Direct-connection four-wheel-drive connection structure with auxiliary installation function

Abstract

The utility model discloses a direct-connection four-wheel-drive connection structure with an auxiliary installation function, and relates to the technical field of machinery. A spline on a rotating wheel is connected with an external driving device to drive the rotating wheel to rotate, the rotating wheel rotates to drive two connecting rods to move, drive the two connecting rods to move in the direction of a guide long groove and drive a tooth plate to move, the tooth plate is meshed with a gear piece, and the gear piece is driven to rotate. The gear piece rotates to drive a limiting pin on a clamping limiting block to move in the direction of an arc-shaped guide groove, the clamping limiting block extends out, the clamping limiting block and a flange plate between the engine assembly and the gearbox make contact and extrude each other, then the connection between the engine assembly and the gearbox is ensured to be firm, and the reliability of the engine assembly is improved. And gaps caused by shaking are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a direct-connected four-wheel drive connection structure with an auxiliary installation function. Background Art

[0002] After searching, publication number CN213954270U discloses a direct-connected four-wheel drive micro-tiller gearbox, including a cast iron box, a transmission shaft, a second transmission shaft, a third transmission shaft, a forward and reverse shaft, a shift fork shaft, a clutch, a clutch shaft, a small bevel gear, a large bevel gear, a reverse shaft, gears of various levels and other components. One end of the clutch shaft is directly connected to the engine output shaft and the other end is installed with a small bevel gear. The small bevel gear and the large bevel gear are meshed to achieve a 90° shaft angle change. The large bevel gear is installed on a splined transmission shaft. The two sides of the large bevel gear are respectively installed with movable travel shaft triple teeth and rotary tillage shaft double teeth. The structure of the second transmission shaft and the third transmission shaft is half spline and half cylinder. The gear and the shaft on the driving side transmission line are splined, and the gear and the shaft on the rotary tillage side are connected by ball bearings. Therefore, driving and rotary tillage can be achieved on the same transmission shaft independently without interfering with each other.

[0003] However, it has certain defects. When connecting the power source to the four-wheel drive structure, due to the structural characteristics of the installation, a bolt structure is generally used for fixing. However, there may be gaps during installation or when used for a long time, affecting subsequent use. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a direct-connected four-wheel drive connection structure with an auxiliary installation function, which solves the problems raised by the background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a direct-connected four-wheel drive connection structure with an auxiliary installation function, including a gear box, a lower connecting shaft is fixedly arranged at the bottom of the gear box, and the bottom of the gear box is transmission-connected to a lower transmission frame, an engine assembly is fixedly arranged at the input end of the gear box, a side support rod is fixedly arranged on the side of the gear box close to the engine assembly, a bracket rod is fixedly arranged on the upper surface of the gear box, and an auxiliary installation connecting plate is connected to the connection between the gear box and the engine assembly.

[0006] Preferably, the auxiliary mounting connecting plate includes a mounting connecting plate body connected between the engine assembly and the gear box, a guide long groove is opened on the inner surface of the mounting connecting plate body, two movable long rods are slidably arranged inside the mounting connecting plate body through the guide long groove, a rotating wheel is rotatably arranged in the inner middle section of the mounting connecting plate body, two connecting rods are symmetrically rotatably arranged on the rotating wheel, the two connecting rods are respectively rotatably connected to the middle sections of the two movable long rods inside the mounting connecting plate body, a plurality of gear parts are rotatably arranged inside the mounting connecting plate body, tooth plates are fixedly arranged at both ends of the two movable long rods, a plurality of arc-shaped guide grooves are opened inside the mounting connecting plate body, a clamping limit block is fixedly arranged on the shaft end of each of the gear parts, and a limit pin is fixedly arranged on the surface of each of the clamping limit blocks.

[0007] Preferably, each of the tooth plates is meshed with a gear member rotating in the mounting connecting plate body.

[0008] Preferably, a limiting opening groove is provided on the surface of the mounting connection plate body, and the length of the limiting opening groove is greater than the sum of the lengths of the two clamping limiting blocks.

[0009] Preferably, the shaft end of the rotating wheel passes through the mounting connecting plate body and extends to the outside of the mounting connecting plate body, and a spline groove is provided on the outer end of the mounting connecting plate body.

[0010] Beneficial Effects

[0011] The utility model provides a direct-connected four-wheel drive connection structure with auxiliary installation function. Compared with the prior art, it has the following beneficial effects:

[0012] A direct-connected four-wheel drive connection structure with an auxiliary installation function is connected to an external driving device through a spline on a rotating wheel to drive the rotating wheel to rotate. The rotation of the rotating wheel drives two connecting rods to move, drives the two connecting rods to move along the direction of a guide long groove, drives the tooth plate to move, the tooth plate is meshed with the gear part, drives the gear part to rotate, and the rotation of the gear part drives the limit pin on the card-connected limit block to move along the direction of the arc-shaped guide groove, so that the card-connected limit block extends, and the card-connected limit block and the flange plate between the engine assembly and the gear box are contacted and squeezed, and then the connection between the engine assembly and the gear box is ensured to be tight without shaking and generating gaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the connection structure between the gearbox and the engine assembly of the utility model;

[0015] Figure 3 This is a schematic diagram of the auxiliary installation connection plate structure of the utility model.

[0016] In the figure: 1. bracket rod; 2. gear box; 3. connecting frame; 4. lower transmission frame; 5. lower connecting shaft; 6. side support rod; 7. engine assembly; 8. auxiliary installation connecting plate; 81. installation connecting plate body; 82. clamping limit block; 83. arc guide groove; 84. limit pin; 85. gear part; 86. tooth plate; 87. moving long rod; 88. guide long groove; 89. rotating wheel; 810. connecting rod. DETAILED DESCRIPTION

[0017] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0018] See also Figure 1-3 The utility model provides a technical solution: a direct-connected four-wheel drive connection structure with an auxiliary installation function, comprising a gear box 2, a lower connecting shaft 5 is fixedly arranged at the bottom of the gear box 2, and the bottom of the gear box 2 is transmission-connected to a lower transmission frame 4, an engine assembly 7 is fixedly arranged at the input end of the gear box 2, a side support rod 6 is fixedly arranged on the side of the gear box 2 close to the engine assembly 7, a bracket rod 1 is fixedly arranged on the upper surface of the gear box 2, and an auxiliary installation connecting plate 8 is connected to the connection between the gear box 2 and the engine assembly 7.

[0019] The auxiliary mounting connecting plate 8 includes a mounting connecting plate main body 81 connected between the engine assembly 7 and the gear box 2, and a guide long groove 88 is opened on the inner surface of the mounting connecting plate main body 81, and two movable long rods 87 are slidably arranged inside the mounting connecting plate main body 81 through the guide long groove 88, and a rotating wheel 89 is rotatably arranged in the middle section of the interior of the mounting connecting plate main body 81, and two connecting rods 810 are symmetrically rotatably arranged on the rotating wheel 89, and the two connecting rods 810 are respectively rotatably connected to the middle section position of the two movable long rods 87 inside the mounting connecting plate main body 81, and a plurality of gear parts 85 are rotatably arranged inside the mounting connecting plate main body 81, and tooth plates 86 are fixedly arranged at both ends of the two movable long rods 87, and a plurality of arc-shaped guide grooves 83 are opened inside the mounting connecting plate main body 81, and a clamping limit block 82 is fixedly arranged on the shaft end of each of the gear parts 85, and a limit pin 84 is fixedly arranged on the surface of each of the clamping limit blocks 82.

[0020] Each of the tooth plates 86 is meshed with a gear member 85 rotating inside the mounting connecting plate body 81. A limiting opening groove is provided on the surface of the mounting connecting plate body 81, and the length of the limiting opening groove is greater than the sum of the lengths of the two clamping limiting blocks 82. The axial end of the rotating wheel 89 passes through the mounting connecting plate body 81 and extends to the outside of the mounting connecting plate body 81, and a spline groove is provided on the outer end of the mounting connecting plate body 81.

[0021] During use, when assembling the various parts, the engine assembly 7 and the gear box 2 are auxiliary aligned and installed before installation through the auxiliary installation connecting plate 8, and the external driving device is connected through the spline on the rotating wheel 89 to drive the rotating wheel 89 to rotate. The rotation of the rotating wheel 89 drives the two connecting rods 810 to move, and drives the two connecting rods 810 to move along the direction of the guide long groove 88, drives the tooth plate 86 to move, and the tooth plate 86 is meshed with the gear part 85, driving the gear part 85 to rotate. The rotation of the gear part 85 drives the limit pin 84 on the clamping limit block 82 to move along the direction of the arc guide groove 83, so that the clamping limit block 82 extends, and the clamping limit block 82 and the flange plate between the engine assembly 7 and the gear box 2 are contacted and squeezed, and then the connection between the engine assembly 7 and the gear box 2 is ensured to be tight without shaking and causing gaps.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A direct-connected four-wheel drive connection structure with auxiliary installation function, comprising a gear box (2), characterized in that: A lower connecting shaft (5) is fixedly arranged at the bottom of the gear box (2), and a lower transmission frame (4) is transmission-connected to the bottom of the gear box (2); an engine assembly (7) is fixedly arranged at the input end of the gear box (2); a side support rod (6) is fixedly arranged on a side of the gear box (2) close to the engine assembly (7); a support rod (1) is fixedly arranged on the upper surface of the gear box (2); and an auxiliary mounting connection plate (8) is connected to the connection between the gear box (2) and the engine assembly (7).

2. A direct-connected four-wheel drive connection structure with auxiliary installation function according to claim 1, characterized in that: The auxiliary mounting connecting plate (8) comprises a mounting connecting plate body (81) connected between the engine assembly (7) and the gear box (2); a guide long groove (88) is provided on the inner surface of the mounting connecting plate body (81); two movable long rods (87) are slidably arranged inside the mounting connecting plate body (81) through the guide long groove (88); a rotating wheel (89) is rotatably arranged in the middle section of the mounting connecting plate body (81); two connecting rods (810) are symmetrically rotatably arranged on the rotating wheel (89); the two connecting rods (810) are The mounting connecting plate body (81) is rotatably connected to the middle sections of the two movable long rods (87) inside the mounting connecting plate body (81); a plurality of gear members (85) are rotatably arranged inside the mounting connecting plate body (81); toothed plates (86) are fixedly arranged at both ends of the two movable long rods (87); a plurality of arc-shaped guide grooves (83) are opened inside the mounting connecting plate body (81); a clamping limit block (82) is fixedly arranged on the axial end of each of the gear members (85); and a limit pin (84) is fixedly arranged on the surface of each of the clamping limit blocks (82).

3. A direct-connected four-wheel drive connection structure with auxiliary installation function according to claim 2, characterized in that: Each tooth plate (86) is meshed with a gear member (85) rotating in the mounting connecting plate body (81).

4. The direct-connected four-wheel drive connection structure with auxiliary installation function according to claim 2, characterized in that: A limiting opening groove is provided on the surface of the mounting connection plate body (81), and the length of the limiting opening groove is greater than the sum of the lengths of the two clamping limiting blocks (82).

5. The direct-connected four-wheel drive connection structure with auxiliary installation function according to claim 2, characterized in that: The shaft end of the rotating wheel (89) passes through the mounting connecting plate body (81) and extends to the outside of the mounting connecting plate body (81), and a spline groove is provided on the outer end of the mounting connecting plate body (81).

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