Suspension seat of tractor

Abstract

The utility model provides a tractor suspension seat which comprises a base, a guide rail and a suspension seat, the base is fixed on a tractor through bolts, the guide rail is vertically fixed on the base, a guide wheel is installed on the rear side of the suspension seat, the guide wheel is sleeved in the guide rail, a shock absorber is installed between the suspension seat and the base, and the suspension seat comprises a seat plate, a backrest and an installation frame. Two groups of guide wheels are vertically and parallelly mounted and fixed on the back of the mounting frame, each group of guide wheels comprises a left guide wheel and a right guide wheel, the guide rail is mounted on the rear side of the suspension seat, the left guide wheel and the right guide wheel are respectively clamped and sleeved in channel steel grooves on corresponding sides, and a transverse supporting plate is arranged on the back of the mounting frame. The shock absorber works to adapt to impact caused by terrains, vibration force directly transmitted to a human body is greatly reduced, and operation comfort is improved. The suspension performance of the seat is improved through the shock absorber, so that the tractor can provide better riding comfort when working on complex terrains, the fatigue of operators is reduced, and the working efficiency and the safety are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical engineering and vehicle engineering, and particularly relates to a tractor suspension seat. Background Art

[0002] At present, small tractors are the most common agricultural machinery for farmland operations and roads. However, the seats of traditional tractors are not equipped with shock-absorbing devices. Instead, the seat base is rigidly connected and fixed to the tractor. During driving, the seat has no elasticity and cannot adapt to harsh road conditions, making the tractor more susceptible to more impacts and affecting the driver's working comfort.

[0003] Tractor operators usually need to work for several hours continuously. The working environment of the tractor makes it inevitable that the tractor will vibrate and bump during operation. The vibration of the rigidly connected tractor has a significant impact on the comfort of the tractor seat, which is directly related to the operator's physical feelings and health. Long-term exposure to vibration will make the operator's body feel tired, especially in the back, neck and waist. Vibration can cause the stability of the seat to decrease, making it difficult for the operator to find a stable and comfortable sitting position. Long-term vibration exposure may cause low back pain, neck pain, joint pain and other musculoskeletal problems. Excessive vibration may make it difficult for the operator to concentrate, affecting operational accuracy and work efficiency.

[0004] Therefore, a tractor seat is needed that can reduce tractor vibration transmission and improve the riding comfort of the tractor operator. Utility Model Content

[0005] Aiming at the problem that the tractor has large vibrations and affects the riding comfort of the operator, the utility model provides a tractor suspension seat equipped with a shock absorber.

[0006] The solution adopted by the utility model to solve the technical problem is: a tractor suspension seat, comprising a base, a guide rail and a suspension seat, the base is fixed to the tractor by bolts, the guide rail is vertically fixed to the base, a guide wheel is installed on the rear side of the suspension seat, the guide wheel is sleeved in the guide rail, a shock absorber is installed between the suspension seat and the base, the suspension seat comprises a seat plate, a backrest and a mounting frame, two groups of guide wheels are installed and fixed in parallel up and down on the back of the mounting frame, each group of guide wheels comprises a left guide wheel and a right guide wheel, the guide rail is installed on the rear side of the suspension seat, the guide rail comprises two left-right symmetrical channel steels, the channel steels are vertically fixed to the tractor or the bottom plate, the left and right guide wheels are respectively inserted in the grooves of the channel steels on the corresponding sides, a horizontal support plate is arranged on the back of the mounting frame, an upper axle seat is arranged on the lower side of the support plate, a corresponding lower axle seat is arranged on the tractor or the bottom plate, a shock absorber is installed between the upper and lower axle seats, the backrest is vertically fixed on the mounting frame, and the horizontal seat plate is fixed at the lower end of the mounting frame.

[0007] Furthermore, the base is divided into two parts, including a fixed plate and a movable plate. The fixed plate is fixed on the tractor body, a sleeve is provided on the fixed plate, a sleeve rod is provided on the movable plate, the sleeve rod is sleeved in the sleeve and fixed by locking wires, the guide rail is fixed on the movable plate, a pair of parallel sleeves are welded on the fixed plate, a pair of corresponding sleeve rods are welded on the movable plate, locking wire holes are provided on the sides of the sleeves, the sleeve rod is sleeved in the sleeves, the locking wires are sleeved in the locking wire holes, the sleeve rod is fixed by the locking wires, and positioning screw holes are also provided on the tractor body, and through holes corresponding to the positioning screw holes are provided on the movable plate, and the adjusted movable plate is fixed to the body by bolts.

[0008] Furthermore, the seat plate and the mounting frame bracket are also provided with obliquely stretched reinforcing ribs, and the seat plate and the backrest are both provided with sponge cushions.

[0009] Beneficial effects of the utility model: The utility model provides a tractor suspension seat, which works through a shock absorber to adapt to the impact caused by the terrain, greatly reducing the vibration force directly transmitted to the human body and improving the comfort of operation. The shock absorber improves the suspension performance of the seat, so that the tractor can provide better riding comfort when operating on complex terrain, reduce the fatigue of the operator, and improve work efficiency and safety.

[0010] The guide wheel fits tightly into the groove of the guide rail to ensure that the suspension seat moves vertically up and down along the guide rail. The sleeves of the left and right guide wheels cooperate to limit the lateral movement of the suspension seat, thereby ensuring that the suspension seat can only move smoothly in the vertical direction. When the tractor encounters an uneven road during movement, the seat will move up and down. The guide wheel slides in the guide rail to effectively control the movement path of the seat, avoiding excessive lateral shaking or twisting, thereby ensuring the smoothness of movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0012] Figure 2 It is a three-dimensional structural diagram of the utility model from another direction.

[0013] Figure 3 It is a cross-sectional structural diagram of the utility model.

[0014] The numbers in the figure are: base 1, guide rail 2, suspension seat 3, shock absorber 4, seat plate 31, backrest 32, mounting frame 33, support plate 34, guide wheel 35, fixed plate 11, movable plate 12, sleeve 13, sleeve rod 14, upper shaft seat 41, lower shaft seat 42. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below.

[0016] Embodiment 1: The utility model provides a tractor suspension seat, such as Figure 1 As shown, the seat includes a base 1, a guide rail 2 and a suspension seat 3. The base 1 is fixed to the chassis of the tractor by bolts. The guide rail 2 is vertically fixed to the base 1 to guide and support the suspension seat 3 to move up and down to ensure the stability of the seat in the vertical direction. The guide rail 2 is usually composed of two left-right symmetrical channel steels.

[0017] like Figure 2 As shown, a guide wheel 35 is installed at the rear side of the suspension seat 3, and the guide wheel 35 is sleeved in the guide rail 2. A shock absorber 4 is installed between the suspension seat 3 and the base 1. The suspension seat 3 includes a seat plate 31 (seat cushion part), a backrest 32, and a mounting frame 33 connecting the two parts. The suspension seat 3 is the main part of the seat, which is in direct contact with the operator. Two sets of guide wheels 35 are fixed and installed in parallel on the back of the mounting frame 33, and each set of guide wheels 35 includes a left guide wheel 35 and a right guide wheel 35.

[0018] The guide rail 2 is installed at the rear side of the suspension seat 3. The guide rail 2 includes two left-right symmetrical channel steels, which are vertically fixed to the tractor or the base plate. The left and right guide wheels 35 are respectively inserted into the grooves of the channel steels on the corresponding sides to guide and limit the suspension seat 3 to move up and down along the guide rail 2.

[0019] like Figure 2 and 3 As shown, a horizontal support plate 34 is provided on the back of the mounting frame 33, an upper axle seat 41 is provided on the lower side of the support plate 34, a corresponding lower axle seat 42 is provided on the tractor or the bottom plate, a shock absorber 4 is installed between the upper and lower axle seats 42, a backrest 32 is vertically fixed on the mounting frame 33, and a horizontal seat plate 31 is fixed at the lower end of the mounting frame 33. The shock absorber 4 is installed between the suspension seat 3 and the base 1, responsible for absorbing vibration and impact, and is an important comfort component. The support plate 34 is installed on the back of the suspension seat 3, and is used to stabilize and support the suspension seat 3 in the horizontal direction. An upper axle seat 41 is provided on the lower side of the support plate 34, and a corresponding lower axle seat 42 is provided on the base 1, and the upper and lower axle seats 42 are connected through the shock absorber 4.

[0020] The function of the guide wheel 35 of the suspension seat is to ensure that the seat can move smoothly along a predetermined path when it is subjected to vibration and bumps. The guide wheel 35 fits tightly in the groove of the guide rail 2 to ensure that the suspension seat 3 moves vertically up and down along the guide rail 2. The clamping sleeves of the left and right guide wheels 35 limit the lateral movement of the suspension seat 3, thereby ensuring that the suspension seat 3 can only move smoothly in the vertical direction. When the tractor encounters an uneven road surface during movement, the seat will move up and down. The guide wheel 35 slides in the guide rail 2, which can effectively control the movement path of the seat and avoid excessive lateral shaking or twisting, thereby ensuring the smoothness of movement.

[0021] Since the guide wheel 35 is tightly embedded in the groove of the guide rail 2, the seat will not fall off the guide rail 2 or deviate from the track, which is used to maintain the long-term durability and functionality of the entire suspension structure. The design of the guide wheel 35 allows the weight of the operator sitting on the seat to be evenly distributed on the guide rail 2 through the guide wheel 35, reducing the load pressure at a single point, which is also beneficial to the operation of the shock absorber 4 and improves the stability and comfort of the entire seat structure.

[0022] When the tractor is running, uneven ground will cause vibrations and bumps. The shock absorber 4 on the suspension seat can absorb these vibrations, and the seat moves with the elastic movement of the shock absorber 4, reducing the impact force directly transmitted to the operator. The guide wheel 35 moves up and down along the guide rail 2, ensuring the smooth vertical movement of the suspension seat 3, while the support plate 34 and the axle seat increase the lateral stability of the seat.

[0023] When the operator sits on the suspension seat 3 to work, the seat works through the suspension system and the shock absorber 4 to adapt to the impact caused by the terrain, greatly reducing the vibration force directly transmitted to the human body and improving the comfort of operation. By adjusting the strength of the shock absorber 4 or replacing the shock absorber 4 with different hardness, the shock absorption effect of the suspension seat can be adjusted according to the weight of the operator or the needs of the working environment to achieve the best comfort.

[0024] The suspension seat provided by the utility model improves the suspension performance of the seat through a shock absorbing system, so that the tractor can provide better riding comfort when operating on complex terrain, reduce the fatigue of the operator, and improve work efficiency and safety.

[0025] Embodiment 2: Due to the different body shapes of operators, different operators have different requirements for the seat position. Based on this, this embodiment further improves the base 1 of the tractor seat.

[0026] like Figure 3 As shown, the base 1 of the suspension seat is divided into two parts, namely a fixed plate 11 and a movable plate 12, wherein the fixed plate 11 is fixed to the tractor body by bolts or welding, and a group of parallel square sleeves 13 are installed on the upper side of the fixed plate 11 by welding, and the parallel sleeves 13 are respectively located on the left and right sides of the fixed plate 11, and the corresponding sleeve rods 14 are installed on the movable plate 12, and the sleeve rods 14 on the movable plate 12 are inserted into the sleeves 13, and the two are locked by the locking wires on the sides of the sleeves 13, and symmetrical channel steel guide rails 2 are installed on both sides of the movable plate 12.

[0027] Furthermore, a row of positioning screw holes is provided on the tractor body, and the position of the movable plate 12 is adjusted by means of the sleeve 13 and the sleeve rod 14. The movable plate 12 is provided with through holes corresponding to the positioning screw holes, and the adjusted movable plate 12 is fixed to the body by bolts.

[0028] At the same time, in order to improve the firmness of the seat plate 31 , obliquely stretched reinforcing ribs are also provided on the seat plate 31 and the mounting frame 33 , and sponge cushions are provided on the seat plate 31 and the backrest 32 .

[0029] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A tractor suspension seat, comprising a base (1), a guide rail (2) and a suspension seat (3), wherein the base (1) is fixed to the tractor by bolts, and the guide rail (2) is vertically fixed to the base (1), characterized in that: A guide wheel (35) is installed on the rear side of the suspension seat (3), and the guide wheel (35) is sleeved in the guide rail (2). A shock absorber (4) is installed between the suspension seat (3) and the base (1). The suspension seat (3) includes a seat plate (31), a backrest (32) and a mounting frame (33). Two sets of guide wheels (35) are installed and fixed in parallel on the back of the mounting frame (33). Each set of guide wheels (35) includes a left guide wheel (35) and a right guide wheel (35). The guide rail (2) is installed on the rear side of the suspension seat (3). The guide rail (2) includes The invention comprises two symmetrical channel steels, which are vertically fixed on a tractor or a bottom plate, and the left and right guide wheels (35) are respectively inserted into the grooves of the channel steels on the corresponding sides. A horizontal support plate (34) is arranged on the back of the mounting frame (33), an upper axle seat (41) is arranged on the lower side of the support plate (34), and a corresponding lower axle seat (42) is arranged on the tractor or the bottom plate. A shock absorber (4) is installed between the upper and lower axle seats (42), a backrest (32) is vertically fixed on the mounting frame (33), and a horizontal seat plate (31) is fixed on the lower end of the mounting frame (33).

2. The tractor suspension seat according to claim 1, characterized in that: The base (1) is divided into two parts, including a fixed plate (11) and a movable plate (12); the fixed plate (11) is fixed to the tractor body; a sleeve (13) is provided on the fixed plate (11); a sleeve rod (14) is provided on the movable plate (12); the sleeve rod (14) is sleeved in the sleeve (13) and fixed by locking wires; and the guide rail (2) is fixed to the movable plate (12).

3. The tractor suspension seat according to claim 2, characterized in that: A pair of parallel sleeves (13) are welded on the fixed plate (11), and a pair of corresponding sleeve rods (14) are welded on the movable plate (12). The side of the sleeve (13) is provided with a locking wire hole. The sleeve rod (14) is sleeved in the sleeve (13), and the locking wire is sleeved in the locking wire hole. The sleeve rod (14) is fixed by the locking wire.

4. The tractor suspension seat according to claim 3, characterized in that: The tractor body is also provided with a positioning screw hole, and the movable plate (12) is provided with a through hole corresponding to the positioning screw hole, and the adjusted movable plate (12) is fixed to the body by means of bolts.

5. The tractor suspension seat according to claim 1, characterized in that: The seat plate (31) and the mounting frame (33) bracket are also provided with obliquely stretched reinforcing ribs, and the seat plate (31) and the backrest (32) are both provided with sponge cushions.

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