bearing inside.

[0036] 2. Lifting and Fixing: The device is lifted to the position above the spherical bearing of the mine car frame using the lifting ring 9 in the middle of the support beam 1. The horizontal position of the device is adjusted, and as the support beam 1 rises, the clamping hooks 3 connected at both ends rotate inward toward the pin of the connecting plate 4, so that the bottom of the clamping hooks 3 opens and can be smoothly locked onto the car frame. As the spherical bearing retainer 6 contacts the car frame, the support beam 1 continues to descend, so that the clamping hooks 3 return to their original position. The barbed structure at the bottom automatically locks the outer edge of the retainer, achieving the initial fixation of the retainer.

[0037] 3. Press-in installation of the spherical plain bearing: Adjust the extension stroke of cylinder 2 according to the thickness of the spherical plain bearing (controlled by the hydraulic control system). Start cylinder 2, and its extended end pushes the top ring 5 downward. The top ring 5 engages with the spherical plain bearing retainer 6, pressing the spherical plain bearing into the frame mounting hole at a uniform speed. Since the inside of the spherical plain bearing retainer 6 is perpendicular to the bearing mating surface, the bearing remains vertical throughout the pressing process, requiring no manual intervention.

[0038] 4. Device reset: After the bearing is pressed in, the reverse operation cylinder 2 retracts, the top ring 5 disengages from the spherical bearing retainer 6, and the bottom of the clamping hook 3 opens up due to the rise of the bracket beam 1 to complete the installation.

[0039] Working principle

[0040] 1. Clamping and fixing: The L-shaped clamping hook 3 and the barbed structure cooperate to form a self-locking opening and closing clamping unit. It is connected to the pin of the hydraulic cylinder 2 through the connecting plate 4 to ensure that the clamping unit moves synchronously with the hydraulic cylinder 2 and stably fixes the joint bearing retainer 6.

[0041] 2. Vertical positioning: The opening structure of the spherical plain bearing retainer 6 is perpendicular to the bearing mating surface. With the length adjustment of the chain 8, the retainer is naturally aligned with the mounting hole after hoisting, ensuring the verticality of the bearing installation.

[0042] 3. Precise pressing: The hydraulic cylinder 2 serves as the power source, transmitting axial thrust to the retaining ring through the top ring 5, pushing the bearing to press into the frame at a uniform speed; the dual adjustable design of the extension stroke of the hydraulic cylinder 2 and the length of the chain 8 adapts to the installation requirements of bearings of different sizes, improving the versatility of the device.

[0043] 4. Ease of maintenance: All connecting parts (such as clamping hook 3 and connecting plate 4, oil cylinder 2 and connecting plate 4) are detachably connected by pin assembly 11, and the spherical bearing retainer 6 is opened and closed by bolt assembly. When parts are damaged, they can be quickly replaced, reducing downtime for maintenance.

[0044] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A mounting device for spherical plain bearings, comprising a support beam (1) and a hydraulic cylinder (2), characterized in that: The two ends of the support beam (1) are rotatably connected to clamping hooks (3), and the clamping hooks (3) on both sides are rotatably connected by a connecting plate (4). The bottom of the cylinder (2) is inserted and fixed to the bottom of the connecting plate (4), and the extended end of the cylinder (2) is connected to a top ring (5) by a thread. The bottom of the top ring (5) is fitted with a spherical bearing retainer (6). The cylinder (2) has crossbars (7) welded on both sides, and the crossbars (7) are suspended above the joint bearing retainer (6) by a chain (8).

2. The mounting device for a spherical plain bearing according to claim 1, characterized in that: A lifting ring (9) is provided in the middle of the crossbeam (1) of the support.

3. The mounting device for a spherical plain bearing according to claim 1, characterized in that: The clamping hook (3) has an outward-bending L-shaped structure at the top and an inward-bending barb-shaped structure at the bottom. The connection between the clamping hook (3) on both sides and the connecting plate (4) is located at the outward-bending part at the top.

4. The mounting device for a spherical plain bearing according to claim 1, characterized in that: The number of connecting plates (4) is two, and they are symmetrically arranged on both sides of the clamping hook (3).

5. A mounting device for a spherical plain bearing according to claim 1, characterized in that: The spherical bearing retainer (6) has an open structure with an outwardly extending connecting lug (10) at its opening. The connecting lug (10) is constrained and fastened by a bolt assembly.

6. The mounting device for a spherical plain bearing according to claim 1, characterized in that: The top of the crossbar (7) is adjustablely connected to the chain (8) via a hook structure.

7. A mounting device for a spherical plain bearing according to claim 1, characterized in that: The clamping hook (3) is connected to the support beam (1) and the connecting plate (4) at the connection points, and the cylinder (2) is connected to the bottom of the connecting plate (4) by a detachable pin assembly (11).

Images