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CN-122016152-A - Tire balancing machine adapting clamp based on locking of hub bolt holes and using method

CN122016152ACN 122016152 ACN122016152 ACN 122016152ACN-122016152-A

Abstract

A tire balancing machine adapting clamp based on locking of hub bolt holes and a use method thereof belong to the technical field of tire dynamic balance detection. The locking device comprises a central disc and a plurality of locking columns, wherein a central shaft hole for connecting with a main shaft of a balancing machine is arranged in the center of the central disc, a plurality of groups of first connecting holes which are uniformly distributed in a circumference mode by taking the central shaft hole as the center are formed in the center of the central disc, one end of each locking column is a mounting end, the other end of each locking column is an insertion end, the mounting end is selectively connected with the first connecting holes in different positions on the central disc so as to adapt to hubs with corresponding diameters, the insertion ends penetrate through corresponding bolt holes in the hubs, and conical surface structures are arranged at the ends of the insertion ends and used for guiding centering during insertion and forming interference fit with the inner walls of the bolt holes after insertion to realize locking. According to the invention, the hub bolt holes are used for positioning and replacing the central hole for locking, the adjustable locking column is used for adapting to the multi-hole hub, the conical surface self-centering and interference self-locking are utilized, the hub is prevented from being damaged, and the dynamic balance detection method is suitable for dynamic balance detection of various vehicle types.

Inventors

  • YUE WENPENG
  • LIU ZHIQIANG
  • YAO YONGQIANG

Assignees

  • 杭州鸿途机械设备有限公司

Dates

Publication Date
20260512
Application Date
20260205

Claims (9)

  1. 1. The tire balancing machine adapting clamp based on hub bolt hole locking is characterized by comprising a center disc (1) and a plurality of locking columns (2) detachably arranged on the center disc (1), wherein a center shaft hole (101) for being connected with a main shaft of a balancing machine is arranged in the center of the center disc (1), a plurality of groups of first connecting holes (102) which are uniformly distributed around the center shaft hole (101) are formed, one end of each locking column (2) is a mounting end (201), the other end of each locking column is an inserting end (202), the mounting ends (201) are selectively connected with the first connecting holes (102) at different positions on the center disc (1) so as to adapt to hubs with corresponding diameters, the inserting ends (202) penetrate through corresponding bolt holes on the hubs, and conical surface structures are arranged at the ends of the inserting ends (202) and are used for guiding centering during insertion and forming interference fit with the inner walls of the bolt holes to realize locking.
  2. 2. A tyre balancing machine adapting fixture based on locking of hub bolt holes according to claim 1, characterized in that each set of first connecting holes (102) is located on a distribution circumference of different diameter for adapting to hubs of different pitch diameter.
  3. 3. The tyre balancing machine adapting fixture based on hub bolt hole locking according to claim 1, wherein two groups of first connecting holes (102) are arranged on the central disc (1), wherein the diameter of the distribution circumference of one group of first connecting holes (102) is matched with the standard pitch circle diameter of the five-hole hub, and the diameter of the distribution circumference of the other group of first connecting holes (102) is matched with the standard pitch circle diameter of the six-hole hub.
  4. 4. Tyre balancing machine adapter fixture based on hub bolt hole locking according to claim 1, characterized in that the mounting end (201) of the locking post (2) is inserted into the corresponding first connecting hole (102) and is mounted in close fit with the first connecting hole (102), and that the mounting end (201) is provided with a set of elastic members (3) for close fit.
  5. 5. The tyre balancing machine adapting clamp based on hub bolt hole locking according to claim 4, wherein the elastic member (3) is one of an O-ring, a spring collar or a rubber sleeve.
  6. 6. The tyre balancing machine adapting fixture based on hub bolt hole locking according to claim 1, wherein the locking column (2) is of a split assembly structure, comprising an upper column body and a lower column body which are tightly mounted, the upper column body is used as a mounting end (201), and the lower column body is used as an insertion end (202).
  7. 7. The tyre balancing machine adapting fixture based on hub bolt hole locking according to claim 1, characterized in that the two sides of the central disc (1) located in the central shaft hole (101) are provided with annular guiding structures (103) extending outwards along the hole edges.
  8. 8. The tire balance machine adapter fixture based on hub bolt hole locking according to claim 1, wherein a locating sleeve for limiting is arranged on the outer side of the fixture.
  9. 9. The application method of the tire balancing machine clamp based on the positioning of the hub bolt holes is characterized by comprising the following sequential steps: Step S1, tire preliminary positioning Lifting the tyre to be tested, enabling the central hole of the hub to be aligned along the axial direction and sleeved into the main shaft of the balancing machine, and temporarily supporting the tyre on the main shaft in a clamp-free state; Step S2, aligning and inserting the fixture Selecting a multifunctional clamp matched with the number and the distribution of the bolt holes of the hub, and sleeving the multifunctional clamp in the axial direction of the main shaft from the outer side of the tire, so that a plurality of locking columns (2) arranged on the clamp are respectively inserted into the bolt holes of the hub correspondingly; Step S3, axial pushing and self-locking The clamping apparatus is continuously pushed in the axial direction until the conical surface at the end part of the locking column (2) and the hub bolt hole form interference fit, so that the reliable fixation of the tire on the main shaft is realized; step S4 balance detection After the fixture is installed, the balancing machine is started to drive the tire and the fixture to integrally rotate, and dynamic balance detection and adjustment are carried out.

Description

Tire balancing machine adapting clamp based on locking of hub bolt holes and using method Technical Field The invention belongs to the technical field of dynamic balance detection of tires, and particularly relates to a tire balancing machine adapting clamp based on locking of hub bolt holes and a using method thereof. Background The dynamic tire balancer is an important device for car repair and maintenance, and is used for detecting the unbalance amount and the phase of a tire in a rotating state. In the prior art, a tire balancing machine usually adopts a central hole positioning mode, and a tire is fixed on a main shaft of the balancing machine through a central hole locking device for detection. However, this way of locating the central hole has the following problems: Firstly, the center hole locking device needs larger locking force, so that the center hole of the aluminum alloy hub is easy to damage, particularly for large-size off-road tires, the center hole is stressed too much and is easy to deform, secondly, the positioning precision of the center hole is relatively low, tiny eccentricity is easy to generate during high-speed rotation, the detection precision is influenced, in addition, the center hole sizes of the hubs of different vehicle types are different, center hole clamps with various specifications are required to be equipped, and the equipment cost and the operation complexity are increased. Disclosure of Invention Aiming at the problems in the prior art, the invention aims to provide a tire balancing machine adapting clamp based on locking of hub bolt holes and a using method thereof. The invention provides a tire balancing machine adapting fixture based on hub bolt hole locking, which comprises a central disc and a plurality of locking columns detachably arranged on the central disc, wherein the center of the central disc is provided with a central shaft hole for connecting with a main shaft of a balancing machine, a plurality of groups of first connecting holes which are uniformly distributed around the central shaft hole, one end of each locking column is a mounting end, the other end of each locking column is an inserting end, the mounting end is selectively connected with the first connecting holes at different positions on the central disc so as to adapt to hubs with corresponding diameters, the inserting ends penetrate through corresponding bolt holes on the hubs, and the end parts of the inserting ends are provided with conical surface structures for guiding centering during insertion and form interference fit with the inner walls of the bolt holes after insertion so as to realize locking. Further, each group of first connecting holes are positioned on the distribution circumferences with different diameters so as to be suitable for hubs with different pitch diameters. Further, two groups of first connecting holes are formed in the central disc, wherein the diameters of the distribution circumferences of one group of first connecting holes are matched with the standard pitch circle diameters of the five-hole hub, and the diameters of the distribution circumferences of the other group of first connecting holes are matched with the standard pitch circle diameters of the six-hole hub. Further, the mounting end of the locking column is inserted into the corresponding first connecting hole and is tightly matched with the first connecting hole, and a group of elastic pieces for tightly matching are arranged on the mounting end. Further, the elastic piece is one of an O-shaped sealing ring, a spring clamping ring or a rubber sleeve. Further, the locking column is of a split assembly structure and comprises an upper column body and a lower column body which are installed in a tight fit mode, wherein the upper column body is used as an installation end, and the lower column body is used as an insertion end. Further, annular guide structures extending outwards along the hole edges are arranged on two sides of the central shaft hole on the central disc. Further, a locating sleeve for limiting is arranged on the outer side of the clamp. The application method of the tire balancing machine clamp based on the positioning of the hub bolt holes comprises the following sequential steps: Step S1, tire preliminary positioning Lifting the tyre to be tested, enabling the central hole of the hub to be aligned along the axial direction and sleeved into the main shaft of the balancing machine, and temporarily supporting the tyre on the main shaft in a clamp-free state; Step S2, aligning and inserting the fixture Selecting a multifunctional clamp matched with the number and the distribution of the bolt holes of the hub, and sleeving the multifunctional clamp axially along a main shaft from the outer side of the tire, so that a plurality of locking columns arranged on the clamp are respectively inserted into the bolt holes of the hub correspondingly; Step S3, axial pushing and self-locking The clamping