Continuous beam swivel spherical hinge device

Abstract

The utility model relates to a continuous beam swivel spherical hinge device, which belongs to the technical field of bridge construction, and comprises an upper spherical hinge, a lower spherical hinge, a rotating ball and a positioning shaft, the rotating ball is connected with the lower spherical hinge, one side of the lower spherical hinge facing the upper spherical hinge is provided with an accommodating groove, the rotating ball is arranged in the accommodating groove, and the rotating ball protrudes out of the accommodating groove and is in rolling connection with the upper spherical hinge; the rotating ball is arranged between the upper spherical hinge and the lower spherical hinge, the positioning shaft is arranged on the lower spherical hinge and extends out of the lower spherical hinge to be connected with the upper spherical hinge, and the positioning shaft is located on the same central axis of the lower spherical hinge and the upper spherical hinge. In order to prevent the upper spherical hinge from intensively acting on the lower spherical hinge, the rotating shaft is arranged to enable the upper spherical hinge to uniformly act on the lower spherical hinge, so that the friction force in the rotating process is uniformly distributed, the rotation is smooth, and the friction force in the transferring process is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge construction technical field, concretely relates to a continuous beam swivel spherical hinge device. BACKGROUND

[0002] In bridge construction, swivel construction is a kind of efficient, economic construction method, especially in the bridge construction in the traffic busy area along railway and the like plays a vital role.This method is to make bridge structure in advance at the position of non-design axis, then utilizes swivel technology to accurately move bridge to the position of design axis, to complete bridge construction under the premise of not interfering with the operation of existing traffic line.However, in the swivel construction process, especially when continuous beam swivels, the huge friction force generated by the relative rotation of upper and lower rotating discs of spherical hinge becomes the key factor restricting construction efficiency and safety.

[0003] As the core component of swivel construction, spherical hinge is usually assembled by upper and lower rotating discs, and its rotating performance directly affects the smooth progress of swivel construction.In the process of continuous beam swivel, the friction between upper and lower rotating discs not only requires the operator to provide huge traction force through traction equipment, increases construction difficulty and safety risk, but also leads to the extension of construction period.Therefore, reducing the friction force in the rotating process of spherical hinge becomes an important issue to improve the efficiency and safety of swivel construction.

[0004] At present, in order to reduce the friction force of spherical hinge, the existing technology generally adopts the strategy of setting friction-reducing material between upper and lower rotating discs.However, this method has many deficiencies: on the one hand, the installation and debugging process of friction-reducing material is complicated, time-consuming and laborious, and increases construction cost;on the other hand, the friction-reducing effect is limited, and it is difficult to fundamentally solve the problem of excessive friction force.

[0005] Therefore, there is an urgent need for a continuous beam swivel spherical hinge device that can effectively reduce the rotating friction of spherical hinge. UTILITY MODEL CONTENT

[0006] In order to solve the above problems existing in the prior art, the utility model provides a continuous beam swivel spherical hinge device, which solves the problem of large friction force generated by the rotation of spherical hinge when the existing continuous beam utilizes spherical hinge swivel.

[0007] The purpose of the utility model can be realized by the following technical solutions:

[0008] A continuous beam swivel spherical hinge device, comprising an upper spherical hinge, a lower spherical hinge, a rotating ball and a positioning shaft, the rotating ball is connected with the lower spherical hinge, one side of the lower spherical hinge facing the upper spherical hinge is provided with a containing groove, the rotating ball is arranged in the containing groove, and the rotating ball protrudes from the containing groove and is rolling connected with the upper spherical hinge;

[0009] The positioning shaft is arranged at the lower spherical hinge and extends out of the lower spherical hinge to connect with the upper spherical hinge, and the positioning shaft is located at the same central axis of the lower spherical hinge and the upper spherical hinge.

[0010] Preferably, the projection of the upper spherical hinge falls into the lower spherical hinge in the same plane.

[0011] Preferably, the part where the rotating ball is located in the accommodating groove is a rotating part, and the volume ratio of the rotating part to the rotating ball is at least 4:5.

[0012] Preferably, the number of the rotating balls is several.

[0013] Preferably, the rotating ball and the contact part of the lower spherical hinge and the upper spherical hinge are both provided with a protective layer, and the protective layer comprises a wear-resistant layer and an adhesive layer; the wear-resistant layer is connected with the rotating ball, and the adhesive layer is located between the rotating ball and the wear-resistant layer.

[0014] Preferably, the shape of the accommodating groove is a copy of the rotating ball.

[0015] Preferably, the distance between the accommodating groove and the rotating ball is less than 1mm.

[0016] The beneficial effects of the utility model are as follows:

[0017] The application sets the rotating ball between the upper spherical hinge and the lower spherical hinge, changes the sliding friction of transmission into the rolling friction of the upper spherical hinge and the lower spherical hinge, secondly, in order to avoid the concentrated effect of the upper spherical hinge on the lower spherical hinge, the rotating shaft is arranged to make the upper spherical hinge uniformly act on the lower spherical hinge, so that the friction force distribution in the rotating process is uniform, the rotating body is smooth, and the friction force in the rotating process is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to facilitate the understanding of those skilled in the art, the utility model is further described below in combination with the drawings.

[0019] Fig. 1 The ball hinge device installation structure schematic view provided in an embodiment of the utility model is shown in the figure.

[0020] Fig. 2 The installation structure schematic view of the upper spherical hinge and the lower spherical hinge provided in an embodiment of the utility model is shown in the figure.

[0021] Fig. 3 The installation structure schematic view of the rotating ball provided in an embodiment of the utility model is shown in the figure.

[0022] Legend: 100, upper spherical hinge; 200, lower spherical hinge; 300, rotating ball; 400, positioning shaft; 501, wear-resistant layer; 502, adhesive layer; 600, accommodating groove. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] like Figs. 1-3 As shown, a continuous beam rotating ball joint device includes an upper ball joint 100, a lower ball joint 200, a rotating ball 300, and a positioning shaft 400. The rotating ball 300 is connected to the lower ball joint 200. The lower ball joint 200 has a receiving groove 600 on the side facing the upper ball joint 100. The rotating ball 300 is disposed in the receiving groove 600 and protrudes from the receiving groove 600 to be in rolling connection with the upper ball joint 100. The positioning shaft 400 is disposed in the lower ball joint 200 and extends out to connect the lower ball joint 200 and the upper ball joint 100. The positioning shaft 400 is located on the same central axis as the lower ball joint 200 and the upper ball joint 100.

[0025] The top of the upper ball joint 100 is connected to the continuous beam and bears the weight of the continuous beam. During the rotation, the upper ball joint 100 and the lower ball joint 200 form a rolling contact through the rotating ball 300. Since the upper ball joint 100 is on a point or a very small area of ​​the rotating ball 300, the area of ​​the rolling contact is smaller than that of the sliding contact, thereby reducing the adhesion between the two and reducing the friction, which can reduce the sliding friction generated during the rotation.

[0026] Since the upper ball joint 100 and the lower ball joint 200 are connected by a rotating ball 300, when the upper ball joint 100 bears the weight of the continuous beam and rotates with the lower ball joint 200, if no restraint is added between them, the beam is prone to shift during transport. This results in an imbalance of forces on the lower ball joint 200 and the upper ball joint 100, which is particularly prone to severe compression in one area, increased friction, and increased difficulty in rotation. Therefore, this application sets a positioning shaft 400 at a position where the central axes of the lower ball joint 200 and the upper ball joint 100 coincide. The central axis of the positioning shaft 400 also coincides with the center line of the upper ball joint 100 and the lower ball joint 200. Thus, when the continuous beam is transported, the upper ball joint 100 rotates relative to the lower ball joint 200 with the rotation axis as the center, thereby avoiding the situation where the upper ball joint 100 shifts to one side and acts on the lower ball joint 200, increasing the friction.

[0027] In the process of continuous beam rotation, the upper spherical hinge 100 and the lower spherical hinge 200 are in contact through the rotating ball 300. The rotation process of the upper spherical hinge 100 is transmitted to the rotation of the rotating ball 300 in the accommodating groove 600, so that the sliding friction between the upper and lower spherical hinges 200 is weakened to the rotation friction of the rotating ball 300 in the accommodating groove 600. The change in friction property can greatly reduce the friction between the upper and lower spherical hinges 200.

[0028] In summary, the application sets the rotating ball 300 between the upper spherical hinge 100 and the lower spherical hinge 200, changes the sliding friction of the transmission to the rolling friction of the upper spherical hinge 100 and the lower spherical hinge 200. Secondly, in order to avoid the upper spherical hinge 100 from concentrating on the lower spherical hinge 200, the rotating shaft is arranged to make the upper spherical hinge 100 act uniformly on the lower spherical hinge 200, so that the friction of the rotation process is evenly distributed, the rotation is smooth, and the friction of the rotation process is further reduced.

[0029] In an embodiment, the orthographic projection of the upper spherical hinge 100 falls into the lower spherical hinge 200 in the same plane, that is, the lower spherical hinge 200 wraps the upper spherical hinge 100, which increases the contact area and interaction force between the two, thereby improving the stability of the overall structure. This wrapping relationship helps to prevent the upper spherical hinge 100 from shaking or deviating during rotation, ensuring the smoothness and accuracy of rotation; since the upper spherical hinge 100 is completely wrapped by the lower spherical hinge 200, the rotation path is limited to a certain range. This limitation helps to reduce the additional friction and wear caused by an uncertain rotation path, while improving the efficiency and accuracy of rotation.

[0030] In an embodiment, the position of the rotating ball 300 in the accommodating groove 600 is the rotating part, and the volume ratio of the rotating part to the volume of the rotating ball 300 is at least 4:5. In this way, the volume of the rotating part can be relatively large, providing more stable support for the rotating ball 300, and more effectively dispersing and bearing the force and torque from the rotating ball 300, thereby improving the carrying capacity of the entire upper spherical hinge 100 and rotating ball 300 combination.

[0031] In an embodiment, the number of rotating balls 300 is several. When several rotating balls 300 are used, these balls can collectively bear the load from the upper spherical hinge 100 and evenly distribute the friction force to each ball. This uniform distribution can prevent one or more balls from being damaged due to excessive friction, thereby improving the stability and durability of the entire system. In addition, using multiple rotating balls 300 as components of the upper spherical hinge 100 ensures that even if one ball fails or is damaged, the other balls can still work, thereby ensuring the reliability of the entire system.

[0032] In an embodiment, the rotating ball 300 and the contact part of the lower ball hinge 200 and the upper ball hinge 100 are provided with a protective layer, which includes a wear-resistant layer 501 and a bonding layer 502; the wear-resistant layer 501 is connected with the rotating ball 300, and the bonding layer 502 is located between the rotating ball 300 and the wear-resistant layer 501; the wear-resistant layer 501 is directly in contact with the rotating ball 300, and is usually made of a material with high hardness and excellent wear resistance, which can effectively resist friction and wear generated during rotation, and help to prolong the service life of the rotating ball 300 and the upper and lower ball hinges 200; the bonding layer 502 is located between the support layer and the wear-resistant layer 501, and serves to connect the two, which can ensure that the wear-resistant layer 501 is tightly bonded and prevent peeling or delamination during use.

[0033] In an embodiment, the accommodating groove 600 is shaped like the rotating ball 300, and the shaped accommodating groove 600 can closely fit the rotating ball 300, reducing the gap between the two, thereby improving the stability during rotation; the contact area between the shaped accommodating groove 600 and the rotating ball 300 is larger and more evenly distributed, which helps to reduce the frictional resistance during rotation.

[0034] In an embodiment, the distance between the accommodating groove 600 and the rotating ball 300 is less than 1 mm; when the gap between the accommodating groove 600 and the rotating ball 300 is less than 1 mm, the contact area between the two is relatively increased, which helps to disperse the frictional force and reduce the frictional resistance; the small gap between the accommodating groove 600 and the rotating ball 300 helps to reduce noise and vibration caused by friction and impact.

[0035] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A continuous beam swivel spherical hinge device, characterized by, The device comprises an upper spherical hinge, a lower spherical hinge, a rotating ball and a positioning shaft, the rotating ball is connected with the lower spherical hinge, the lower spherical hinge is provided with a containing groove on one side facing the upper spherical hinge, the rotating ball is arranged in the containing groove, and the rotating ball is in rolling connection with the upper spherical hinge and protrudes from the containing groove; The positioning shaft is arranged in the lower spherical hinge and extends out of the lower spherical hinge to be connected with the upper spherical hinge, and the positioning shaft is located on the same central axis of the lower spherical hinge and the upper spherical hinge.

2. A continuous beam swivel spherical hinge device according to claim 1, characterized in that, In the same plane, the projection of the upper spherical hinge falls into the lower spherical hinge.

3. A continuous beam swivel spherical hinge device according to claim 1, characterized in that, The part of the rotating ball in the containing groove is a rotating part, and the volume ratio of the rotating part to the rotating ball is at least 4:

5.

4. The continuous beam swivel ball hinge device of claim 1, wherein, The number of the rotating balls is several.

5. A continuous beam swivel spherical hinge device according to claim 1, characterized in that, The contact parts of the rotating ball with the lower spherical hinge and the upper spherical hinge are all provided with a protective layer, the protective layer comprises a wear-resistant layer and a bonding layer, the wear-resistant layer is connected with the rotating ball, and the bonding layer is located between the rotating ball and the wear-resistant layer.

6. A continuous beam swivel spherical hinge device according to claim 1, characterized in that, The shape of the containing groove is a copy of the rotating ball.

7. A continuous beam swivel spherical hinge device according to claim 1, characterized in that, The distance between the containing groove and the rotating ball is less than 1 mm.

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