Tractor hand brake control auxiliary mechanism

Abstract

A pair of transmission shafts are transversely arranged on the two sides of the middle of a chassis body, a pair of braking assemblies are arranged between the two sides of the chassis body and the transmission shafts respectively, and a braking component and a braking rod are arranged between the pair of braking assemblies and the pair of transmission shafts; the upper end of the chassis body is provided with a brake auxiliary mechanism and a fixed seat; two ends of the fixed seat are provided with a pair of bushes, a brake mechanism main shaft, a rocker arm and a brake control handle assembly; a hand brake pull rod is arranged between the brake control handle assembly and the rocker arm; a brake mechanism main shaft and the hand brake pull rod are respectively arranged at two ends of the rocker arm; guide blocks are respectively arranged at the same ends of the pair of shifting blocks; a pull rod and a locking nut are respectively arranged in the guide blocks; a pull rod seat and a brake rod are arranged at the lower end of the pull rod; the hand brake control auxiliary mechanism is adopted to control the pull rod to drive the brake assembly to brake, brake operation and return are sensitive, the frequency of maintaining and replacing parts is reduced, the failure rate is reduced, and the safety of parking brake of the tractor is ensured.

Description

Technical Field

[0001] The utility model relates to a tractor hand brake, in particular to a tractor hand brake operating auxiliary mechanism. Background Art

[0002] At present, the handbrake operating mechanism of the tractor is an important component of the parking brake, which is mainly used for vehicle parking brake. The existing handbrake operating mechanism of the tractor is generally operated by a flexible shaft cable, has many components, and is relatively complicated to maintain during use. It has the problems of high failure rate, heavy operation, poor return effect, and high cost when parts need to be repaired and replaced later. The subsequent maintenance is difficult and time-consuming, and the cost of repairing and replacing parts is too high. This has long been a technical problem that is difficult to solve. In view of the above reasons, a tractor handbrake operating auxiliary mechanism is proposed. Utility Model Content

[0003] The purpose of the utility model is to overcome the problems that the existing tractor hand brake operating mechanism is generally operated by a flexible shaft cable, has many parts, and the maintenance during use is relatively complicated, and there are problems such as high failure rate, heavy operation, poor return effect, and excessive cost when parts need to be repaired and replaced later. In addition, the difficulty and time of subsequent maintenance are large, and the cost of repairing and replacing parts is too high. The long-standing technical problems are difficult to solve: through reasonable design, a tractor hand brake operating auxiliary mechanism is provided; the utility model adopts a hand brake operating auxiliary mechanism, which drives the braking total stroke to brake through a rocker arm control rod, and the braking operation and return are sensitive, which can reduce the problem of excessive cost when the flexible shaft cable needs to be repaired and replaced later; the maintenance of the tractor brake mechanism is improved, the frequency of maintenance and replacement of parts is reduced, the failure rate is reduced, and the safety of the tractor parking brake is ensured.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tractor handbrake operating auxiliary mechanism, which is composed of: a chassis body, a brake assembly, a brake rod, a brake auxiliary mechanism, a bushing, a fixing seat, a brake operating handle assembly, a brake mechanism main shaft, a shift block, a rocker arm, a guide block, a spring pin, a handbrake fixing seat, a handbrake pull rod, a transmission shaft, a pull rod, and a pull rod seat; a pair of transmission shafts are horizontally arranged on both sides of the middle of the chassis body, a pair of brake assemblies are respectively arranged between the two sides of the chassis body and the transmission shafts, a pair of brake assemblies are arranged between the pair of transmission shafts, and a pair of brakes are arranged between the pair of brake assemblies and the pair of transmission shafts. A brake lever is arranged above the assembly; a brake assist mechanism is arranged at the upper end of the chassis body, a fixing seat is arranged horizontally between the lower part of the brake assist mechanism and the chassis body, a pair of bushings are arranged at both ends of the fixing seat, a brake mechanism main shaft is arranged in the pair of bushings, a rocker arm is arranged at one end of the brake mechanism main shaft, a brake operating handle assembly is arranged above the rocker arm, a handbrake fixing seat is arranged at the lower end of the brake operating handle assembly, and a brake locking mechanism is arranged between the brake operating handle assembly and the handbrake fixing seat; a handbrake pull rod is arranged between the brake operating handle assembly and the rocker arm, and a brake mechanism main shaft and a handbrake pull rod are arranged at both ends of the rocker arm;

[0005] A pair of shift blocks are arranged on both sides of a pair of bushings, the pair of bushings and the pair of shift blocks are arranged coaxially, spring pins are respectively arranged on the upper parts of the pair of shift blocks, the same end of the pair of shift blocks is respectively arranged as a sowing block groove, guide blocks are respectively arranged in the sowing block grooves, pull rod through holes are reserved in the centers of the guide blocks, pull rods are respectively arranged in the pull rod through holes, and locking nuts are respectively arranged at the upper ends of the pull rods; pull rod seats are respectively arranged at the lower ends of the pull rods, a brake rod hole is reserved on one side of the pull rod seat, a brake rod is arranged in the brake rod hole, and a locking nut is arranged at the upper end of the brake rod.

[0006] Beneficial effects: The utility model adopts a handbrake operating auxiliary mechanism, which drives the braking system to brake through a rocker arm control rod. The braking operation and return are sensitive, which can reduce the problem of high cost when subsequent maintenance and replacement of parts of the flexible shaft cable are required; it improves the maintenance of the tractor's braking mechanism, reduces the frequency of maintenance and replacement of parts, reduces the failure rate, and ensures the safety of the tractor's parking brake. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The utility model is further described below in conjunction with the accompanying drawings:

[0008] Figure 1 It is a schematic diagram of the general assembly structure;

[0009] Figure 2 It is a schematic diagram of the local structure;

[0010] Figure 1 , 2In the middle: chassis body 1, brake assembly 2, brake rod 2-1, brake auxiliary mechanism 3, bushing 3-1, fixing seat 3-2, brake operating handle assembly 4, brake mechanism main shaft 5, shift block 5-1, rocker arm 5-2, guide block 5-3, spring pin 5-4, handbrake fixing seat 6, handbrake pull rod 7, transmission shaft 8, pull rod 9, pull rod seat 9-1. DETAILED DESCRIPTION

[0011] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0012] A transmission shaft 8 is transversely arranged in the middle of the chassis body 1, a pair of brake assemblies 2 are arranged between the two sides of the chassis body 1 and the transmission shaft 8, a brake component is arranged between the pair of brake assemblies 2 and the transmission shaft 8, and brake rods 2-1 are respectively arranged above the pair of brake assemblies 2; a brake auxiliary mechanism 3 is arranged at the upper end of the chassis body 1, a fixing seat 3-2 is transversely arranged between the lower part of the brake auxiliary mechanism 3 and the chassis body 1, a pair of bushings 3-1 are arranged at both ends of the fixing seat 3-2, a brake mechanism main shaft 5 is arranged in the pair of bushings 3-1, a rocker arm 5-2 is arranged at one end of the brake mechanism main shaft 5, a brake operating handle assembly 4 is arranged above the rocker arm 5-2, a handbrake fixing seat 6 is arranged at the lower end of the brake operating handle assembly 4, and a brake locking mechanism is arranged between the brake operating handle assembly 4 and the handbrake fixing seat 6; a handbrake pull rod 7 is arranged between the brake operating handle assembly 4 and the rocker arm 5-2, and the brake mechanism main shaft 5 and the handbrake pull rod 7 are respectively arranged at both ends of the rocker arm 5-2;

[0013] A pair of shifting blocks 5-1 are arranged on both sides of a pair of bushings 3-1, and the pair of bushings 3-1 and the pair of shifting blocks 5-1 are arranged coaxially, and spring pins 5-4 are respectively arranged on the upper parts of the pair of shifting blocks 5-1, and the same ends of the pair of shifting blocks 5-1 are respectively arranged as sowing block grooves, and guide blocks 5-3 are respectively arranged in the sowing block grooves, and pull rod through holes are reserved in the centers of the guide blocks 5-3, and pull rods 9 are respectively arranged in the pull rod through holes, and locking nuts are respectively arranged at the upper ends of the pull rods 9; pull rod seats 9-1 are respectively arranged at the lower ends of the pull rods 9, and a brake rod hole is reserved on one side of the pull rod seat 9-1, and a brake rod 2-1 is arranged in the brake rod hole, and a locking nut is arranged at the upper end of the brake rod 2-1.

Claims

1. A tractor handbrake operating auxiliary mechanism, comprising: a chassis body (1), a brake assembly (2), a brake rod (2-1), a brake auxiliary mechanism (3), a bushing (3-1), a fixing seat (3-2), a brake operating handle assembly (4), a brake mechanism main shaft (5), a shift block (5-1), a rocker arm (5-2), a guide block (5-3), a spring pin (5-4), a handbrake fixing seat (6), a handbrake pull rod (7), a transmission shaft (8), a pull rod (9), and a pull rod seat (9-1); characterized in that: A pair of transmission shafts (8) are transversely arranged on both sides of the middle of the chassis body (1); a pair of brake assemblies (2) are respectively arranged between the two sides of the chassis body (1) and the transmission shafts (8); a brake component is arranged between the pair of brake assemblies (2) and the pair of transmission shafts (8); and brake rods (2-1) are respectively arranged above the pair of brake assemblies (2); a brake assist mechanism (3) is arranged at the upper end of the chassis body (1); a fixing seat (3-2) is transversely arranged between the lower part of the brake assist mechanism (3) and the chassis body (1); and a pair of bushings (3-1) are arranged at both ends of the fixing seat (3-2). A brake mechanism main shaft (5) is arranged in a pair of bushings (3-1); a rocker arm (5-2) is arranged at one end of the brake mechanism main shaft (5); a brake operating handle assembly (4) is arranged above the rocker arm (5-2); a handbrake fixing seat (6) is arranged at the lower end of the brake operating handle assembly (4); a brake locking mechanism is arranged between the brake operating handle assembly (4) and the handbrake fixing seat (6); a handbrake pull rod (7) is arranged between the brake operating handle assembly (4) and the rocker arm (5-2); and the brake mechanism main shaft (5) and the handbrake pull rod (7) are arranged at both ends of the rocker arm (5-2).

2. A tractor handbrake operating auxiliary mechanism according to claim 1, characterized in that: A pair of shifting blocks (5-1) are arranged on both sides of the pair of bushings (3-1), the pair of bushings (3-1) and the pair of shifting blocks (5-1) are arranged coaxially, spring pins (5-4) are respectively arranged on the upper parts of the pair of shifting blocks (5-1), the same end of the pair of shifting blocks (5-1) is respectively arranged as a sowing block groove, a guide block (5-3) is respectively arranged in the sowing block groove, a pull rod through hole is reserved in the center of the guide block (5-3), a pull rod (9) is respectively arranged in the pull rod through hole, and a locking nut is respectively arranged at the upper end of the pull rod (9); a pull rod seat (9-1) is respectively arranged at the lower end of the pull rod (9), a brake rod hole is reserved on one side of the pull rod seat (9-1), a brake rod (2-1) is arranged in the brake rod hole, and a locking nut is respectively arranged at the upper end of the brake rod (2-1).

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