Double-acting limiting plate structure

Abstract

The utility model discloses a double-acting limiting plate structure, which comprises a shifting block welding piece, a shifting block, a shifting block and a shifting block, the shifting block welding piece is connected with the rocker arm welding piece through an elastic cylindrical pin, and the bottom of the rocker arm welding piece penetrates through the limiting plate. The limiting plate is connected to the shell through a hexagonal head bolt, the shifting block welding piece is connected to the interior of the shell through an O-shaped rubber sealing ring, the O-shaped rubber sealing ring is located on a shaft section of the shifting block welding piece, and the O-shaped rubber sealing ring plays a sealing role. According to the double-acting limiting plate structure, the gear shifting action is achieved by rotating the rocker arm welding piece front and back, the problem that the efficiency is reduced due to the fact that the adjusting process is tedious is solved, the limiting plate is fixedly installed on the shell through the hexagonal head bolt and the spring washer, movement of the shifting block welding piece in the shaft section direction can be limited, and the service life of equipment is prolonged; and the whole structure is simple, operation and use are convenient, and the whole practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to local operation of tractors, in particular to a double-action limiting plate structure. Background Art

[0002] When a wheeled tractor is in operation, its operating system needs to be limited. The structural principles of the tractor operating mechanisms on the market are basically the same, but there are still certain defects in use.

[0003] During use, the overall structure is generally that the positioning rod passes through the through hole of the positioning block and is adjusted and fixed by a butterfly nut and fasteners. Therefore, the overall operating comfort is poor, it is not convenient for the driver to adjust the handle conveniently and accurately during field operations, and it is easy to cause misoperation;

[0004] In order to overcome the above-mentioned defects, prior art 1 (application number 201320023877.3, Chinese patent application date 2013-01-17) is a tractor hoist operating mechanism adjustment and positioning device, comprising: a positioning rod, a retaining ring, a washer, a positioning knob assembly, a positioning block, and a positioning rod support; the positioning rod is fixedly connected to the bottom of the positioning rod support, the positioning rod support cooperates with the flange at the lower part of the floor slot, the positioning block passes through the positioning rod and is embedded in the slot of the floor, is tightened and positioned by the positioning knob assembly, and is locked at the upper end of the positioning rod by the washer and the retaining ring, the width of the positioning rod support is determined according to the width of the slot on the floor or fender, the flange of the floor opening and the "U"-shaped groove of the positioning rod support are in point contact, the adjustment and sliding are smooth, the friction is small, and there is no sticking phenomenon, the driver can conveniently and accurately fix it in a certain gear when adjusting the force and position adjustment handle, and the top of the positioning rod is equipped with a washer and a retaining ring to prevent the positioning knob assembly from falling off when unscrewing;

[0005] Although the existing technology can improve the overall comfort, during the operation, the positioning is performed by tightening the positioning knob assembly, and the positioning knob assembly may be affected by the external environment during the operation and become loose, thereby affecting the stability of the positioning. In addition, the positioning knob needs to be tightened during the adjustment process, and there are many overall parts, which may make the adjustment process more cumbersome and affect the efficiency of the operation.

[0006] In response to the above problems, it is urgent to carry out innovative design based on the original double-acting limit plate structure. Therefore, we proposed a double-acting limit plate structure that can well solve the above problems. Utility Model Content

[0007] The purpose of the present utility model is to provide a double-acting limit plate structure to solve the problem raised in the above-mentioned background technology that the current market operates by tightening the positioning knob assembly, and the positioning knob assembly may be affected by the external environment during operation and become loose, thereby affecting the stability of the positioning, and the positioning knob needs to be tightened during the adjustment process. The overall number of parts is large, which may make the adjustment process more cumbersome and affect the operating efficiency.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-acting limit plate structure, a shift head welded part, which is installed inside the housing and is used to switch gears;

[0009] The dial head welded part is connected to the rocker arm welded part through an elastic cylindrical pin, and the bottom of the rocker arm welded part is penetrated by the limit plate;

[0010] The limiting plate is connected to the housing through a hexagonal bolt.

[0011] Preferably, the shift head welded part is connected to the inside of the housing through an O-ring rubber sealing ring, and the O-ring rubber sealing ring is located on the shaft section of the shift head welded part. The O-ring rubber sealing ring plays a sealing role. The rocker arm welded part and the shift head welded part are connected by an elastic cylindrical pin. The gear shifting action is achieved by rotating the rocker arm welded part back and forth, and the limit plate is fixed to the housing with a hexagonal bolt and a spring washer, which can limit the movement of the shift head welded part along the shaft section direction. The shift head welded part can be used as a second fixing point for the limit plate in addition to the hexagonal bolt.

[0012] Preferably, the rocker arm welded part is arranged to be detachably mounted and positioned via an elastic cylindrical pin and a shift head welded part, and the shifting action is achieved by rotating the rocker arm welded part forward and backward to drive the shift head welded part.

[0013] Preferably, the limit plate and the dial head welded part are arranged through each other, and the connecting end of the dial head welded part and the rocker arm welded part is located on the left side of the limit plate, and the limit plate limits the movement of the dial head welded part in the axial direction.

[0014] Preferably, the diameter of the connecting end of the shift head welded part and the rocker arm welded part is larger than the diameter of the shift head welded part on the right side of the limiting plate.

[0015] Preferably, the limit plate is arranged in a "7" shape, and a hole groove is provided at the point where the upper end of the "7" of the limit plate and the rocker arm weldment penetrate, and the hole groove limits the forward and backward rotation angle of the rocker arm weldment.

[0016] Preferably, a spring washer is installed on the outside of the connection between the hexagonal head bolt and the limiting plate.

[0017] Preferably, the rocker arm welded component includes: a support plate, a fixing component and a handheld component, wherein the fixing component is vertically installed on the inner side of the support plate, and the end of the fixing component is connected to the handheld component.

[0018] Preferably, the hand piece is spherical, the fixing piece and the shift head welded piece are parallel, the rocker arm welded piece is fixed to the fixing piece through a support plate, so that the stability of the rocker arm welded piece is greatly improved, and the hand piece can effectively realize the gear shifting action, ensuring that the shift head welded piece switches smoothly between the correct gears. The shift head welded piece is installed inside the shell and is responsible for switching the gears of the tractor, ensuring stable operation even under high load and harsh working conditions, thereby improving the overall stability.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the double-acting limit plate structure realizes the gear shifting action by rotating the rocker arm welded part forward and backward, reducing the problem of reduced efficiency caused by the cumbersome adjustment process, and the limit plate is fixed to the housing with a hexagonal bolt and a spring washer, which can limit the movement of the shift head welded part along the shaft section direction, thereby extending the service life of the equipment. The overall structure is simple, easy to operate and use, and improves the overall practicality. The specific contents are as follows:

[0020] Gear shifting is achieved by rotating the rocker arm weldment forward and backward. The overall operation is simple and convenient, reducing the problem of reduced efficiency caused by the cumbersome adjustment process. The shifter weldment is used as the second point of fixation for the limit plate in addition to the hexagonal head bolt, making the overall support more stable.

[0021] The shifter welded part is installed inside the housing and is used to switch gears. The O-shaped rubber sealing ring is installed on the shaft section of the shifter welded part to act as a seal. The rocker arm welded part and the shifter welded part are connected with an elastic cylindrical pin, which improves the overall sealing performance and greatly increases the overall service life.

[0022] The limit plate is fixed to the housing by means of hexagonal bolts and spring washers, which can limit the forward and backward rotation angle of the rocker arm weldment. By limiting the rotation angle of the rocker arm weldment, it ensures that it operates within the predetermined working range, thereby improving the accuracy of operation and reducing instability caused by vibration.

[0023] The rocker arm weldment is fixed by a support plate and a fixing piece, which greatly improves the stability of the rocker arm weldment. The use of a spherical handpiece effectively realizes the gear shifting action, ensuring that the shift head weldment switches smoothly between the correct gears, improving the overall operating comfort.

[0024] The O-ring is located on the shaft section of the dial head weldment to provide good sealing performance, prevent liquid or dirt from entering the internal mechanism, thereby improving the reliability and service life of the equipment and facilitating operation by users. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0027] Figure 3 This is a schematic diagram of the top view of the structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the connection structure between the housing and the hexagonal bolt of the utility model;

[0029] Figure 5 This is a schematic diagram of the disassembled structure of the housing and the hexagonal bolt of the utility model.

[0030] In the figure: 1. Rocker arm weldment; 101. Support plate; 102. Fixing part; 103. Hand piece; 2. Limit plate; 3. Elastic cylindrical pin; 4. Dial head weldment; 5. O-ring; 6. Housing; 7. Hexagonal head bolt; 8. Spring washer. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1: In this example, in order to improve the efficiency of the overall operation, the gear shifting action is achieved by setting a rocker arm weldment 1, the purpose of which is to reduce the problem of reduced efficiency caused by the cumbersome adjustment process, such as Figure 1 and Figure 3-Figure 5The technical solution shown in the figure is a dial head welded part 4, which is installed inside the housing 6 and is used to switch gears. The dial head welded part 4 is connected to the rocker arm welded part 1 through an elastic cylindrical pin 3. The bottom of the rocker arm welded part 1 is penetrated by the limit plate 2. The limit plate 2 is connected to the housing 6 through a hexagonal head bolt 7. The dial head welded part 4 is connected to the inside of the housing 6 through an O-shaped rubber sealing ring 5. The O-shaped rubber sealing ring 5 is located on the shaft section of the dial head welded part 4. The O-shaped rubber sealing ring 5 plays a sealing role. The rocker arm welded part 1 is set to a detachable installation position through the elastic cylindrical pin 3 and the dial head welded part 4, and is shaken by rotating it back and forth. The arm welded part 1 drives the shift head welded part 4 to realize the shifting action. The limit plate 2 is arranged through the shift head welded part 4. The connection end of the shift head welded part 4 and the rocker arm welded part 1 is located on the left side of the limit plate 2. The limit plate 2 limits the shift head welded part 4 from moving in the axial direction. The diameter of the connection end of the shift head welded part 4 and the rocker arm welded part 1 is larger than the diameter of the shift head welded part 4 on the right side of the limit plate 2. The limit plate 2 is arranged in a "7" shape. A hole groove is provided at the penetration point of the "7" upper end of the limit plate 2 and the rocker arm welded part 1. The hole groove limits the front and rear rotation angle of the rocker arm welded part 1. The connection between the hexagonal head bolt 7 and the limit plate 2 A spring washer 8 is installed on the outside, and the limit plate 2 is used for wheeled tractors. The shift head weldment 4 is installed inside the housing 6 for switching gears. The O-shaped rubber sealing ring 5 is installed on the shaft section of the shift head weldment 4 to play a sealing role. The rocker arm weldment 1 and the shift head weldment 4 are connected by an elastic cylindrical pin 3. The shifting action is achieved by rotating the rocker arm weldment 1 back and forth. The overall operation is simple and convenient, reducing the problem of reduced efficiency caused by the cumbersome adjustment process. The limit plate 2 is fixed to the housing 6 with a hexagonal bolt 7 and a spring washer 8, which can limit the movement of the shift head weldment 4 along the shaft section direction. , enhances the stability of the overall structure, ensures the stability of the equipment during operation, thereby controlling the gear shifting stroke, reducing the risk of accidents, ensuring the safety of operators, and reducing wear caused by movement, extending the service life of the equipment. The shift head weldment 4 can be used as the second point of fixation of the limit plate 2 in addition to the hexagonal head bolt 7, making the overall support more stable and reducing the loosening problem caused by the influence of the external environment on the device. The overall structure can simplify the number of parts and the structure of the operating system, facilitate disassembly and maintenance, and reduce the problem of inconvenience in overall operation caused by complicated structure.

[0033] Example 2: In this example, in order to improve the overall stability, the angle of rotation of the rocker arm welded part 1 is limited in order to reduce the instability caused by vibration. Figure 1-Figure 5As shown, it includes a dial head welded part 4, which is installed inside the housing 6 and is used to switch gears. The dial head welded part 4 is connected to the rocker arm welded part 1 through an elastic cylindrical pin 3. The bottom of the rocker arm welded part 1 is penetrated by the limit plate 2. The limit plate 2 is connected to the housing 6 through a hexagonal head bolt 7. The dial head welded part 4 is connected to the inside of the housing 6 through an O-shaped rubber sealing ring 5. The O-shaped rubber sealing ring 5 is located on the shaft section of the dial head welded part 4. The O-shaped rubber sealing ring 5 plays a sealing role. The rocker arm welded part 1 is set to be detachably installed and positioned through the elastic cylindrical pin 3 and the dial head welded part 4. The shifting action is achieved by rotating the rocker arm welded part 1 back and forth to drive the shift head welded part 4. The limit plate 2 is arranged through the shift head welded part 4. The connection end of the shift head welded part 4 and the rocker arm welded part 1 is located on the left side of the limit plate 2. The limit plate 2 limits the shift head welded part 4 from moving in the axial direction. The diameter of the connection end of the shift head welded part 4 and the rocker arm welded part 1 is larger than the diameter of the shift head welded part 4 on the right side of the limit plate 2. The limit plate 2 is arranged in a "7" shape. A hole groove is provided at the penetration point of the "7" upper end of the limit plate 2 and the rocker arm welded part 1. The hole groove limits the front and rear rotation angle of the rocker arm welded part 1. A spring washer 8 is installed on the outside of the connection between the hexagonal bolt 7 and the limit plate 2. The limit plate 2 is used for a wheeled tractor. The shift head weldment 4 is installed inside the housing 6 for switching gears. The O-shaped rubber sealing ring 5 is installed on the shaft section of the shift head weldment 4 for sealing. The rocker arm weldment 1 and the shift head weldment 4 are connected by an elastic cylindrical pin 3. The shifting action is achieved by rotating the rocker arm weldment 1 back and forth. The overall operation is simple and convenient, reducing the problem of inconvenience in overall operation caused by complicated structure. The limit plate 2 is fixedly mounted on the On the shell 6, the angle of rotation of the rocker arm weldment 1 can be limited. By limiting the rotation angle of the rocker arm weldment 1, it is ensured that it operates within a predetermined working range, thereby improving the accuracy of the operation, reducing the instability caused by vibration, and ensuring the stability of the equipment during operation. The head weldment 4 can be used as the second point of fixation of the limit plate 2 in addition to the hexagonal head bolt 7, making the overall support more stable. The overall structure can simplify the number of parts and the structure of the operating system, facilitate disassembly and maintenance, and reduce the problem of inconvenience in overall operation caused by the complicated structure.

[0034] Example 3: In this embodiment, in order to improve the overall service life, an O-shaped rubber sealing ring 5 is used to reduce the problem of liquid or dirt entering the internal mechanism and reducing the service life. Figure 1 and Figure 2As shown, it includes a dial head welded part 4, which is installed inside the housing 6 for switching gears. The dial head welded part 4 is connected to the rocker arm welded part 1 through an elastic cylindrical pin 3. The bottom of the rocker arm welded part 1 is penetrated by the limit plate 2. The limit plate 2 is connected to the housing 6 through a hexagonal head bolt 7. The dial head welded part 4 is connected to the inside of the housing 6 through an O-shaped rubber sealing ring 5. The O-shaped rubber sealing ring 5 is located on the shaft section of the dial head welded part 4. The O-shaped rubber sealing ring 5 plays a sealing role. The rocker arm welded part 1 is set to a detachable installation and positioning with the elastic cylindrical pin 3 and the dial head welded part 4. The shifting action is realized by rotating the rocker arm welded part 1 back and forth to drive the dial head welded part 4. The positioning plate 2 is penetrated by the dial head welded part 4, and the connection end of the dial head welded part 4 and the rocker arm welded part 1 is located on the left side of the limiting plate 2. The limiting plate 2 limits the movement of the dial head welded part 4 in the axial direction. The diameter of the connection end of the dial head welded part 4 and the rocker arm welded part 1 is larger than the diameter of the dial head welded part 4 on the right side of the limiting plate 2. The limiting plate 2 is set in a "7" shape. A hole groove is provided at the penetration point of the "7" upper end of the limiting plate 2 and the rocker arm welded part 1. The hole groove limits the front and rear rotation angle of the rocker arm welded part 1. A spring washer 8 is installed on the outside of the connection between the hexagonal head bolt 7 and the limiting plate 2. The rocker arm welded part 1 includes: a support plate 101, a fixing part 102 and a handpiece 103, a support A fixing part 102 is vertically installed on the inner side of the support plate 101, wherein the end of the fixing part 102 is connected to a hand piece 103, the hand piece 103 is spherical, the fixing part 102 is parallel to the head welding part 4, and the rocker arm welding part 1 is fixed to the fixing part 102 through the support plate 101, so that the stability of the rocker arm welding part 1 is greatly improved, and the hand piece 103 can effectively realize the gear shifting action, ensuring that the head welding part 4 switches smoothly between the correct gears. The head welding part 4 is installed inside the shell 6 and is responsible for switching the gears of the tractor, ensuring stable operation under high load and harsh working conditions, improving the overall stability, and limiting the rocker arm The angle of rotation of the welded part 1 can control the key part of the gear shift stroke, ensuring that the gear shift action can be carried out within the set range, avoiding over- or under-shifting, and the O-ring 5 is located on the shaft section of the shift head welded part 4, thereby providing good sealing performance, preventing liquid or dirt from entering the internal mechanism, thereby improving the reliability and service life of the equipment. The overall structure realizes reliable gear switching through precise mechanical design, improves the working efficiency and reliability of the tractor under complex working conditions, and facilitates user operation. The content not described in detail in this manual belongs to the existing technology known to professional and technical personnel in this field.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-acting limit plate structure, comprising: A shifter welding part (4), which is installed inside the housing (6) and is used for shifting gears; It is characterized by further comprising: The dial head welded part (4) is connected to the rocker arm welded part (1) via an elastic cylindrical pin (3), and the bottom of the rocker arm welded part (1) and the limit plate (2) penetrate through; The limiting plate (2) is connected to the housing (6) via a hexagonal bolt (7).

2. A double-acting limit plate structure according to claim 1, characterized in that: The dial head welded part (4) is connected to the inside of the housing (6) via an O-shaped rubber sealing ring (5). The O-shaped rubber sealing ring (5) is located on the shaft section of the dial head welded part (4), and the O-shaped rubber sealing ring (5) plays a sealing role.

3. The double-acting limit plate structure according to claim 1, characterized in that: The rocker arm welded component (1) is arranged in a detachable mounting position with the shift head welded component (4) via an elastic cylindrical pin (3), and the shift head welded component (4) is driven by rotating the rocker arm welded component (1) forward and backward to achieve a gear shifting action.

4. The double-acting limit plate structure according to claim 1, characterized in that: The limiting plate (2) and the shifting head welding part (4) are arranged to penetrate each other, and the connection end of the shifting head welding part (4) and the rocker arm welding part (1) is located on the left side of the limiting plate (2). The limiting plate (2) limits the shifting head welding part (4) from moving in the axial direction.

5. The double-acting limit plate structure according to claim 4, characterized in that: The diameter of the connecting end of the shifting head welded part (4) and the rocker arm welded part (1) is larger than the diameter of the shifting head welded part (4) on the right side of the limiting plate (2).

6. A double-acting limit plate structure according to claim 1 or 4, characterized in that: The limiting plate (2) is arranged in a "7" shape, and a hole groove is provided at the point where the "7" upper end of the limiting plate (2) and the rocker arm welded component (1) penetrate, and the hole groove limits the front and rear rotation angle of the rocker arm welded component (1).

7. The double-acting limit plate structure according to claim 1, characterized in that: A spring washer (8) is installed on the outside of the connection between the hexagonal head bolt (7) and the limiting plate (2).

8. The double-acting limit plate structure according to claim 1, characterized in that: The rocker arm welded component (1) comprises: a support plate (101), a fixing component (102) and a handheld component (103); the fixing component (102) is vertically mounted on the inner side of the support plate (101); and the end of the fixing component (102) is connected to the handheld component (103).

9. The double-acting limit plate structure according to claim 8, characterized in that: The handheld component (103) is spherically arranged, and the fixing component (102) and the dial welding component (4) are arranged in parallel.

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