Shifting fork magnet assembly based on clutch automatic gearbox

Abstract

The utility model discloses a shifting fork magnet assembly based on an automatic gearbox of a clutch, which comprises a V-shaped pole piece and a middle column integrally formed at the bending point position of the top end of the V-shaped pole piece, and T-shaped magnetic blocks are mounted on two sides of the top end of the V-shaped pole piece through arched inserting structures. The bottom end of the V-shaped pole piece is provided with a double-point bolting structure used for being fixed to the T-shaped magnetic block. According to the utility model, the T-shaped magnetic block and the V-shaped pole piece are preliminarily connected through the arched plug-in structure and are secondarily fixed through the double-point bolting structure, and pressure is applied to two fixed points, so that the firmness of connection can be still kept under extreme conditions such as vibration during high-speed driving, and the reliability of the whole assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a gearbox operating fork structure, in particular to a fork magnet assembly based on a clutch automatic gearbox. Background Art

[0002] The automatic transmission is one of the key components of the vehicle's transmission system. It is responsible for automatically selecting the appropriate transmission ratio based on vehicle speed, speed and other parameters to ensure that the engine can provide the best power output under different working conditions. The gear shifting process is achieved inside the gearbox through a complex gear, clutch and hydraulic control system, and the shift fork and its magnet assembly are an important part of this process. The electromagnetic magnet, which interacts with the shift fork or other magnetic components through the magnetic field generated when activated by electric current, controls the mechanical action inside the gearbox. In order to effectively transmit magnetic force and protect the electromagnetic magnet, special magnetic materials and packaging are usually used. In addition, the components also include connectors and electrical interfaces for connecting to the vehicle's electrical system, receiving signals from the transmission control unit and performing corresponding actions;

[0003] For example, the magnet mechanism of a gear shift guide mechanism fork disclosed in the authorization announcement number CN208153715U comprises a pole piece, a first magnet and a second magnet. A pole piece connection window is arranged at the center of the pole piece for welding the pole piece together. The whole is welded to the guide mechanism fork, uniformly magnetized and partially demagnetized, thus avoiding the problems of missing magnets and reverse pole installation. However, during use, the contact surface between the magnet and the pole piece is bonded and connected with an adhesive. The internal working environment of the automatic transmission is usually at a high temperature. In particular, when driving at high speed for a long time or driving vigorously, the inside of the transmission will be heated. The heat resistance of the adhesive makes it difficult to withstand high temperature for a long time, resulting in a decrease in the bonding strength and structural stability of the bonding part, thereby causing the connection between the magnet and the pole piece to loosen or fall off. Utility Model Content

[0004] The purpose of the utility model is to provide a fork magnet assembly based on a clutch automatic transmission, which adopts a V-shaped pole piece, and the V-shaped pole piece and the T-shaped magnetic block are initially connected by plug-in connection. The connected V-shaped pole piece and the T-shaped magnetic block are secondarily fixed by a double-point bolting structure, and finally the V-shaped pole piece and the fork are bonded and the edges are welded, and the fork, the V-shaped pole piece and the T-shaped magnetic block are uniformly magnetized and partially demagnetized to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shift fork magnet assembly based on a clutch automatic transmission, comprising a V-shaped pole piece and a center column integrally formed at the bending point at the top of the V-shaped pole piece, T-shaped magnetic blocks are installed on both sides of the top of the V-shaped pole piece through an arched plug-in structure, and a double-point bolting structure is provided at the bottom end of the V-shaped pole piece for fixing with the T-shaped magnetic block.

[0006] Preferably, an internal thread column is integrally formed inside the middle column, the top plane of the internal thread column is flush with the top plane of the middle column, and the lower surface of the V-shaped pole piece is provided with a plurality of linear glue grooves.

[0007] Preferably, the arch plug-in structure includes bridge arch protrusions integrally formed on both sides of the top of the V-shaped pole piece, and two arch grooves arranged at the bottom of the T-shaped magnetic block, and the arch grooves and bridge arch protrusions are plugged into each other.

[0008] Preferably, the arched plug-in structure further includes straight grooves arranged on both sides of the top of the V-shaped pole piece, and a straight riser fixed to the top of the V-shaped pole piece for plugging into the straight grooves.

[0009] Preferably, a limiting block is fixed to one end of the T-shaped magnetic block close to the middle column, an arc-shaped wall is arranged on an outer wall of one side of the limiting block, and the diameter of the arc-shaped wall is the same as the outer diameter of the middle column.

[0010] Preferably, the double-point bolting structure includes a countersunk hole arranged at the bottom end of the V-shaped pole piece, and a long bolt installed inside the countersunk hole, and the top end of the long bolt passes through the outside of the raised part of the bridge arch.

[0011] Preferably, an internal threaded hole for threaded engagement with a long bolt is provided on the top wall of the arch groove.

[0012] Compared with the prior art, the beneficial effect of the utility model is that the fork magnet assembly based on the clutch automatic transmission is provided with a T-shaped magnetic block and a V-shaped pole piece and other structures that cooperate with each other. The T-shaped magnetic block and the V-shaped pole piece are initially connected by an arched plug-in structure, and the two are secondarily fixed by a double-point bolting structure. By applying pressure on the two fixed points, it is ensured that the connection can be maintained firmly under extreme conditions, such as vibration during high-speed driving, thereby improving the reliability of the overall assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3This is a schematic diagram of the main structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the V-shaped pole piece of the utility model;

[0017] Figure 5 The three-dimensional structure of the T-shaped magnetic block of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 6 The three-dimensional structure of the T-shaped magnetic block of the utility model is shown in FIG. Figure 2 .

[0019] In the figure: 1, V-shaped pole piece; 101, straight rubber groove; 102, bridge arch protrusion; 103, straight-mouth riser; 2, center column; 3, internally threaded column; 4, T-shaped magnetic block; 401, arch groove; 402, straight-mouth groove; 5, limit block; 501, arc wall; 6, countersunk hole; 7, long bolt; 8, internally threaded hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-6 The utility model provides an embodiment: a fork magnet assembly based on a clutch automatic transmission, comprising a V-shaped pole piece 1 and a center column 2 integrally formed at the bending point of the top of the V-shaped pole piece 1, T-shaped magnetic blocks 4 are installed on both sides of the top of the V-shaped pole piece 1 through an arched plug-in structure, and a double-point bolting structure for fixing with the T-shaped magnetic block 4 is provided at the bottom of the V-shaped pole piece 1;

[0022] The arch plug-in structure includes a bridge arch protrusion 102 integrally formed on both sides of the top of the V-shaped pole piece 1, and two arch grooves 401 arranged at the bottom of the T-shaped magnetic block 4, the arch groove 401 and the bridge arch protrusion 102 are plugged into each other, and the arch plug-in structure also includes a straight groove 402 arranged on both sides of the top of the V-shaped pole piece 1, and a straight-mouth type riser 103 fixed at the top of the V-shaped pole piece 1 for plugging with the straight groove 402;

[0023] The arch groove 401 at the bottom of the T-shaped magnetic block 4 is fitted with the bridge arch protrusion 102 at the top of the V-shaped pole piece 1. When the two are vertically plugged into the outer wall, the straight-mouth groove 402 and the straight-mouth type riser 103 will be plugged in synchronously, which provides sufficient stability without the need for additional fixing, and prevents poor contact or magnetic failure caused by vibration or relative movement during movement;

[0024] A limiting block 5 is fixed to one end of the T-shaped magnetic block 4 close to the middle column 2, and an arc-shaped wall 501 is arranged on one side outer wall of the limiting block 5. When the T-shaped magnetic block 4 and the V-shaped pole piece 1 are connected, the limiting block 5 and the arc-shaped wall 501 enable the T-shaped magnetic block 4 and the middle column 2 to be stably connected in a sleeve manner, and the installation position of the T-shaped magnetic block 4 can be calibrated, so that the staff can conveniently perform the plug-in operation of the V-shaped pole piece 1 and the T-shaped magnetic block 4;

[0025] The diameter of the arc wall 501 is the same as the outer diameter of the center column 2. The double-point bolting structure includes a countersunk hole 6 arranged at the bottom end of the V-shaped pole piece 1, and a long bolt 7 installed inside the countersunk hole 6. The top end of the long bolt 7 penetrates to the outside of the bridge arch protrusion 102.

[0026] An internal threaded hole 8 for threaded engagement of a long bolt 7 is provided on the top wall of the arch groove 401. After the V-shaped pole piece 1 and the T-shaped magnetic block 4 are connected, the staff takes out the long bolt 7, passes the long bolt 7 through the countersunk hole 6 and screws it into the internal threaded hole 8 at the bottom end of the T-shaped magnetic block 4 until the long bolt 7 is screwed to the limit position, thereby strengthening the connection stability between the V-shaped pole piece 1 and the T-shaped magnetic block 4.

[0027] An internal threaded column 3 is integrally formed inside the middle column 2, and the top plane of the internal threaded column 3 is flush with the top plane of the middle column 2. A plurality of linear glue grooves 101 are provided on the lower surface of the V-shaped pole piece 1. When the V-shaped pole piece 1 is bonded to the shift fork, the linear glue grooves 101 allow the bottom surface of the V-shaped pole piece 1 to accommodate more glue, assisting the V-shaped pole piece 1 in making a preliminary connection by plugging and unplugging, and facilitating the welding operation between the V-shaped pole piece 1 and the shift fork.

[0028] When the embodiment of the present application is in use, the staff first takes out the shift fork, V-shaped pole piece 1 and T-shaped magnetic block 4 to be assembled. Two T-shaped magnetic blocks 4 are needed, so that the T-shaped magnetic block 4 and the V-shaped pole piece 1 are initially connected through the arched plug-in structure until the two are assembled together. This design can ensure that during the assembly of the shift fork magnet assembly, the connection between the V-shaped pole piece 1 and the T-shaped magnetic block 4 is tight and not easy to loosen. Then the staff uses the double-point bolting structure to perform a secondary fixation on the two to ensure that the V-shaped pole piece 1 and the T-shaped magnetic block 4 are stably assembled together, and by applying pressure on the two fixed points, it is ensured that under extreme conditions, such as vibration during high-speed driving. The firmness of the connection can still be maintained, thereby improving the reliability of the overall assembly. After the V-shaped pole piece 1 and the T-shaped magnetic block 4 are assembled, the staff bonds the contact surface between the fork and the V-shaped pole piece 1 with a strong adhesive. After the bonding is stable, the edge contact positions of the V-shaped pole piece 1 and the fork are welded to ensure that the fork and the V-shaped pole piece 1 are stably fixed together. Finally, the fork, V-shaped pole piece, and T-shaped magnetic block are uniformly magnetized and partially demagnetized through a magnetic ring device. Edge welding further ensures the structural integration and stability between the V-shaped pole piece 1 and the fork, and helps to improve the electromagnetic conduction efficiency between the pole piece and the fork, ensuring reliability and efficiency during electromagnetic activation.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fork magnet assembly based on a clutch automatic transmission, characterized in that: The invention comprises a V-shaped pole piece (1) and a center column (2) integrally formed at the bending point of the top end of the V-shaped pole piece (1), T-shaped magnetic blocks (4) are installed on both sides of the top end of the V-shaped pole piece (1) through an arched plug-in structure, and a double-point bolt connection structure for fixing the T-shaped magnetic block (4) is provided at the bottom end of the V-shaped pole piece (1).

2. The fork magnet assembly based on the clutch automatic transmission according to claim 1 is characterized in that: An internal thread column (3) is integrally formed inside the middle column (2), the top plane of the internal thread column (3) is flush with the top plane of the middle column (2), and a plurality of linear glue grooves (101) are provided on the lower surface of the V-shaped pole piece (1).

3. The fork magnet assembly based on the clutch automatic transmission according to claim 1 is characterized in that: The arch plug-in structure comprises bridge arch protrusions (102) integrally formed on both sides of the top of the V-shaped pole piece (1), and two arch grooves (401) arranged at the bottom of the T-shaped magnetic block (4), wherein the arch grooves (401) and the bridge arch protrusions (102) are plugged into each other.

4. The fork magnet assembly based on the clutch automatic transmission according to claim 3 is characterized in that: The arched plug-in structure also includes straight grooves (402) arranged on both sides of the top of the V-shaped pole piece (1), and a straight vertical pipe (103) fixed to the top of the V-shaped pole piece (1) for plugging into the straight grooves (402).

5. The fork magnet assembly based on the clutch automatic transmission according to claim 1 is characterized in that: A limiting block (5) is fixed to one end of the T-shaped magnetic block (4) close to the middle column (2); an arc-shaped wall (501) is provided on an outer wall of one side of the limiting block (5); and the diameter of the arc-shaped wall (501) is the same as the outer diameter of the middle column (2).

6. The fork magnet assembly based on the clutch automatic transmission according to claim 3 is characterized in that: The double-point bolting structure comprises a countersunk hole (6) arranged at the bottom end of the V-shaped pole piece (1), and a long bolt (7) installed inside the countersunk hole (6), and the top end of the long bolt (7) penetrates to the outside of the bridge arch protrusion (102).

7. The fork magnet assembly based on the clutch automatic transmission according to claim 6 is characterized in that: An internal threaded hole (8) for threadably engaging a long bolt (7) is provided on the top wall of the arch groove (401).

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