Tower top structure assembly capable of improving locking force

Abstract

The utility model discloses a tower top structure component capable of improving locking force, which comprises a tower top and a connecting seat, the connecting seat is provided with a ball head shaft hole, a rubber bushing is arranged in the ball head shaft hole, the rubber bushing and the connecting seat are in interference fit, the rubber bushing is pressed into the ball head shaft hole of the connecting seat to form an initial whole, and the initial whole is connected with the tower top. The tower top is of an annular structure and is arranged outside the preliminary whole in a sleeving mode, a threaded hole is formed in the tower top and communicates with a center hole of the rubber bushing, the tower top and the preliminary whole are fixedly connected through a bolt, the bolt is sleeved with a pair of steel sleeves, and the steel sleeves are located on the left side and the right side of the rubber bushing correspondingly; and torque is applied to the bolt, and the torque is converted into locking force of the structure. By arranging the steel bushing, the rubber bushing is prevented from being in direct contact with the tower top, the locking force of the whole structure can be remarkably improved, the stability and the reliability of the structure are ensured, and meanwhile, the service life of parts is also considered.

Description

Technical Field

[0001] The utility model relates to the technical field of tower tops, in particular to a tower top structural component with improved locking force. Background Art

[0002] The top mount, also known as the tower top bracket, is used to install, fix and support the shock absorber. The main function of the top mount is to connect the shock absorber body and the suspension body. The existing top mount includes the following two technical structures:

[0003] 1. Gearless bushing locking tower top structure

[0004] This technology has its drawbacks: The ends of the inner tube of a standard bushing are machined normally, without shaping to save costs. Locking force is applied by fitting the inner tube flat against the tower top surface, threaded together. However, the metal-to-metal friction coefficient is low, generally below 0.4. Under the same thread torque conditions, the resulting locking force is insufficient to ensure structural stability, posing a potential risk of product parts separating.

[0005] 2. Multi-tooth bushing locking tower top structure

[0006] Problems and disadvantages of this technology: The two ends of the inner tube of the bushing are processed into a uniformly distributed multi-tooth structure through a rolling process, and the purpose of increasing friction is achieved by embedding the gears into the tower top; however, after the influence of long-term dynamic loads, the gears will continuously wear the contact surface of the tower top. The deeper the gears are embedded, the more serious the wear of the tower top. Therefore, this structure greatly shortens the service life of the product. Utility Model Content

[0007] The purpose of the utility model is to provide a tower top structure component with improved locking force in view of the defects and shortcomings of the prior art.

[0008] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a tower top structural component with improved locking force, including a tower top and a connecting seat, and its innovation lies in: the connecting seat has a ball head shaft hole, and a rubber bushing is arranged inside the ball head shaft hole. The rubber bushing and the connecting seat are interfered with, and the rubber bushing is pressed into the ball head shaft hole of the connecting seat to form a preliminary whole. The tower top is an annular structure, which is sleeved on the outside of the preliminary whole, and a threaded hole is opened inside the tower top, and the threaded hole is connected to the center hole of the rubber bushing, and the tower top and the preliminary whole are fixedly connected by bolts, and a pair of steel sleeves are sleeved on the outside of the bolts, and the steel sleeves are respectively located on the left and right sides of the rubber bushing, and by applying torque to the bolts, the torque is converted into the locking force of the structure.

[0009] Furthermore, the steel sleeve includes a steel pipe and a steel plate, the steel pipe is sleeved on the bolt, and the steel plate is pressed against the left and right sides of the rubber bushing.

[0010] After adopting the above structure, the beneficial effects of the utility model are:

[0011] The utility model provides a steel sleeve, which not only avoids direct contact between the rubber bushing and the tower top, but also significantly improves the locking force of the overall structure, ensures the stability and reliability of the structure while taking into account the service life of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 It is a structural diagram of the rubber bushing in the utility model.

[0015] Description of reference numerals:

[0016] 1 tower top, 2 connecting seat, 3 rubber bushing, 4 bolts, 5 steel sleeve, 51 steel pipe, 52 steel plate. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] See Figure 1-3A tower top structural component with improved locking force includes a tower top 1 and a connecting seat 2. The connecting seat 2 has a ball head shaft hole, and a rubber bushing 3 is arranged inside the ball head shaft hole. The rubber bushing 3 and the connecting seat 2 are interfered with, and the rubber bushing 3 is pressed into the ball head shaft hole of the connecting seat to form a preliminary whole. The tower top 1 is an annular structure, which is sleeved on the outside of the preliminary whole, and a threaded hole is opened inside the tower top, and the threaded hole is connected to the center hole of the rubber bushing, and the tower top 1 and the preliminary whole are fixedly connected by bolts 4. A pair of steel sleeves 5 are sleeved on the outside of the bolts 4, and the steel sleeves 5 are respectively located on the left and right sides of the rubber bushing 3, and by applying torque to the bolts 4, the torque is converted into the locking force of the structure. Specifically, the rubber bushing 3 and the connecting seat 2 are interference fit, and the rubber bushing 3 is pressed into the ball head shaft hole of the connecting seat 2 to realize the connection between the rubber bushing 3 and the connecting seat 2, and form a preliminary whole; this preliminary whole is connected to the tower top 1 by bolts 4 to realize the connection between the tower top 1, the bolts 4 and the preliminary whole; the steel sleeve is embedded between the threaded holes at both ends of the tower top 1 before the hexagon socket bolts are assembled, so as to naturally realize the connection between the steel sleeve 5 and the preliminary whole, and by applying torque to the bolts, the torque is converted into a locking force of the structure to ensure the stability of the structure; the bolts 4 are preferably hexagon socket bolts, which are convenient for assembly.

[0020] In this embodiment, the steel sleeve 5 includes a steel tube 51 and a steel plate 52. The steel tube 51 is sleeved on the bolt 4, and the steel plate 52 is pressed against the left and right sides of the rubber bushing 3. The steel tube 51 is locked with the bolt 4, while the steel plate 52 prevents direct contact between the rubber bushing and the tower top.

[0021] The working principle of this utility model:

[0022] As the torque of the bolt 4 gradually increases, the pressure of the tower top 1 on the rubber bushing 3 also gradually increases, but there is no direct contact between the two. Instead, the steel sleeve 5 separates the two to prevent the gear hobbing on the rubber bushing 3 from wearing onto the tower top 1. Since the inner tube of the rubber bushing 3 is made of steel and the tower top 1 is made of aluminum, in order to ensure the reliability of the structure, the overall locking force inevitably needs to be increased. The presence of the steel sleeve 5 avoids direct contact between the rubber bushing 3 and the tower top 1, and can withstand the high pressure of the gear hobbing of the rubber bushing 3. Therefore, it not only avoids the wear of the tower top 1, but also significantly improves the locking force of the overall structure, ensuring the stability and reliability of the structure while taking into account the service life of the parts.

[0023] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A tower top structural assembly with improved locking force, comprising a tower top and a connecting seat, characterized in that: The connecting seat has a ball head shaft hole, and a rubber bushing is arranged inside the ball head shaft hole. The rubber bushing is pressed into the ball head shaft hole of the connecting seat by interference fit with the connecting seat to form a preliminary whole. The tower top is an annular structure, which is sleeved on the outside of the preliminary whole, and a threaded hole is opened inside the tower top, and the threaded hole is connected to the center hole of the rubber bushing. The tower top and the preliminary whole are fixedly connected by bolts. A pair of steel sleeves are sleeved on the outside of the bolts, and the steel sleeves are respectively located on the left and right sides of the rubber bushing. By applying torque to the bolts, the torque is converted into a locking force of the structure.

2. The tower top structural assembly with improved locking force according to claim 1, characterized in that: The steel sleeve comprises a steel pipe and a steel plate. The steel pipe is sleeved on the bolt, and the steel plate is pressed against the left and right sides of the rubber bushing.

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