Structure for operating accelerator through pull rod and tractor

Abstract

The utility model relates to a structure for controlling an accelerator through a pull rod and a tractor, and belongs to the field of tractor accelerator control. Comprising a hand accelerator mechanism, a foot accelerator mechanism, three first rotating shafts, a second rotating shaft, an engine, a flameout pull rod mechanism and a mounting frame, the first rotating shaft comprises a first fixing support, a first rotating shaft and a first rotating shaft rocker arm, and the first rotating shaft rocker arm is of a plate-shaped structure installed on the outer wall of the first rotating shaft; the second rotating shaft comprises a second fixing support, a second rotating shaft, a rotating bearing, two second rotating shaft rocker arms and a transmission rocker arm, the second fixing support comprises a second fixing support bottom plate and two second fixing support supporting plates, and positioning clamping grooves are formed in the two ends of the second fixing support bottom plate; positioning clamping blocks are arranged at the bottom ends of the two second fixing support supporting plates and installed in the positioning clamping grooves in a matched mode. According to the utility model, the situations of clamping stagnation and unsmoothness during power transmission can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of tractor throttle operation, and more particularly to a structure and tractor with a lever for operating the throttle. Background Technology

[0002] Tractors, as important mechanized equipment in agricultural production, are increasingly widely used in today's trend of mechanized agricultural planting. The throttle cable control is a classic control structure for mechanical pump engines. On a tractor, the hand throttle and foot throttle are connected to the engine throttle via a cable. Simply operating the hand or foot throttle allows the throttle to be adjusted by pulling the rocker arm via the cable. However, in the special conditions of paddy field operations, the throttle cable structure is easily infiltrated by mud and water, leading to malfunctions in throttle control.

[0003] Patent 202422573824.X describes a structure for controlling the throttle with a lever. This patent directly transmits the driver's control force to the throttle by setting a throttle lever, which facilitates direct power transmission, improves structural strength, durability, and environmental adaptability, and simplifies daily maintenance and adjustment. However, during actual production and assembly, technicians discovered the following problems with the first and second rotating shafts and the throttle lever in this patent:

[0004] 1) such as Figure 1 As shown, when the two first rotating shaft rocker arms 100 on the existing first rotating shaft are welded to the first rotating shaft 200, if there is a deviation in the welding position with the first rotating shaft 200, the angle between the two first rotating shaft rocker arms 100 will be deviated, and the power transmission will be ahead or behind. In addition to the manufacturing tolerances of the two first rotating shaft rocker arms 100, there is also a distance between the two first rotating shaft rocker arms 100 in the axial direction of the first rotating shaft 200. During power transmission, there will be problems such as jamming, lack of smoothness, or even changes in the transmission ratio.

[0005] 2) such as Figure 2 As shown, the existing second fixed bracket 300 in the second rotating shaft is an integral U-shaped structure obtained by bending sheet metal. After bending, the holes on the second fixed bracket 300 for assembling the two rotating bearings 400 may be misaligned due to bending errors. This makes it difficult to assemble the rotating bearings 400 and the second rotating shaft 500, or causes rotational jamming after assembly. In addition, there may be rotational jamming and non-smoothness between the two rotating bearings 400, making it difficult for the second rotating shaft as a whole to transmit power smoothly.

[0006] 3) such as Figure 3As shown, when the throttle pull rod is connected with the rotating shaft rocker, only through a single baffle 600 and cooperating with a limiting pin 700, the limiting of the throttle pull rod can only be realized in one direction, and in the power transmission process, the throttle pull rod can be reversely dislocated, which is not conducive to the stability during power transmission. Content of the utility model

[0007] The technical problem to be solved by the utility model is to provide a structure for controlling the throttle by a pull rod and a tractor to solve the above problems.

[0008] The technical scheme for solving the above technical problem is as follows: a structure for controlling the throttle by a pull rod, comprising: a hand throttle mechanism, a foot throttle mechanism, three first rotating shafts, a second rotating shaft, an engine, a flameout pull rod mechanism and a mounting frame; the first rotating shafts and the second rotating shaft are mounted on the mounting frame, the hand throttle mechanism and the foot throttle mechanism are connected with two first rotating shafts through pull rod assemblies respectively, and two first rotating shafts are connected with the second rotating shaft through the pull rod assemblies, the second rotating shaft and the third first rotating shaft are connected through the pull rod assembly, the third first rotating shaft and the engine are connected through the pull rod assembly, and the flameout pull rod mechanism and the engine are connected through the pull rod assembly; the first rotating shaft comprises a first fixed support, a first rotating shaft and a first rotating shaft rocker, the first fixed support is a U-shaped plate structure mounted on the mounting frame, the first rotating shaft is arranged in the first fixed support, both ends of the first rotating shaft are rotatably mounted on the inner walls on both sides of the first fixed support, and the first rotating shaft rocker is a plate structure mounted on the outer wall of the first rotating shaft; the second rotating shaft comprises a second fixed support, a second rotating shaft, a rotating bearing, two second rotating shaft rockers and a transmission rocker, the second fixed support comprises a second fixed support bottom plate and two second fixed support plates, the second fixed support bottom plate is mounted on the mounting frame, both ends of the second fixed support bottom plate are provided with positioning clamping grooves, the bottom ends of the two second fixed support plates are provided with positioning clamping blocks, rotating bearing through holes are formed in the two second fixed support plates, the positioning clamping blocks are fitted into the positioning clamping grooves, the rotating bearing is sleeved on the second rotating shaft, the rotating bearing is fitted through the rotating bearing through holes, the two second rotating shaft rockers are arranged side by side on one end side wall of the second rotating shaft, and the transmission rocker is arranged on the other end side wall of the second rotating shaft.

[0009] The utility model discloses beneficial effect is: compared with prior art in the first rotation axis welds two first rotation axis rocker arm and carries out power transmission's technical scheme, the utility model discloses two dispersed first rotation axis rocker arm on the first rotation axis combines as a first rotation axis rocker arm and welds on the rotation axis, can effectively alleviate two first rotation axis rocker arm and the first rotation axis side wall welding when existing movement jam, not fluent, even change the problem of transmission ratio, through cancelling the distance of two first rotation axis rocker arm along the first rotation axis direction and cancelling the moment of force, make stress more concentrated, also simplify the welding step simultaneously, compared with prior art through the integral type U of bending formation's second fixed support, the utility model discloses the cooperation of positioning block and positioning slot is favorable to make two positioning block on the rotation bearing perforation have better concentricity and the perpendicularity relative to second fixed support bottom plate, thereby make rotation bearing and second rotation axis assembly and rotate more smoothly, compared with prior art through two rotation bearing synchronous support second rotation axis rotation's technical scheme, the utility model optimizes integral type long rotation bearing, can effectively optimize the rotation jam problem of rotation bearing, make rotation bearing rotate more smoothly, also reduce the step on assembly, improve assembly efficiency.

[0010] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0011] Further, the hand throttle rod and the foot throttle rod are composed of a first hand throttle transmission rod and a second hand throttle transmission rod, one end of the first hand throttle transmission rod and one end of the second hand throttle transmission rod are connected to two ends of the first rotation axis rocker arm in the first rotation axis, and the foot throttle rod is composed of a first foot throttle transmission rod and a second foot throttle transmission rod, one end of the first foot throttle transmission rod and one end of the second foot throttle transmission rod are connected to two ends of the first rotation axis rocker arm in the second rotation axis.

[0012] The beneficial effects of the above further scheme are that the first hand throttle transmission rod and the second hand throttle transmission rod are conducive to transmitting the power of the hand throttle mechanism to the second rotation axis through the first rotation axis rocker arm, and the first foot throttle transmission rod and the second foot throttle transmission rod are conducive to transmitting the power of the foot throttle mechanism to the second rotation axis through the first rotation axis rocker arm.

[0013] Further, the hand throttle mechanism includes a hand throttle control rod and a hand throttle rod rocker arm, and two ends of the hand throttle rod rocker arm are connected to the hand throttle control rod and one end of the first hand throttle transmission rod away from the first rotation axis rocker arm, respectively.

[0014] The beneficial effect of the further scheme is that the hand throttle control rod is driven to rotate by rotating the hand throttle control rod, thereby driving the first hand throttle transmission rod and the first rotating shaft connected thereto to rotate, thereby achieving power transmission.

[0015] Further, the foot throttle mechanism comprises a foot throttle pedal, a foot throttle pedal rocker arm, a rotating hub and a foot throttle rod rocker arm, the foot throttle pedal rocker arm and the foot throttle rod rocker arm are arranged on the outer wall of the rotating hub, the foot throttle pedal is installed at one end of the foot throttle pedal rocker arm away from the rotating hub, and one end of the foot throttle rod rocker arm away from the rotating hub is connected with one end of the first foot throttle transmission rod away from the first rotating shaft rocker arm.

[0016] The beneficial effect of the further scheme is that the foot throttle pedal is driven to rotate by stepping on the foot throttle pedal, thereby driving the foot throttle rod rocker arm and the first foot throttle transmission rod and the first rotating shaft connected therewith in sequence to rotate, thereby achieving power transmission.

[0017] Further, the second rotating shaft rocker arm is provided with a rocker arm sliding groove, the rocker arm sliding groove is an arc-shaped through hole, and one end of the second hand throttle transmission rod away from the first rotating shaft rocker arm and one end of the second foot throttle transmission rod away from the first rotating shaft rocker arm are respectively threaded through the rocker arm sliding grooves on the two second rotating shaft rocker arms after being bent.

[0018] The beneficial effect of the further scheme is that when one of the second hand throttle transmission rod and the second foot throttle transmission rod drives the second rotating shaft rocker arm to rotate, the other of the second hand throttle transmission rod and the second foot throttle transmission rod can slide in the rocker arm sliding groove, so that the other of the second hand throttle transmission rod and the second foot throttle transmission rod cannot realize power transmission because it does not have a force point on the second rotating shaft rocker arm in the interval of the rocker arm sliding groove, thereby ensuring that the rod conflict of the hand throttle mechanism and the foot throttle mechanism is avoided when they are controlled, so that only the hand throttle mechanism or the foot throttle mechanism can control the throttle at the same time.

[0019] Further, the rod assembly further comprises a rotating shaft transmission rod and an engine throttle rod, both ends of the rotating shaft transmission rod are respectively connected with the transmission rocker arm and one end of the first rotating shaft rocker arm in the third first rotating shaft, and both ends of the engine throttle rod are respectively connected with the other end of the first rotating shaft rocker arm in the third first rotating shaft and the throttle rocker arm of the engine.

[0020] The beneficial effect of the further scheme is that the rotating shaft transmission rod is conducive to transmitting the power generated by the rotation of the second rotating shaft to the third first rotating shaft, thereby driving the engine throttle rod and the throttle rocker arm of the engine connected therewith to rotate, and finally realizing the control of the engine throttle.

[0021] Further, the pull rod assembly is provided with a plurality of baffle plates, and the plurality of baffle plates are respectively sleeved on both sides of the bent end of the second hand throttle transmission pull rod passing through the rocker arm sliding groove, both sides of the bent end of the second foot throttle transmission pull rod passing through the rocker arm sliding groove, both sides of the first hand throttle transmission pull rod connected with the first rotating shaft rocker arm, both sides of the second hand throttle transmission pull rod connected with the first rotating shaft rocker arm, both sides of the first foot throttle transmission pull rod connected with the first rotating shaft rocker arm, both sides of the second foot throttle transmission pull rod connected with the first rotating shaft rocker arm, both sides of the rotating shaft transmission pull rod connected with the transmission rocker arm, both sides of the rotating shaft transmission pull rod connected with the first rotating shaft rocker arm, and both sides of the engine throttle pull rod connected with the first rotating shaft rocker arm.

[0022] The beneficial effect of the above further scheme is that the baffle plates are sleeved on both sides of the connection between the pull rod assembly and the first rotating shaft rocker arm, the transmission rocker arm, and the second rotating shaft rocker arm, which is beneficial to limit the pull rod assembly between two baffle plates during power transmission, avoids the pull rod assembly from moving, and thus ensures the stability during power transmission.

[0023] Further, the pull rod assembly is provided with a plurality of limiting pins, and the plurality of limiting pins are respectively detachably inserted into one side of the first hand throttle transmission pull rod connected with the first rotating shaft rocker arm, one side of the second hand throttle transmission pull rod connected with the first rotating shaft rocker arm, one side of the bent end of the second hand throttle transmission pull rod passing through the rocker arm sliding groove, one side of the first foot throttle transmission pull rod connected with the first rotating shaft rocker arm, one side of the second foot throttle transmission pull rod connected with the first rotating shaft rocker arm, one side of the bent end of the second foot throttle transmission pull rod passing through the rocker arm sliding groove, one side of the rotating shaft transmission pull rod connected with the transmission rocker arm, one side of the rotating shaft transmission pull rod connected with the first rotating shaft rocker arm, and one side of the engine throttle pull rod connected with the first rotating shaft rocker arm.

[0024] The beneficial effect of the above further scheme is that the limiting pins are beneficial to further limit the pull rod assembly and avoid the pull rod assembly from moving.

[0025] Further, the flameout pull rod mechanism comprises a first flameout transmission pull rod and a second flameout transmission pull rod, and two ends of the second flameout transmission pull rod are respectively connected with the first flameout transmission pull rod and the flameout rocker arm of the engine.

[0026] The beneficial effect of the above further scheme is that the first flameout transmission pull rod and the second flameout transmission pull rod are beneficial to realize the flameout of the engine throttle through the pull rod.

[0027] A tractor comprises the structure for operating the throttle by the pull rod. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic view of a first rotating shaft in the prior art;

[0029] Figure 2 is a structural schematic view of a second rotating shaft in the prior art;

[0030] Figure 3 is a structural schematic view of a connection between a throttle rod and a rotating shaft rocker arm in the prior art;

[0031] Figure 4 is a side view of an overall structure according to an embodiment of the present application;

[0032] Figure 5 is a front view of an overall structure according to an embodiment of the present application;

[0033] Figure 6 is a structural schematic view of a hand throttle mechanism according to an embodiment of the present application;

[0034] Figure 7 is a structural schematic view of a foot throttle mechanism according to an embodiment of the present application;

[0035] Figure 8 is a structural schematic view of a first rotating shaft according to an embodiment of the present application;

[0036] Figure 9 is a structural schematic view of a second rotating shaft according to an embodiment of the present application;

[0037] Figure 10 is an exploded view of a second fixing support according to an embodiment of the present application;

[0038] Figure 11 is a structural schematic view of a connection between a throttle rod and a rotating shaft rocker arm according to an embodiment of the present application.

[0039] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0040] 1. Hand throttle mechanism; 2. Foot throttle mechanism; 3. First rotating shaft; 4. Second rotating shaft; 5. Engine; 6. Engine stop lever mechanism; 7. Mounting bracket; 11. Hand throttle lever; 12. Foot throttle lever; 13. Rotary shaft transmission lever; 14. Engine throttle lever; 15. Baffle; 16. Limit pin; 31. First fixed bracket; 32. First rotating shaft; 33. First rotating shaft rocker arm; 41. Second fixed bracket; 42. Second rotating shaft; 43. Rotary bearing; 44. Second rotating shaft rocker arm; 45. Transmission rocker arm; 61. First engine stop transmission lever; 62. Second ignition stop lever; 101, hand throttle control lever; 102, hand throttle lever rocker arm; 201, foot accelerator pedal; 202, foot accelerator pedal rocker arm; 203, hub; 204, foot accelerator lever rocker arm; 111, first hand throttle transmission lever; 112, second hand throttle transmission lever; 121, first foot accelerator transmission lever; 122, second foot accelerator transmission lever; 411, second fixed bracket base plate; 412, second fixed bracket support plate; 413, positioning slot; 414, positioning block; 415, rotating bearing through hole; 441, rocker arm slide groove. Detailed Implementation

[0041] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0042] like Figures 4 to 11 As shown, a structure for operating the throttle with a lever includes: a hand throttle mechanism 1, a foot throttle mechanism 2, three first rotating shafts 3, a second rotating shaft 4, an engine 5, an engine shutdown lever mechanism 6, and a mounting bracket 7; the first rotating shafts 3 and the second rotating shafts 4 are mounted on the mounting bracket 7; the hand throttle mechanism 1 and the foot throttle mechanism 2 are respectively connected to the two first rotating shafts 3 via lever assemblies, and both first rotating shafts 3 are connected to the second rotating shafts 4 via lever assemblies; the second rotating shaft 4 and the third first rotating shaft 3 are connected via lever assemblies; the third first rotating shaft 3 and the engine 5 are connected via lever assemblies; and the engine shutdown lever mechanism 6 and the engine 5 are connected via lever assemblies.

[0043] The first rotating shaft 3 includes: a first fixed bracket 31, a first rotating shaft 32, and a first rotating shaft rocker arm 33. The first fixed bracket 31 is a U-shaped plate structure mounted on the mounting frame 7. The first rotating shaft 32 is disposed inside the first fixed bracket 31. The two ends of the first rotating shaft 32 are rotatably mounted on the inner walls of the two sides of the first fixed bracket 31. The first rotating shaft rocker arm 33 is a plate structure mounted on the outer wall of the first rotating shaft 32.

[0044] The second rotating shaft 4 comprises a second fixed support 41, a second rotating shaft 42, a rotating bearing 43, two second rotating shaft rocker arms 44 and a transmission rocker arm 45, the second fixed support 41 comprises a second fixed support bottom plate 411 and two second fixed support side plates 412, the second fixed support bottom plate 411 is installed on the mounting frame 7, both ends of the second fixed support bottom plate 411 are provided with positioning clamping grooves 413, the bottom ends of the two second fixed support side plates 412 are provided with positioning clamping blocks 414, rotating bearing through holes 415 are formed in the two second fixed support side plates 412, the positioning clamping blocks 414 are adapted to be installed in the positioning clamping grooves 413, the rotating bearing 43 is sleeved on the second rotating shaft 42, the rotating bearing 43 is adapted to pass through the rotating bearing through holes 415, the two second rotating shaft rocker arms 44 are arranged side by side on one end side wall of the second rotating shaft 42, and the transmission rocker arm 45 is arranged on the other end side wall of the second rotating shaft 42.

[0045] It should be noted that, in the technical scheme of the utility model, the two first rotating shafts 3 connected with the pull rod assembly and the second rotating shaft 4 are respectively connected with the hand throttle mechanism 1 and the foot throttle mechanism 2 through the pull rod assembly.

[0046] When the rotating bearing 43 is adapted to pass through the rotating bearing through holes 415, the second fixed support side plates 412 are in interference fit connection with the outer rings of the rotating bearing 43.

[0047] The utility model discloses the beneficial effects are: compared with the technical scheme of welding two first rotating shaft rocker arms on the first rotating shaft for power transmission in the prior art, the utility model combines two dispersed first rotating shaft rocker arms on the first rotating shaft into a first rotating shaft rocker arm welded on the rotating shaft, can effectively alleviate the movement jam, unsmooth, even change the transmission ratio problem existing when welding two first rotating shaft rocker arms and the first rotating shaft side wall, cancel the distance of two first rotating shaft rocker arms along the first rotating shaft direction and cancel the torque, make stress more concentrated, also simplify the welding step simultaneously, compared with the integral type U-shaped second fixed support formed by bending in the prior art, the utility model is through the cooperation of positioning clamping block and positioning clamping groove, is favorable to make the rotating bearing through hole on two positioning clamping blocks have better concentricity and perpendicularity relative to the second fixed support bottom plate, thereby making the rotating bearing and the second rotating shaft more smooth when assembling and rotating, compared with the technical scheme that two rotating bearings synchronously support the rotation of the second rotating shaft in the prior art, the utility model optimizes the integral type long rotating bearing, can effectively optimize the rotating jam problem of the rotating bearing, makes the rotating bearing rotate more smoothly, also reduces the step on assembling, improves the assembling efficiency.

[0048] Preferably, as shown in Figure 4 and Figure 5 The pull rod assembly includes a hand throttle pull rod 11 and a foot throttle pull rod 12; the hand throttle pull rod 11 is composed of a first hand throttle transmission pull rod 111 and a second hand throttle transmission pull rod 112, one end of the first hand throttle transmission pull rod 111 and one end of the second hand throttle transmission pull rod 112 are connected with two ends of the first shaft rocker arm 33 in the first first shaft 3 respectively; the foot throttle pull rod 12 is composed of a first foot throttle transmission pull rod 121 and a second foot throttle transmission pull rod 122, one end of the first foot throttle transmission pull rod 121 and one end of the second foot throttle transmission pull rod 122 are connected with two ends of the first shaft rocker arm 33 in the second first shaft 3 respectively.

[0049] The beneficial effects of the above preferred scheme are: the first hand throttle transmission pull rod and the second hand throttle transmission pull rod are conducive to transmitting the power of the hand throttle mechanism to the second shaft through the first shaft rocker arm; the first foot throttle transmission pull rod and the second foot throttle transmission pull rod are conducive to transmitting the power of the foot throttle mechanism to the second shaft through the first shaft rocker arm.

[0050] Preferably, as shown in Figure 4 and Figure 6 The hand throttle mechanism 1 includes a hand throttle control rod 101 and a hand throttle pull rod rocker arm 102, two ends of the hand throttle pull rod rocker arm 102 are connected with the hand throttle control rod 101 and one end of the first hand throttle transmission pull rod 111 away from the first shaft rocker arm 33 respectively.

[0051] The beneficial effects of the above preferred scheme are: the hand throttle control rod is conducive to driving the hand throttle pull rod rocker arm to rotate by rotating, and then driving the first hand throttle transmission pull rod and the subsequent connected first shaft to rotate, realizing power transmission.

[0052] Preferably, as shown in Figure 4 , Figure 5 and Figure 7 The foot throttle mechanism 2 includes a foot throttle pedal 201, a foot throttle pedal rocker arm 202, a hub 203 and a foot throttle pull rod rocker arm 204, the foot throttle pedal rocker arm 202 and the foot throttle pull rod rocker arm 204 are both arranged on the outer wall of the hub 203, the foot throttle pedal 201 is installed at one end of the foot throttle pedal rocker arm 202 away from the hub 203, and one end of the foot throttle pull rod rocker arm 204 away from the hub 203 is connected with one end of the first foot throttle transmission pull rod 121 away from the first shaft rocker arm 33.

[0053] The beneficial effect of the above preferred scheme is that stepping on the foot throttle pedal is conducive to driving the hub to rotate by the foot throttle pedal rocker arm, and then driving the foot throttle rod rocker arm and the first foot throttle transmission rod and the first shaft to rotate in sequence, so as to realize power transmission.

[0054] Preferably, as shown in Figure 11 The second shaft rocker arm 44 is provided with a rocker arm sliding groove 441, which is an arc-shaped through hole. The second hand throttle transmission rod 112 and the second foot throttle transmission rod 122 are respectively bent and then pass through the rocker arm sliding groove 441 of the second shaft rocker arm 44.

[0055] The beneficial effect of the above preferred scheme is that when one of the second hand throttle transmission rod and the second foot throttle transmission rod drives the second shaft rocker arm to rotate, the other one of the second hand throttle transmission rod and the second foot throttle transmission rod can slide in the rocker arm sliding groove, so that the other one of the second hand throttle transmission rod and the second foot throttle transmission rod cannot realize power transmission because it does not have a force point in the interval of the rocker arm sliding groove, thereby ensuring that the hand throttle mechanism and the foot throttle mechanism cannot be controlled at the same time, and only one of them can be controlled at the same time.

[0056] Preferably, as shown in Figure 5 The rod assembly further includes a shaft transmission rod 13 and an engine throttle rod 14. The two ends of the shaft transmission rod 13 are respectively connected with the transmission rocker arm 45 and one end of the first shaft rocker arm 33 of the third first shaft 3. The two ends of the engine throttle rod 14 are respectively connected with the other end of the first shaft rocker arm 33 of the third first shaft 3 and the throttle rocker arm of the engine 5.

[0057] The beneficial effect of the above preferred scheme is that the shaft transmission rod is conducive to transmitting the power generated by the rotation of the second shaft to the third first shaft, thereby driving the engine throttle rod and the throttle rocker arm of the engine connected thereto to rotate, and finally realizing the control of the engine throttle.

[0058] Preferably, as shown in Figure 11As shown, the plurality of baffle plates 15 are respectively sleeved on both sides of the bent end of the second hand throttle transmission pull rod 112 passing through the rocker arm chute 441, both sides of the bent end of the second foot throttle transmission pull rod 122 passing through the rocker arm chute 441, both sides of the first hand throttle transmission pull rod 111 connected with the first pivot rocker arm 33, both sides of the second hand throttle transmission pull rod 112 connected with the first pivot rocker arm 33, both sides of the first foot throttle transmission pull rod 121 connected with the first pivot rocker arm 33, both sides of the second foot throttle transmission pull rod 122 connected with the first pivot rocker arm 33, both sides of the pivot transmission pull rod 13 connected with the transmission rocker arm 45, both sides of the pivot transmission pull rod 13 connected with the first pivot rocker arm 33 and both sides of the engine throttle pull rod 14 connected with the first pivot rocker arm 33 in the pull rod assembly.

[0059] The beneficial effects of the above preferred scheme are that the baffle plates are sleeved on both sides of the connection between the pull rod assembly and the first pivot rocker arm, the transmission rocker arm and the second pivot rocker arm, which is beneficial to limiting the pull rod assembly between two baffle plates during power transmission, avoiding the pull rod assembly from moving, and thus ensuring the stability during power transmission.

[0060] Preferably, as shown in the drawings, Figure 11 As shown, the plurality of limit pins 16 are respectively detachably inserted on one side of the first hand throttle transmission pull rod 111 connected with the first pivot rocker arm 33, one side of the second hand throttle transmission pull rod 112 connected with the first pivot rocker arm 33, one side of the bent end of the second hand throttle transmission pull rod 112 passing through the rocker arm chute 441, one side of the first foot throttle transmission pull rod 121 connected with the first pivot rocker arm 33, one side of the second foot throttle transmission pull rod 122 connected with the first pivot rocker arm 33, one side of the bent end of the second foot throttle transmission pull rod 122 passing through the rocker arm chute 441, one side of the pivot transmission pull rod 13 connected with the transmission rocker arm 45, one side of the pivot transmission pull rod 13 connected with the first pivot rocker arm 33 and one side of the engine throttle pull rod 14 connected with the first pivot rocker arm 33 in the pull rod assembly.

[0061] It should be noted that: Figure 11 Only the position of the baffle plate 15 and the limit pin 16 when the second hand throttle transmission pull rod 112 and the second foot throttle transmission pull rod 122 are assembled and connected with the rocker arm chute 441 is shown, and in the technical scheme of the present application, as long as the connection between the pull rod assembly and the rocker arm is involved, the installation positions of the baffle plate 15 and the limit pin 16 are similar. Figure 11

[0062] ​The limiting pin is beneficial to further limiting the pull rod assembly and avoiding the pull rod assembly from moving.

[0063] Preferably, as shown in Figure 4 and Figure 5 The flameout pull rod mechanism 6 includes a first flameout transmission pull rod 61 and a second flameout transmission pull rod 62, and two ends of the second flameout transmission pull rod 62 are connected with the first flameout transmission pull rod 61 and the flameout rocker arm of the engine 5 respectively.

[0064] The first flameout transmission pull rod and the second flameout transmission pull rod are beneficial to realizing the flameout of the engine throttle through the pull rod.

[0065] A tractor includes the structure for operating the throttle by the pull rod.

[0066] The working process of the utility model is introduced as follows:

[0067] As shown in Figures 4 to 11 The throttle of the engine 5 is operated through the hand throttle mechanism 1: when the hand throttle is increased, the hand throttle operating rod 101 rotates clockwise, the hand throttle pull rod rocker arm 102 rotates clockwise, the hand throttle pull rod rocker arm 102 rotates clockwise and drives the first hand throttle transmission pull rod 111 to move leftward as a whole, the first hand throttle transmission pull rod 111 moves leftward and drives the first first rotating shaft 3 to rotate counterclockwise, the first first rotating shaft 3 rotates counterclockwise and drives the second hand throttle transmission pull rod 112 to move downward, the second hand throttle transmission pull rod 112 moves downward and drives the second rotating shaft 4 to rotate counterclockwise, the second rotating shaft 4 rotates counterclockwise and drives the rotating shaft transmission pull rod 13 to move downward, the rotating shaft transmission pull rod 13 moves downward and drives the third first rotating shaft 3 to rotate counterclockwise, the third first rotating shaft 3 rotates counterclockwise and drives the engine throttle pull rod 14 to move rightward, the engine throttle pull rod 14 moves rightward and drives the throttle rocker arm of the engine 5 to rotate clockwise, thereby achieving the effect of controlling the engine throttle.

[0068] The throttle of the engine 5 is controlled by the foot throttle mechanism 2: when the foot throttle is increased, the foot throttle rod rocker arm 204 rotates clockwise, the first foot throttle transmission rod 121 moves right, the first foot throttle transmission rod 121 moves right, the second first rotating shaft 3 moves counterclockwise, the second foot throttle transmission rod 122 moves down, the second foot throttle transmission rod 122 moves down, the second rotating shaft 4 moves counterclockwise, the rotating shaft transmission rod 13 moves down, the third first rotating shaft 3 moves counterclockwise, the engine throttle rod 14 moves right, the engine throttle rod 14 moves right, the throttle rocker arm of the engine 5 rotates clockwise, thereby achieving the effect of controlling the engine throttle.

[0069] The principle of flameout control: when the first flameout transmission rod 61 is pulled, the first flameout transmission rod 61 drives the second flameout transmission rod 62 to displace, the second flameout transmission rod 62 drives the flameout rocker arm of the engine 5 to displace, thereby achieving the effect of controlling the engine flameout.

[0070] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0071] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0072] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element internals or the interaction of two elements, unless another definite limitation.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0073] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly contacted through intermediate medium.Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than that of the second feature.The first feature "under", "below" and "on" the second feature can be that the first feature is directly below or obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than that of the second feature.

[0074] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0075] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model.The ordinary skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.

Claims

1. A structure for operating a throttle with a lever, characterized in that, include: The system comprises a hand throttle mechanism (1), a foot throttle mechanism (2), three first rotating shafts (3), a second rotating shaft (4), an engine (5), an engine stop lever mechanism (6), and a mounting bracket (7). The first rotating shafts (3) and the second rotating shafts (4) are mounted on the mounting bracket (7). The hand throttle mechanism (1) and the foot throttle mechanism (2) are respectively connected to the two first rotating shafts (3) via a tie rod assembly. Both first rotating shafts (3) are connected to the second rotating shafts (4) via the tie rod assembly. The second rotating shaft (4) and the third first rotating shaft (3) are connected via the tie rod assembly. The third first rotating shaft (3) and the engine (5) are connected via the tie rod assembly. The engine stop lever mechanism (6) and the engine (5) are connected via the tie rod assembly. The first rotating shaft (3) includes: a first fixed bracket (31), a first rotating shaft (32) and a first rotating shaft rocker arm (33). The first fixed bracket (31) is a U-shaped plate structure installed on the mounting bracket (7). The first rotating shaft (32) is disposed inside the first fixed bracket (31). The two ends of the first rotating shaft (32) are rotatably installed on the inner walls of the two sides of the first fixed bracket (31). The first rotating shaft rocker arm (33) is a plate structure installed on the outer wall of the first rotating shaft (32). The second rotating shaft (4) includes: a second fixed bracket (41), a second rotating shaft (42), a rotating bearing (43), two second rotating shaft rocker arms (44), and a transmission rocker arm (45). The second fixed bracket (41) includes a second fixed bracket base plate (411) and two second fixed bracket support plates (412). The second fixed bracket base plate (411) is mounted on the mounting frame (7). Both ends of the second fixed bracket base plate (411) are provided with positioning slots (413). The bottom ends of the two second fixed bracket support plates (412) are provided with positioning slots (413). The positioning block (414) and the two second fixed bracket support plates (412) are each provided with a rotating bearing through hole (415). The positioning block (414) is adapted to be installed in the positioning slot (413). The rotating bearing (43) is sleeved on the second rotating shaft (42). The rotating bearing (43) is adapted to pass through the rotating bearing through hole (415). The two second rotating shaft rocker arms (44) are arranged side by side on one end side wall of the second rotating shaft (42). The transmission rocker arm (45) is arranged on the other end side wall of the second rotating shaft (42).

2. The structure for operating the throttle with a lever according to claim 1, characterized in that, The lever assembly includes a hand throttle lever (11) and a foot throttle lever (12); the hand throttle lever (11) is composed of a first hand throttle transmission lever (111) and a second hand throttle transmission lever (112), one end of the first hand throttle transmission lever (111) and one end of the second hand throttle transmission lever (112) are respectively connected to the two ends of the first rotating shaft rocker arm (33) in the first first rotating shaft (3); the foot throttle lever (12) is composed of a first foot throttle transmission lever (121) and a second foot throttle transmission lever (122), one end of the first foot throttle transmission lever (121) and one end of the second foot throttle transmission lever (122) are respectively connected to the two ends of the first rotating shaft rocker arm (33) in the second first rotating shaft (3).

3. The structure for operating the throttle with a lever according to claim 2, characterized in that, The hand throttle mechanism (1) includes a hand throttle control lever (101) and a hand throttle lever rocker arm (102). The two ends of the hand throttle lever rocker arm (102) are respectively connected to the hand throttle control lever (101) and the end of the first hand throttle transmission lever (111) away from the first rotating shaft rocker arm (33).

4. The structure for operating the throttle with a lever according to claim 2, characterized in that, The foot accelerator mechanism (2) includes: a foot accelerator pedal (201), a foot accelerator pedal rocker arm (202), a rotating hub (203), and a foot accelerator lever rocker arm (204). The foot accelerator pedal rocker arm (202) and the foot accelerator lever rocker arm (204) are both disposed on the outer wall of the rotating hub (203). The foot accelerator pedal (201) is mounted on the end of the foot accelerator pedal rocker arm (202) away from the rotating hub (203). The end of the foot accelerator lever rocker arm (204) away from the rotating hub (203) is connected to the end of the first foot accelerator transmission lever (121) away from the first rotating shaft rocker arm (33).

5. The structure for operating the throttle with a lever according to claim 2, characterized in that, The second rotating shaft rocker arm (44) is provided with a rocker arm groove (441), which is an arc-shaped through hole. The end of the second hand throttle transmission lever (112) away from the first rotating shaft rocker arm (33) and the end of the second foot throttle transmission lever (122) away from the first rotating shaft rocker arm (33) are both bent and pass through the rocker arm groove (441) on the two second rotating shaft rocker arms (44).

6. The structure for operating the throttle with a lever according to claim 5, characterized in that, The lever assembly also includes a shaft drive lever (13) and an engine throttle lever (14). The two ends of the shaft drive lever (13) are respectively connected to the drive rocker arm (45) and one end of the first shaft rocker arm (33) in the third first shaft (3). The two ends of the engine throttle lever (14) are respectively connected to the other end of the first shaft rocker arm (33) in the third first shaft (3) and the throttle rocker arm of the engine (5).

7. The structure for operating the throttle with a lever according to claim 6, characterized in that, The pull rod assembly is provided with multiple baffles (15), which are respectively sleeved on both sides of the bent end of the second hand throttle transmission pull rod (112) passing through the rocker arm slide groove (441), both sides of the bent end of the second foot throttle transmission pull rod (122) passing through the rocker arm slide groove (441), both sides of the connection between the first hand throttle transmission pull rod (111) and the first rotating shaft rocker arm (33), and the connection between the second hand throttle transmission pull rod (112) and the first rotating shaft rocker arm (33). The two sides connected to the first foot throttle transmission lever (121) and the first rotating shaft rocker arm (33), the two sides connected to the second foot throttle transmission lever (122) and the first rotating shaft rocker arm (33), the two sides connected to the rotating shaft transmission lever (13) and the transmission rocker arm (45), the two sides connected to the rotating shaft transmission lever (13) and the first rotating shaft rocker arm (33), and the two sides connected to the engine throttle lever (14) and the first rotating shaft rocker arm (33).

8. The structure for operating the throttle with a lever according to claim 6, characterized in that, The pull rod assembly is provided with a plurality of limiting pins (16), which are respectively detachably inserted into the side where the first hand throttle transmission pull rod (111) is connected to the first rotating shaft rocker arm (33), the side where the second hand throttle transmission pull rod (112) is connected to the first rotating shaft rocker arm (33), the side where the second hand throttle transmission pull rod (112) passes through the bent end of the rocker arm slide groove (441), and the side where the first foot throttle transmission pull rod (121) is connected to the first rotating shaft rocker arm (33). 33) The side connected to the second foot throttle transmission lever (122) and the first rotating shaft rocker arm (33), the side where the second foot throttle transmission lever (122) passes through the bent end of the rocker arm slide groove (441), the side where the rotating shaft transmission lever (13) and the transmission rocker arm (45) are connected, the side where the rotating shaft transmission lever (13) and the first rotating shaft rocker arm (33) are connected, and the side where the engine throttle lever (14) and the first rotating shaft rocker arm (33) are connected.

9. The structure for operating the throttle with a lever according to claim 1, characterized in that, The engine shutdown lever mechanism (6) includes a first engine shutdown transmission lever (61) and a second engine shutdown transmission lever (62). The two ends of the second engine shutdown transmission lever (62) are respectively connected to the first engine shutdown transmission lever (61) and the engine shutdown rocker arm of the engine (5).

10. A tractor, characterized in that, The structure comprising the lever-operated throttle as described in any one of claims 1-9 above.

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