Integral elastic positioning sleeve

Abstract

The utility model provides a whole elastic positioning sleeve belongs to positioning sleeve technical field, including two groups of positioning outer cover and positioning inner core and two groups of elastic connecting layer, positioning inner core is located in two groups of positioning outer cover, two groups of elastic connecting layer are located between two groups of positioning outer cover and positioning inner core respectively, all be equipped with the transition groove in two groups of elastic connecting layer, two groups of transition groove are close to two groups of positioning outer cover one side all set up limit strip, two groups of positioning outer cover and two groups of elastic connecting layer all present symmetrical setting, the utility model discloses through two groups of positioning outer cover, positioning inner core and two groups of elastic connecting layer's setting, so that the user can reduce traditional device step -by -step assembly multiple parts's process, directly carries out integral installation, has promoted the assembly convenience of the device, the user can pass through the elastic connecting layer, to effectively adapt the impact force of vibration generation, so that the user need not worry that the device appears the problem of fastener loosening under the vibration environment, has improved the positioning stability of the device.

Description

Technical Field

[0001] This utility model belongs to the field of positioning sleeve technology, and more specifically, it relates to an integral elastic positioning sleeve. Background Technology

[0002] In bus bogies, the primary train wheelset axle box positioning device mostly adopts a swing-arm type elastic node wear-free positioning, which achieves optimal matching of longitudinal and lateral positioning stiffness of the wheelset and ensures stable positioning performance. The elastic positioning sleeve is an important component in the primary train wheelset axle box positioning device of bus bogies. The traditional structure is generally made of a steel outer sleeve, a steel inner sleeve, and rubber vulcanization, ensuring good positioning stiffness and fatigue performance. However, the traditional elastic positioning sleeve structure and installation method have many components, resulting in a cumbersome and complex assembly process, reducing the convenience of the traditional device. In addition, the traditional device structure is relatively fixed, and problems such as loosening of fasteners are prone to occur during use, reducing the practicality of the traditional device. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an integral elastic positioning sleeve to solve the technical problems of inconvenient assembly and easy loosening of structural fasteners in traditional devices due to their numerous components.

[0004] The purpose and function of this utility model's integral elastic positioning sleeve are achieved through the following specific technical means: An integral elastic positioning sleeve includes two sets of positioning outer sleeves, a positioning inner core, and two sets of elastic connecting layers. The positioning inner core is located inside the two sets of positioning outer sleeves, and the two sets of elastic connecting layers are respectively located between the two sets of positioning outer sleeves and the positioning inner core. Each set of elastic connecting layers has a transition groove, and each set of transition grooves has a limit strip on the side near the two sets of positioning outer sleeves. The two sets of positioning outer sleeves and the two sets of elastic connecting layers are symmetrically arranged.

[0005] Ideally, the positioning inner core is integrally formed with a positioning protrusion, and two sets of elastic connecting layers are respectively disposed on both sides of the positioning protrusion. Both ends of the positioning inner core are provided with connecting shaft ends.

[0006] Ideally, both sets of elastic connecting layers have annular grooves on both sides near the ends of the two sets of connecting shafts, and both sets of elastic connecting layers are made of rubber.

[0007] Ideally, the two sets of elastic connecting layers are respectively sleeved on the positioning inner core, and the two sets of positioning outer layers are respectively sleeved on the two sets of elastic connecting layers.

[0008] Optimal, the two sets of elastic connecting layers are respectively connected to the two sets of positioning outer jackets and the positioning inner core through vulcanization.

[0009] Ideally, one end of the positioning outer sleeve and both ends of the positioning inner core are chamfered, and the chamfers of multiple sets are all 45°.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model, through the integrated vulcanization connection of two sets of positioning outer sleeves, a positioning inner core, and two sets of elastic connecting layers, as well as the overall symmetrical structure, allows users to skip the tedious step-by-step assembly of multiple parts in traditional devices and directly perform overall installation, thus improving the ease of assembly. After the vulcanized connection firmly fixes each component, the user can limit the two sets of elastic connecting layers through the positioning protrusions on the positioning inner core, thereby reducing component misalignment during assembly, making the user's assembly operation more efficient, and improving the practicality and accuracy of the device's assembly.

[0011] 2. When using this device, the user can effectively reduce the impact force generated by vibration through the elastic connecting layer made of rubber, as well as the transition groove and the annular groove near the connecting shaft end. This eliminates the user's concern about the fasteners loosening under vibration, thus improving the device's buffering and shock-resistant performance. Furthermore, the cooperation between the limiting strip in the transition groove and the positioning sleeve, along with the lateral limiting effect of the positioning protrusion on the elastic connecting layer, ensures that the device maintains a stable match in longitudinal and transverse positioning stiffness. This reduces the relative displacement of components during use, providing the user with the benefits of accurate positioning and reduced maintenance frequency, thereby improving the device's positioning stability and long-term reliability. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural schematic diagram of the present invention; Figure 2 This is the utility model Figure 1 Enlarged schematic diagram of region A in the middle.

[0013] In the diagram, the correspondence between component names and their corresponding reference numerals is as follows: 11. Positioning outer sleeve; 12. Positioning inner core; 13. Elastic connecting layer; 101. Transition groove; 102. Limiting strip; 103. Positioning protrusion; 104. Connecting shaft end; 105. Annular groove. Detailed Implementation

[0014] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0015] Example: For example Figures 1 to 2As shown, this utility model provides an integral elastic positioning sleeve, including two sets of positioning outer sleeves 11, a positioning inner core 12, and two sets of elastic connecting layers 13. The positioning inner core 12 is located inside the two sets of positioning outer sleeves 11, and the two sets of elastic connecting layers 13 are respectively located between the two sets of positioning outer sleeves 11 and the positioning inner core 12. The two sets of elastic connecting layers 13 are respectively sleeved on the positioning inner core 12, and the two sets of positioning outer sleeves 11 are respectively sleeved on the two sets of elastic connecting layers 13. The two sets of elastic connecting layers 13 are respectively connected to the two sets of positioning outer sleeves 11 and the positioning inner core 12 by vulcanization. Through the above structure, the components of the device can form a solid integral structure, reducing the occurrence of component loosening or separation during use. This allows users to install the device directly without additional multi-step assembly, improving the assembly efficiency and structural stability of the device.

[0016] The positioning core 12 has an integrally formed positioning protrusion 103, and two sets of elastic connecting layers 13 are respectively set on both sides of the positioning protrusion 103. The two sets of positioning outer sleeves 11 and the two sets of elastic connecting layers 13 are symmetrically arranged. The user can control the installation position of the two sets of elastic connecting layers 13 through the limiting effect of the positioning protrusion 103, reduce the offset and misalignment during assembly, and enable the device to maintain uniform matching of longitudinal and lateral positioning stiffness, thereby improving the positioning accuracy of the device and enhancing the user's ability to control the installation quality in scenarios such as bus bogie axle box positioning.

[0017] Both sets of elastic connecting layers 13 have transition grooves 101. Each set of transition grooves 101 has a limiting strip 102 on the side near the two sets of positioning sleeves 11. Through the cooperation of the transition grooves 101 and the limiting strips 102, the elastic connecting layers 13 can be provided with sufficient deformation space. At the same time, the limiting strips 102 can fit tightly against the inner wall of the positioning sleeves 11 to limit radial displacement. This allows the user to absorb the impact by the deformation of the elastic connecting layers 13 when facing vibration conditions, while ensuring positioning stability and improving the buffering and shock resistance performance of the device.

[0018] The positioning core 12 has connecting shaft ends 104 at both ends. The two sets of elastic connecting layers 13 have annular grooves 105 on both sides near the two sets of connecting shaft ends 104. The two sets of elastic connecting layers 13 are made of rubber. Users can enhance the buffering and vibration reduction effect of the device by using the high elasticity of the rubber material and the structural design of the annular grooves 105. This effectively resolves the vibration and impact force generated during the bus operation, reduces the impact of vibration on the positioning structure, improves the fatigue service life of the device, and enhances the convenience of equipment maintenance for users under complex working conditions.

[0019] Both ends of the two sets of positioning outer sleeves 11 and the two ends of the positioning inner core 12 are chamfered, with multiple chamfers at 45°. This chamfering structure can prevent sharp edges from scratching the user or mating parts during installation, while reducing guiding resistance during assembly. This allows the user to more smoothly connect the device with components such as the axle box, improving the ease of installation and safety of use of the device.

[0020] The specific usage and function of this embodiment are as follows: When using this device to position and assemble the axle box of a bus bogie, the user can directly remove the positioning sleeve, which is formed into an integral structure by vulcanization. The connecting shaft ends 104 at both ends of the positioning inner core 12 are precisely aligned with the shaft components. The 45° chamfer design reduces the risk of sharp edges scratching the user or the mating components, and also reduces the mating resistance, making the assembly smoother. The positioning protrusions 103 on the positioning inner core 12 limit the elastic connecting layers 13 on both sides. With the two sets of symmetrically arranged positioning outer sleeves 11, positioning can be completed directly by overall installation without additional step assembly.

[0021] During use, the elastic connecting layer 13 made of rubber obtains sufficient deformation space through the internal transition groove 101, and together with the annular groove 105 near the connecting shaft end 104, it can efficiently absorb the vibration and impact force during bus operation; the limiting strip 102 in the transition groove 101 fits tightly with the inner wall of the positioning sleeve 11, effectively limiting radial displacement and ensuring positioning stability; the synergistic effect of the symmetrical structure and the positioning protrusion 103 makes the longitudinal and transverse positioning stiffness of the device uniformly matched, and the vulcanized connection ensures that the components are firmly fixed and do not separate, avoiding loosening during use; through the coordinated cooperation of all parts, this device not only solves the problems of cumbersome assembly and easy loosening of traditional positioning sleeves, but also has the advantages of convenient installation, accurate positioning, shock absorption, safety and durability, reducing assembly and maintenance costs, and adapting to the positioning requirements of the primary wheelset axle box of bus bogies.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. An integral elastic positioning sleeve, comprising two sets of positioning outer sleeves (11) and a positioning inner core (12) and two sets of elastic connecting layers (13), characterized in that: The positioning inner core (12) is located inside the two sets of positioning outer sleeves (11), and the two sets of elastic connecting layers (13) are respectively located between the two sets of positioning outer sleeves (11) and the positioning inner core (12). A transition groove (101) is provided in each of the two sets of elastic connecting layers (13), and a limit strip (102) is provided on the side of each of the two sets of transition grooves (101) near the two sets of positioning outer sleeves (11). The two sets of positioning outer sleeves (11) and the two sets of elastic connecting layers (13) are symmetrically arranged.

2. The integral elastic positioning sleeve according to claim 1, characterized in that: The positioning inner core (12) has a positioning protrusion (103) integrally formed on it, and two sets of elastic connecting layers (13) are respectively disposed on both sides of the positioning protrusion (103). Both ends of the positioning inner core (12) are provided with connecting shaft ends (104).

3. The integral elastic positioning sleeve according to claim 2, characterized in that: Both sets of elastic connecting layers (13) have annular grooves (105) on both sides near the two sets of connecting shaft ends (104), and the two sets of elastic connecting layers (13) are made of rubber.

4. The integral elastic positioning sleeve according to claim 1, characterized in that: The two sets of elastic connecting layers (13) are respectively sleeved on the positioning inner core (12), and the two sets of positioning outer sleeves (11) are respectively sleeved on the two sets of elastic connecting layers (13).

5. The integral elastic positioning sleeve according to claim 4, characterized in that: The two sets of elastic connecting layers (13) are respectively connected to the two sets of positioning outer jackets (11) and positioning inner cores (12) by vulcanization.

6. The integral elastic positioning sleeve according to claim 1, characterized in that: Both ends of the two sets of positioning outer sleeves (11) and the two ends of the positioning inner core (12) are chamfered, and the chamfers of the multiple sets are all 45°.

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