Pulley axle mounting device

Abstract

The present application relates to the field of crawler cranes, and relates to a pulley shaft mounting device, comprising a base, fixed seats and movable seats arranged on both sides of the base respectively, the movable seat being movably mounted on the base, a first pushing sliding plate being slidingly mounted on the fixed seat, a top sleeve for supporting a sheave block support being inserted into the sheave block support from a hole on one side of the sheave block support being mounted on the first pushing sliding plate, a second pushing sliding plate being slidingly mounted on the movable seat, a first oil cylinder with an extension part capable of pushing the pulley shaft to move being mounted on the second pushing sliding plate, so as to drive the pulley shaft to be inserted into the top sleeve from a hole on the other side of the sheave block support. The pulley shaft mounting device can mount the pulley shaft, reduces the installation strength, is high in efficiency, and ensures the installation quality.

Description

Technical Field

[0001] This invention relates to the field of crawler cranes, and more specifically, to a pulley shaft mounting device. Background Technology

[0002] Tracked cranes are one of the most important pieces of machinery in the engineering crane industry. Their powerful lifting capacity and stability while traveling under load give them an important position in the crane industry. In recent years, major national nuclear power and wind power projects have all used ultra-large tonnage tracked cranes to complete the lifting operations. As a directly related component in the lifting operation of tracked cranes, the pulley block directly affects the quality and efficiency of the lifting.

[0003] Currently, the hammering method is used, which is labor-intensive and inefficient, and the installation quality is difficult to guarantee during the installation process.

[0004] In view of this, there is a need to provide a pulley shaft mounting device to solve or overcome the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a pulley shaft mounting device, which can install pulley shafts, reduce the installation intensity, increase efficiency, and ensure the installation quality.

[0006] To solve the above-mentioned technical problems, the present invention provides a pulley shaft mounting device, including a base, a fixed seat and a movable seat respectively disposed on both sides of the base, the movable seat being movably mounted on the base, a first pushing slide plate being slidably mounted on the fixed seat, the first pushing slide plate being equipped with a top sleeve for inserting into the pulley block support from a hole on one side of the pulley block support, and a second pushing slide plate being slidably mounted on the movable seat, the second pushing slide plate being equipped with a first hydraulic cylinder whose telescopic portion is capable of pushing the pulley shaft to move, so as to drive the pulley shaft to be inserted into the top sleeve from the hole on the other side of the pulley block support.

[0007] Preferably, the first push plate is connected to the first lifting mechanism so that the first push plate can slide along the height direction of the fixed seat by the lifting of the first lifting mechanism, and the second push plate is connected to the second lifting mechanism so that the second push plate can slide along the height direction of the movable seat by the lifting of the second lifting mechanism.

[0008] Preferably, the first lifting mechanism and the second lifting mechanism lift synchronously.

[0009] Preferably, a second hydraulic cylinder is provided inside the base. The second hydraulic cylinder is connected to the movable seat through a hydraulic cylinder support, so that the movable seat can be moved along the guide rail under the drive of the second hydraulic cylinder.

[0010] Preferably, the end of the guide rail is provided with a limiting component to prevent the movable seat from sliding out of the guide rail.

[0011] Preferably, the guide rail is provided with a locking component on its periphery for connecting and fixing the guide rail and the base.

[0012] Preferably, the base is further equipped with a top sleeve replacement assembly, which is used to cooperate in installing different types of pulley block brackets.

[0013] Preferably, the pulley axle mounting device further includes a hoisting assembly for hoisting the pulley block bracket and the pulley axle.

[0014] Preferably, the mounting bracket is mounted on the base by fasteners.

[0015] Preferably, a control unit is provided on the base, and the control unit is signal connected to the first lifting mechanism, the second lifting mechanism, the first hydraulic cylinder, and the second hydraulic cylinder.

[0016] The beneficial effects of the present invention through the above technical solution are as follows:

[0017] The pulley shaft installation device of the present invention includes a fixed base and a movable base. A first pushing slide plate is slidably installed on the fixed base, and a top sleeve is installed on the first pushing slide plate. The top sleeve is inserted into a hole on one side of the pulley block bracket. A second pushing slide plate is slidably installed on the movable base, and a first hydraulic cylinder is installed on the second pushing slide plate. The telescopic part of the first hydraulic cylinder abuts against the pulley shaft. Under the telescopic action of the first hydraulic cylinder, the pulley shaft can be moved from the hole on one side of the pulley block bracket to the top sleeve on the other side, thereby achieving automatic installation, reducing installation intensity, improving production efficiency, and ensuring installation quality.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the pulley shaft mounting device of the present invention;

[0020] Figure 2 This is a schematic diagram of the fixing seat of the pulley shaft mounting device of the present invention;

[0021] Figure 3 This is a schematic diagram of the movable seat of the pulley shaft mounting device of the present invention;

[0022] Figure 4 This is a schematic diagram of the cylinder support of the movable seat of the pulley shaft mounting device of the present invention;

[0023] Figure 5 This is a schematic diagram of the guide rail of the pulley shaft mounting device of the present invention.

[0024] Explanation of reference numerals in the attached figures

[0025] 1. Base; 2. Fixed seat; 3. Movable seat; 4. First pushing slide plate; 5. Top sleeve; 6. Second pushing slide plate; 7. First hydraulic cylinder; 8. Pulley shaft; 9. Pulley block bracket; 10. First lifting mechanism; 11. Second lifting mechanism; 12. Hydraulic cylinder support; 13. Guide rail; 14. Limiting component; 15. Top sleeve replacement component; 16. Control unit. Detailed Implementation

[0026] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] First, it should be noted that some directional terms used in the following description to clearly illustrate the technical solutions of the present invention are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] This invention provides a pulley shaft mounting device, see below. Figures 1 to 5As shown, the system includes a base 1, a fixed seat 2 and a movable seat 3 respectively disposed on both sides of the base 1. The movable seat 3 is movably mounted on the base 1. A first push plate 4 is slidably mounted on the fixed seat 2. A top sleeve 5 for inserting into the pulley block bracket 9 from one side of the pulley block bracket 9 is mounted on the first push plate 4. A second push plate 6 is slidably mounted on the movable seat 3. A first hydraulic cylinder 7 with its telescopic part is mounted on the second push plate 6, which can push the pulley shaft 8 to move so as to drive the pulley shaft 8 to be inserted into the top sleeve 5 from the other side hole of the pulley block bracket 9.

[0031] It should be noted that the pulley shaft mounting device of the present invention includes a base 1, which is a box-shaped structure welded from high-strength plates. It possesses sufficient strength and rigidity to support the weight of the main structure. Furthermore, being welded, it is easy to move and relocate, requiring no foundation construction during installation and offering flexible movement with low site requirements. Fixed seats 2 and movable seats 3 are provided on both sides of the base 1. Preferably, the fixed seats 2 are mounted on the base 1 using fasteners, typically bolts or screws. Alternatively, welding or other methods can be used to achieve a stable connection. A first jacking slide plate 4 is slidably mounted on the fixed base 2, and a top sleeve 5 is mounted on the first jacking slide plate 4. The top sleeve 5 serves as a transition tool to ensure the stability of the pulley block bracket 9 with different end face shapes during the stress process. Here, the top sleeve 5 can be snapped into the slot between the first jacking slide plate 4 and the fixed base 2 for easy switching during installation. Alternatively, several mounting holes can be opened on the first jacking slide plate 4, and the top sleeve 5 can be fixed to the first jacking slide plate 4 with bolts. As the first jacking slide plate 4 slides on the fixed base 2, the top sleeve 5 is inserted into the hole on one side of the pulley block bracket 9. The movable seat 3 is movably mounted on the base 1. Specifically, the movable seat 3 is made of steel because it has higher strength and resistance to deformation, ensuring stability during movement. Guide rails 13 are provided on the base 1. There can be two or more guide rails 13, and the positions of all guide rails 13 need to be parallel to improve the accuracy of subsequent installation of the pulley shaft 8. Specifically, a groove can be formed in the lower part of the movable seat 3, and the sliding purpose is achieved through the cooperation between the groove and the protrusion of the guide rail 13. Alternatively, a protrusion can be provided in the lower part of the movable seat 3. The guide rail 13 has a groove inside. The sliding purpose is achieved by the cooperation between the protrusion on the movable seat 3 and the groove inside the movable seat 3. The second push slide plate 6 is slidably installed on the movable seat 3. The telescopic part of the first oil cylinder 7 is installed on the second push slide plate 6. Under the telescopic action of the telescopic part of the first oil cylinder 7, the pulley shaft 8 can be driven to be inserted into the top sleeve 5 from the hole on the other side of the pulley block bracket 9, so as to achieve the purpose of installing the pulley shaft 8. The telescopic action of the first oil cylinder 7 can meet the one-time press-fit of different pulley shafts 8 without the need to add a push rod between the first oil cylinder 7 and the pulley shaft 8, which is convenient and quick.

[0032] The specific working process is as follows: First, select the corresponding top sleeve 5 according to the cross-sectional shape of the pulley block bracket 9, and then hoist the top sleeve 5 onto the first jacking slide plate 4. Second, according to the length of the pulley block bracket 9, move the movable seat 3 to a suitable position to ensure that the pulley shaft 8 can be smoothly aligned with the hole. Third, hoist the pulley block bracket 9 onto the base 1 and move it step by step to insert the top sleeve 5 into the hole on one side of the pulley block bracket 9. Then, simultaneously adjust the height of the fixed seat 2 and the first jacking slide plate 4 so that the center height of the top sleeve 5 and the center height of the first hydraulic cylinder 7 are aligned with the pulley block bracket. The nine holes are aligned at the same height. When observing the rear of the fixed base 2, the complete pulley block bracket 9 shaft holes can be seen. Then, the pulley shaft 8 is hoisted to the same height as the first pushing slide plate 4, ensuring that the front end of the pulley shaft 8 is aligned with the hole of the pulley block bracket 9 and the rear end is aligned with the height of the first hydraulic cylinder 7. Finally, the first hydraulic cylinder 7 is activated. Through the extension and retraction of the first hydraulic cylinder 7, the pulley shaft 8 is pushed all the way into the top sleeve 5 on the other side of the pulley block bracket 9. The movement stops, the first hydraulic cylinder 7 retracts, and the assembled pulley block bracket 9 is moved away for the next installation.

[0033] Furthermore, the first jacking slide plate 4 is connected to the first lifting mechanism 10, so that the first jacking slide plate 4 can slide along the height direction of the fixed seat 2 through the lifting and lowering of the first lifting mechanism 10. The second jacking slide plate 6 is connected to the second lifting mechanism 11, so that the second jacking slide plate 6 can slide along the height direction of the movable seat 3 through the lifting and lowering of the second lifting mechanism 11. It should be noted that the first lifting mechanism 10 is generally a hydraulic cylinder, fixed on one side of the fixed seat 2. It is connected to the first jacking slide plate 4 through a connecting support. Under hydraulic pressure, it can drive the top sleeve 5 on the first jacking slide plate 4 to move up and down along the height direction. In order to adapt to the installation of pulley block brackets 9 of different specifications and ensure the stability of lifting, the first lifting mechanism 10 can also be set on both sides of the fixed seat 2. In this way, it can ensure that the first jacking slide plate 4 can be evenly stressed during the up and down movement, and improve the installation accuracy. The second lifting mechanism 11 is connected to the movable seat 3, and its function is the same as that of the first lifting mechanism 10. The first lifting mechanism 10 is similar and will not be described further. It should be noted that the first lifting mechanism 10 and the second lifting mechanism 11 lift synchronously. During the installation of the pulley shaft 8, in order to ensure the accuracy of the installation, the center of the top sleeve 5, the center of the first oil cylinder 7 and the center of the hole of the pulley block bracket 9 need to be at the same height. This ensures that the pulley shaft 8 can be accurately and quickly inserted into the hole of the pulley block bracket 9 to achieve the assembly function. The side-mounted first lifting mechanism 10 and the second lifting mechanism 11 can avoid the risk of collision between the pulley shaft 8 and the other parts during the hoisting process, reducing the danger in the operation process.

[0034] Furthermore, a second hydraulic cylinder is installed inside the base 1. The second hydraulic cylinder is connected to the movable seat 3 via the hydraulic cylinder support 12, so that the movable seat 3 can be moved along the guide rail 13 under the drive of the second hydraulic cylinder. It should be noted that the second hydraulic cylinder is installed inside the base 1, and its telescopic part is connected to the movable seat 3 via the hydraulic cylinder support 12. The telescopic action of the second hydraulic cylinder can drive the movable seat 3 to slide within the guide rail 13, which meets the installation requirements of different types of pulley block brackets 9. The second hydraulic cylinder is located inside the base 1, which reduces the external size of the pulley shaft mounting device and saves space. In addition, the use of the second hydraulic cylinder instead of the traditional method of adding a push rod reduces safety risks. The second hydraulic cylinder and the first hydraulic cylinder 7 work together to accommodate more specifications of pulley shafts 8 and meet different production requirements.

[0035] Furthermore, a limiting component 14 is provided at the end of the guide rail 13 to prevent the movable seat 3 from sliding out of the guide rail 13. It should be noted that the limiting component 14 is provided at one end of the guide rail 13. The limiting component 14 can be a limiting block, which is fixed to the end of the guide rail 13 by screws. On the one hand, it restricts the movable seat 13 from sliding out of the guide rail 13, thus preventing safety risks. On the other hand, the limiting block can be quickly disassembled, which is convenient for cleaning impurities and foreign objects between the movable seat 3 and the guide rail 13, and timely maintenance of the guide rail 13. It should be noted that a locking component is provided on the periphery of the guide rail 13 to connect and fix the guide rail 13 and the base 1. The locking component is a groove structure formed by the plane of the guide rail 13 and the base 1. As the running time increases, when the movable seat 3 moves along the guide rail 13, it will produce a certain amount of shaking, which will directly affect the installation accuracy of the pulley shaft 8. The locking component can securely install the guide rail 13 on the base 1 and prevent the movable seat 3 from tipping over due to the shaking of the guide rail 13.

[0036] Furthermore, a top sleeve replacement assembly 15 is also installed on the base 1. The top sleeve replacement assembly 15 is used to install different types of pulley block brackets 9. It should be noted that a tooling positioning area is provided on the base 1 near the fixed seat 2. The top sleeve replacement assembly 15 is placed in the tooling positioning area. The top sleeve replacement assembly 15 is usually a cylindrical sleeve and can hold different types of top sleeves 5. Specifically, the ends of the pulley block brackets 9 usually have flat surfaces, ear plates, supports, etc. Different types of pulley block brackets 9 require different types of top sleeves 5. By placing the common types of top sleeves 5 in the top sleeve replacement assembly 15, the appropriate top sleeve 5 can be selected according to the work requirements, realizing convenient and quick switching of top sleeves 5, saving time and improving production efficiency. The pulley shaft installation device also includes a lifting assembly for hoisting the pulley block brackets 9 and pulley shafts 8. The lifting assembly is equipped with an intelligent auxiliary cantilever mechanism, which can automatically lift and lower to meet the weight requirements of different pulley block brackets 9 and pulley shafts 8 currently in use. Its working radius is adjustable, and the hoisting range is large, which can meet different production needs.

[0037] Furthermore, a control unit 16 is provided on the base 1, and the control unit 16 is connected to the first lifting mechanism 10, the second lifting mechanism 11, the first hydraulic cylinder 7, and the second hydraulic cylinder via signal connection. Specifically, during operation, the control unit 16 controls the extension and retraction of the first lifting mechanism 10 via electrical signals, thereby driving the first jacking slide plate 4 to slide along the height direction on the fixed seat 2; the control unit 16 controls the extension and retraction of the second lifting mechanism 10 via electrical signals, thereby driving the second jacking slide plate 6 to slide along the height direction on the movable seat 3; the control unit 16 controls the extension and retraction of the first hydraulic cylinder 7 via electrical signals, thereby driving the pulley shaft 8 to pass through the hole on one side of the pulley block bracket 9 to the top sleeve 5 on the other side; the control unit 16 controls the extension and retraction of the second hydraulic cylinder via electrical signals, driving the movable seat 3 to slide on the guide rail 13, so as to meet the installation requirements of pulley block brackets 9 and pulley shafts 8 of different lengths.

[0038] As can be seen from the above description, the pulley shaft mounting device of the present invention includes a base 1, with a fixed seat 2 and a movable seat 3 arranged on both sides of the base 1. The fixed seat 2 is mounted on the base 1 by bolts. A first pushing slide plate 4 is slidably mounted on the fixed seat 2. A first lifting mechanism 10 is connected to one side of the first pushing slide plate 4. A top sleeve 5 is mounted on the first pushing slide plate 4 and is inserted into a hole on one side of the pulley block bracket 9. A second hydraulic cylinder is installed inside the base 1. The telescopic part of the second hydraulic cylinder is connected to the movable seat 3 through a hydraulic cylinder support 12. The movable seat 3 is located in... The guide rail 13 on the base 1 slides within the guide rail 13. The end of the guide rail 13 is provided with a limiting component that restricts the movable seat 3 from sliding out of the guide rail 13. The periphery of the guide rail 13 is provided with a locking component for connecting and fixing the guide rail 13 and the base 1. A second push plate 6 is slidably installed on the movable seat 3. A second lifting mechanism 11 is connected to one side of the second push plate 6. The telescopic part of the first hydraulic cylinder 7 is installed on the second push plate 6. Under the telescopic action of the telescopic part of the first hydraulic cylinder 7, the pulley shaft 8 can be driven to be inserted into the top sleeve 5 from the hole on the other side of the pulley block bracket 9.

[0039] During installation, firstly, select the corresponding top sleeve 5 according to the cross-sectional shape of the pulley block bracket 9, and then hoist the top sleeve 5 onto the first jacking slide plate 4. Secondly, according to the length of the pulley block bracket 9, move the movable seat 3 to a suitable position to ensure that the pulley shaft 8 can be smoothly aligned with the hole. Thirdly, hoist the pulley block bracket 9 onto the base 1 and move it step by step to insert the top sleeve 5 into the hole on one side of the pulley block bracket 9. Then, through the lifting action of the first lifting mechanism 10 and the second lifting mechanism 11, the center of the top sleeve 5 and the center of the first hydraulic cylinder 7 are aligned with the pulley block bracket. The nine holes are aligned at the same height. When observing the rear of the fixed base 2, the complete pulley block bracket 9 shaft holes can be seen. Then, the pulley shaft 8 is hoisted to the same height as the first pushing slide plate 4, ensuring that the front end of the pulley shaft 8 is aligned with the hole on the other side of the pulley block bracket 9, and the rear end is aligned with the height of the first hydraulic cylinder 7. Finally, the first hydraulic cylinder 7 is activated. Through the extension and retraction of the first hydraulic cylinder 7, the pulley shaft 8 is pushed all the way into the top sleeve 5 on the other side of the pulley block bracket 9. The movement stops, the first hydraulic cylinder 7 retracts, and the assembled pulley block bracket 9 is moved away for the next installation.

[0040] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0041] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0042] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A pulley shaft mounting device, characterized in that, The system includes a base (1), a fixed seat (2) and a movable seat (3) respectively disposed on both sides of the base (1). The movable seat (3) is movably mounted on the base (1). A first push plate (4) is slidably mounted on the fixed seat (2). A top sleeve (5) for inserting into and supporting the pulley group bracket (9) from a hole on one side of the pulley group bracket (9) is mounted on the first push plate (4). A second push plate (6) is slidably mounted on the movable seat (3). A first hydraulic cylinder (7) with a telescopic portion is mounted on the second push plate (6) to push the pulley shaft (8) to move, so as to drive the pulley shaft (8) to be inserted into the top sleeve (5) from the hole on the other side of the pulley group bracket (9). An observation hole is formed on the first push plate (4) for observing the center of the top sleeve (5) and the center of the first hydraulic cylinder (7). The height and the center height of the hole of the pulley bracket (9) are consistent and used to install the top sleeve (5); the first push plate (4) is connected to the first lifting mechanism (10) so that the first push plate (4) can slide along the height direction of the fixed seat (2) by the lifting of the first lifting mechanism (10); the second push plate (6) is connected to the second lifting mechanism (11) so that the second push plate (6) can slide along the height direction of the moving seat (3) by the lifting of the second lifting mechanism (11); the first lifting mechanism (10) and the second lifting mechanism (11) lift synchronously; the base (1) is provided with a second oil cylinder inside; the second oil cylinder is connected to the moving seat (3) through the oil cylinder support (12) so that the moving seat (3) can be moved along the guide rail (13) under the drive of the second oil cylinder.

2. The pulley shaft mounting device according to claim 1, characterized in that, The end of the guide rail (13) is provided with a limiting component (14) that restricts the movable seat (3) from sliding out of the guide rail (13).

3. The pulley shaft mounting device according to claim 2, characterized in that, The guide rail (13) is provided with a locking component on its periphery for connecting and fixing the guide rail (13) and the base (1).

4. The pulley shaft mounting device according to claim 1, characterized in that, The base (1) is also equipped with a top sleeve replacement assembly (15), which is used to cooperate in installing different types of pulley block brackets (9).

5. The pulley shaft mounting device according to claim 1, characterized in that, The pulley shaft mounting device also includes a hoisting assembly for hoisting the pulley block bracket (9) and the pulley shaft (8).

6. The pulley shaft mounting device according to any one of claims 1 to 5, characterized in that, The mounting bracket (2) is mounted on the base (1) by fasteners.

7. The pulley shaft mounting device according to claim 6, characterized in that, The base (1) is provided with a control unit (16), which is connected to the first lifting mechanism (10), the second lifting mechanism (11), the first oil cylinder (7) and the second oil cylinder.

Images