Stable thrust wheel end cover casting

Abstract

The utility model discloses a stable thrust wheel end cover casting which comprises a shell, the outer surface of the shell is fixedly connected with a mounting frame, the outer surface of the shell is rotationally connected with a positioning ring, the outer surface of the shell is fixedly connected with a blocking frame, the outer surface of the blocking frame is fixedly connected with a sliding block, and the sliding block is fixedly connected with a bearing. The sliding block is in friction fit with the outer surface of the positioning ring, a sealing mechanism is fixedly connected to the outer surface of the positioning ring and comprises a limiting box, the limiting box is fixedly connected to the outer surface of the positioning ring, a sliding rod is slidably connected to an inner cavity of the limiting box, and an extrusion plate is fixedly connected to the end of the sliding rod; and the outer surface of the extrusion plate is fixedly connected with a sealing ring. The stable thrust wheel end cover casting disclosed by the utility model has the effect of reducing the friction force between thrust wheels.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the end cover of support wheel, especially to a stable end cover casting of support wheel. BACKGROUND

[0002] The end cover of support wheel is a key protective and functional auxiliary component of support wheel, and has important characteristics and functions in many aspects. The material thereof is usually high-strength cast iron or cast steel, which is formed through a fine casting process to ensure sufficient structural strength and stability. The design of the outer shape of the end cover closely fits the main body of the support wheel, and the precise dimensional tolerance thereof ensures good assembly, effectively preventing harmful substances such as dust, sand and water from entering the inside of the support wheel, thereby providing a reliable protective barrier for the internal precision components such as bearings and shafts, and greatly prolonging the service life and maintenance cycle of these components.

[0003] The utility model discloses a kind of excavator support wheel end cover castings structures for solving installation hole shrinkage, including end cover casting;The end cover casting is equipped with installation hole, the installation hole is through-hole, and the installation hole is internally installed sand core.The sand core is protruded at both ends from installation hole outside, and the protruding portion is conical.The utility model changes support wheel end cover casting structure, reduces installation hole position thermal section size, reduces the tendency of casting shrinkage, to solve the internal shrinkage problem of casting.

[0004] The following problems still exist in the above-mentioned application:

[0005] The friction between the end cover and the support wheel is relatively large. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of stable end cover castings of support wheel, to solve the technical problem that the friction between the end cover and the support wheel is relatively large.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] A kind of stable end cover casting of support wheel, including shell, the outer surface of the shell is fixedly connected with installation frame, the outer surface of the shell is rotatably connected with positioning ring, the outer surface of the shell is fixedly connected with barrier frame, the outer surface of the barrier frame is fixedly connected with sliding block, the outer surface of the sliding block and positioning ring is frictionally adapted, the outer surface of the positioning ring is fixedly connected with sealing mechanism, the sealing mechanism includes limiting box, the limiting box is fixedly connected to the outer surface of positioning ring, sliding rod is slidably connected in the inner chamber of the limiting box, the end of the sliding rod is fixedly connected with extrusion plate, the outer surface of the extrusion plate is fixedly connected with sealing ring.

[0009] The shell can be fixed at a specific position by the mounting frame, the positioning ring can be limited by the blocking frame and the sliding block, the shell can stably rotate at the inner cavity of the positioning ring, the sealing mechanism can increase the sealing between the positioning ring and the inner wall of the supporting wheel, thereby preventing dust from the outside from entering the inner cavity of the supporting wheel, the sliding rod can be limited by the limiting box, the sliding rod can stably slide in the inner cavity of the limiting box, the inner wall of the supporting wheel can be extruded by the extrusion plate and the sealing ring, thereby increasing the tightness of the connection between the positioning ring and the inner wall of the supporting wheel.

[0010] In a preferred scheme, the number of sliding blocks is several, and the several sliding blocks are uniformly distributed, the outer surface of the shell is fixedly connected with a fixed plate, the number of fixed plates is several, and the several fixed plates are uniformly distributed, the side close to the positioning ring of the fixed plate is fixedly connected with a sliding bar, the sliding bar is frictionally matched with the outer surface of the positioning ring, the outer surface of the shell is fixedly connected with a fixed block, the number of fixed blocks is several, and the several fixed blocks are uniformly distributed, the outer surface of the fixed block is fixedly connected with a limiting rod, the outer surface of the limiting rod is rotatably connected with a roller, and the roller is frictionally matched with the inner ring of the positioning ring.

[0011] The sliding block can be provided to stably slide between the blocking frame and the positioning ring, the sliding bar can be provided to cooperate with the sliding block, so that the positioning ring can be connected with the shell while the shell and the positioning ring stably rotate, the fixed block can be provided to connect the limiting rod with the shell, and the limiting rod can be provided to limit the roller, so that the roller can stably rotate on the outer surface of the limiting rod, and the shell can stably rotate in the inner ring of the positioning ring.

[0012] In a preferred scheme, the number of limiting boxes is several, and the several limiting boxes are uniformly distributed, the end of the sliding rod is fixedly connected with a spring, and the end of the spring is fixedly connected to the inner wall of the limiting box.

[0013] The spring can be provided to extrude the sliding rod, so that the sliding rod is subjected to an extrusion force towards the inner wall of the supporting wheel.

[0014] As can be seen from the above, compared with the prior art, the stable supporting wheel end cover casting has the following improvements and advantages:

[0015] Firstly, the shell can be fixed at a specific position by the mounting frame, and the positioning ring can be limited by the blocking frame and the sliding block, so that the shell can stably rotate at the inner cavity of the positioning ring.

[0016] Secondly, by setting the sealing mechanism, the sealing between the positioning ring and the inner wall of the supporting wheel can be increased, so that the dust outside is prevented from entering the inner cavity of the supporting wheel, by setting the limiting box, the sliding rod can be limited, so that the sliding rod can stably slide in the inner cavity of the limiting box, by setting the extrusion plate and the sealing ring, the inner wall of the supporting wheel can be extruded, so that the tightness of the connection between the positioning ring and the inner wall of the supporting wheel is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure schematic view of the stable supporting wheel end cover casting is provided in the utility model.

[0018] Figure 2 A structure top view of the stable supporting wheel end cover casting is provided in the utility model.

[0019] Figure 3 A section structure schematic view of the stable supporting wheel end cover casting is provided in the utility model.

[0020] Figure 4 A sealing mechanism schematic view of the stable supporting wheel end cover casting is provided in the utility model.

[0021] Figure 5 A sealing mechanism local structure schematic view of the stable supporting wheel end cover casting is provided in the utility model.

[0022] In the drawings: 1, shell; 2, mounting frame; 3, positioning ring; 4, barrier frame; 5, sliding block; 6, fixed plate; 7, sliding bar; 8, sealing mechanism; 9, fixed block; 10, limiting rod; 11, roller; 81, limiting box; 82, sliding rod; 83, spring; 84, extrusion plate; 85, sealing ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0025] The utility model discloses a stable type support wheel end cover casting mainly applies to the scene that the friction between support wheel is bigger.

[0026] Referring to Figure 1 Figure 5 A stable type support wheel end cover casting, including the shell 1, the outer surface fixedly connected with the installation frame 2 of shell 1, the outer surface rotationally connected with the locating ring 3 of shell 1, the outer surface fixedly connected with the barrier frame 4 of shell 1, the outer surface fixedly connected with the sliding block 5 of barrier frame 4, the outer surface frictional adaptation of sliding block 5 and locating ring 3, the outer surface fixedly connected with sealing mechanism 8 of locating ring 3, sealing mechanism 8 includes the limiting box 81, the limiting box 81 is fixedly connected in the outer surface of locating ring 3, the inner chamber of limiting box 81 is slidably connected with sliding rod 82, the end fixedly connected with extrusion plate 84 of sliding rod 82, the outer surface fixedly connected with sealing ring 85 of extrusion plate 84, by setting installation frame 2, can shell 1 be fixed in specific position, by setting barrier frame 4 and sliding block 5, can the locating ring 3 be limited, make shell 1 can produce stable rotation at the inner chamber of locating ring 3, by setting sealing mechanism 8, can increase the sealing between locating ring 3 and support wheel inner wall, to prevent the dust of outside from entering the inner chamber of support wheel, by setting limiting box 81, can the sliding rod 82 be limited, make sliding rod 82 can produce stable sliding in the inner chamber of limiting box 81, by setting extrusion plate 84 and sealing ring 85, can the inner wall of support wheel be extruded, to increase the tightness of locating ring 3 and support wheel inner wall connection.

[0027] Referring to Figure 1 、 Figure 2 and Figure 3In a preferred embodiment, the number of sliding blocks 5 is several, and the several sliding blocks 5 are uniformly distributed. By arranging the sliding blocks 5, stable sliding effect between the blocking frame 4 and the positioning ring 3 can be generated. The outer surface of the shell 1 is fixedly connected with fixing plates 6, the number of the fixing plates 6 is several, and the several fixing plates 6 are uniformly distributed. The side close to the positioning ring 3 of the fixing plate 6 is fixedly connected with sliding bars 7, the sliding bars 7 are frictionally matched with the outer surface of the positioning ring 3. By arranging the sliding bars 7, the positioning ring 3 can be connected with the shell 1, and at the same time, stable rotation between the shell 1 and the positioning ring 3 can be generated. The outer surface of the shell 1 is fixedly connected with fixing blocks 9, the number of the fixing blocks 9 is several, and the several fixing blocks 9 are uniformly distributed. The outer surface of the fixing block 9 is fixedly connected with limiting rods 10. By arranging the fixing blocks 9, the limiting rods 10 can be connected with the shell 1. The outer surface of the limiting rod 10 is rotatably connected with rollers 11, the rollers 11 are frictionally matched with the inner ring of the positioning ring 3. By arranging the limiting rods 10, the rollers 11 can be limited, and stable rotation of the rollers 11 on the outer surface of the limiting rod 10 can be generated. Thus, when the shell 1 rotates in the inner ring of the positioning ring 3, stable rotation of the shell 1 can be generated.

[0028] Referring to Figure 1 , Figure 4 and Figure 5 , in a preferred embodiment, the number of the limiting boxes 81 is several, and the several limiting boxes 81 are uniformly distributed. The end of the sliding rod 82 is fixedly connected with springs 83, and the end of the spring 83 is fixedly connected to the inner wall of the limiting box 81. By arranging the spring 83, the sliding rod 82 can be extruded, and the sliding rod 82 can be subjected to an extrusion force towards the inner wall of the supporting roller.

[0029] Working principle: when in use, the operator contacts the positioning ring 3 with the inner wall of the supporting roller. Under the influence of the elastic potential energy of the spring 83, the sliding rod 82 slides in the inner cavity of the limiting box 81, and then the extrusion plate 84 and the sealing ring 85 contact the inner wall of the supporting roller, so that the positioning ring 3 is in close contact with the inner wall of the supporting roller. When the supporting roller rotates, the positioning ring 3 also rotates, and under the limitation of the sliding block 5 and the sliding bar 7, stable rotation between the positioning ring 3 and the shell 1 can be generated.

[0030] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. The replacement can be a partial structure, device, method step replacement, or a complete technical solution. According to the technical solution and the utility model concept of the present application, equivalent replacement or change should be covered within the protection scope of the present application.

Claims

1. A stable type of the heavy wheel end cover casting, comprising an outer shell (1), the outer surface of the outer shell (1) is fixedly connected with a mounting frame (2), characterized in that, The outer surface of the shell (1) is rotatably connected with a positioning ring (3), the outer surface of the shell (1) is fixedly connected with a blocking frame (4), the outer surface of the blocking frame (4) is fixedly connected with a sliding block (5), the sliding block (5) is frictionally matched with the outer surface of the positioning ring (3), the outer surface of the positioning ring (3) is fixedly connected with a sealing mechanism (8), the sealing mechanism (8) comprises a limiting box (81), the limiting box (81) is fixedly connected to the outer surface of the positioning ring (3), a sliding rod (82) is slidably connected in the inner cavity of the limiting box (81), the end of the sliding rod (82) is fixedly connected with an extrusion plate (84), and the outer surface of the extrusion plate (84) is fixedly connected with a sealing ring (85).

2. The stabilised thrust wheel end cap casting according to claim 1, characterized in that The number of the sliding blocks (5) is several, and the several sliding blocks (5) are uniformly distributed.

3. The stabilizing type of the support wheel end cap casting according to claim 1, wherein, The outer surface of the shell (1) is fixedly connected with a fixed plate (6), the number of the fixed plate (6) is several, and the several fixed plates (6) are uniformly distributed.

4. The stabilised thrust wheel end cap casting of claim 3, wherein, The side of the fixed plate (6) close to the positioning ring (3) is fixedly connected with a sliding bar (7), and the sliding bar (7) is frictionally matched with the outer surface of the positioning ring (3).

5. The stabilizing type of the support wheel end cap casting according to claim 1, wherein, The outer surface of the shell (1) is fixedly connected with a fixed block (9), the number of the fixed block (9) is several, and the several fixed blocks (9) are uniformly distributed, and the outer surface of the fixed block (9) is fixedly connected with a limiting rod (10).

6. The stabilised thrust wheel end cap casting of claim 5, wherein, The outer surface of the limiting rod (10) is rotatably connected with a roller (11), and the roller (11) is frictionally matched with the inner ring of the positioning ring (3).

7. The stabilizing type of wheel end housing casting of claim 1 wherein, The number of the limiting boxes (81) is several, and the several limiting boxes (81) are uniformly distributed, the end of the sliding rod (82) is fixedly connected with a spring (83), and the end of the spring (83) is fixedly connected to the inner wall of the limiting box (81).

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