A blade guide rail and angle positioner clearance adjustment mechanism for a grader

Abstract

The present invention discloses a blade guide rail and angle positioner gap adjustment mechanism for a grader. An inner hole extending inward horizontally is respectively arranged at both ends of the angle positioner. An adjustment stud is accommodated in the inner hole for movement. One end of the adjustment stud extending inside the angle positioner is a conical head. The inner end of the threaded hole is connected with a vertical steel ball raceway. A steel ball is accommodated in the steel ball raceway for movement. A pad that can be inserted into the steel ball raceway and contact the steel ball is arranged on the pad plate. When the adjustment stud is screwed forward, the conical head at the front end squeezes the steel ball to move downward, pushes the pad and the pad plate to move downward, and squeezes the copper guide groove. The present invention realizes the gap adjustment of the blade guide rail and angle positioner of the grader through a simple mechanism. The design is ingenious, avoiding the preparation work of the blade guide rail and angle positioner gap adjustment of the grader, cleaning the accumulated soil, disassembling the guard plate, etc., greatly improving the work efficiency, reducing the labor intensity, and being simple and convenient to implement.

Description

Technical Field

[0001] The invention relates to a gap adjustment mechanism, in particular to a gap adjustment mechanism for a blade guide rail and an angle positioner used for a grader. Background Art

[0002] The existing blade guide rail and angle positioner clearance adjustment mechanism of the grader is as follows Figure 1 and Figure 2 As shown, it is mainly composed of stud 1, nut 2, pad 3, angle positioner 4, copper guide groove 5 and side baffle 6. A guide rail 91 is provided on the blade back plate 9. Driven by the oil cylinder, the blade back plate 9 slides along the copper guide groove 5 on the angle positioner. After working for a period of time, the copper guide groove 5 will be worn and thinned. At this time, it is necessary to adjust the gap between the blade guide rail and the angle positioner. The nut 2 on the upper part of the angle positioner 8 drives the stud 1 to move downward, squeeze the pad 3, and then support the copper guide groove 5, so as to adjust the gap between the blade guide rail and the angle positioner. The disadvantage of this method is that the adjustment mechanism is located on the upper part of the blade, and a guard plate 10 is provided on the upper part of the blade guide rail. After the grader has been working for a period of time, there are many soil and stones on the guard plate. It is necessary to clean the accumulated soil and stones and remove the grader guard plate before adjusting the gap between the blade guide rail and the angle positioner, which requires a certain amount of manpower and material resources and is inconvenient to operate. Summary of the invention

[0003] The purpose of the present invention is to provide a blade guide rail and angle positioner gap adjustment mechanism for a grader, the adjustment mechanism is simple and convenient to operate, ingeniously designed, time-saving and labor-saving, and has a high cost-effectiveness.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A blade guide rail and angle positioner gap adjustment mechanism for a grader, comprising a pad arranged below the angle positioner for squeezing a copper guide groove, the copper guide groove being used to accommodate the guide rail on the back plate of the blade to slide therein, characterized in that an inner hole extending horizontally inward is arranged at each end of the angle positioner, an adjustment stud is accommodated in the inner hole to move therein, and one end of the adjustment stud extending inside the angle positioner is a conical head; the inner end of the threaded hole is connected with a vertical steel ball raceway; a steel ball is accommodated in the steel ball raceway to move therein;

[0006] A pad is provided on the pad plate, which can extend into the steel ball raceway and contact the steel ball. When the adjusting stud is screwed forward, the conical head at the front end squeezes the steel ball to move downward, thereby pushing the pad and the pad plate to move downward, squeezing the copper guide groove against the guide rail on the back plate of the scraper.

[0007] The inner hole is an internal threaded hole.

[0008] An adjusting stud is symmetrically arranged at each of the two ends of the angle positioner.

[0009] The adjusting stud is a hexagon socket stud.

[0010] The outside of the adjustment studs and copper guide grooves are covered with baffles.

[0011] The cushion block is in a step shape, and a slot matching the shape of the cushion block is provided on the angle positioner, and the slot is connected with the steel ball raceway.

[0012] The beneficial effects achieved by the present invention are:

[0013] The present invention breaks the existing adjustment mechanism of the blade guide rail and the angle positioner gap of the motor grader, transfers the adjustment mechanism to the side of the angle positioner for adjustment, and by screwing in the adjustment bolt on the side of the angle positioner, the steel ball inside the steel ball raceway of the angle positioner is squeezed to move downward, and then the steel ball moves toward the copper guide groove against the pad, driving the copper guide groove to move downward, so as to adjust the gap between the blade guide rail and the angle positioner. This adjustment mechanism is simple and convenient to operate, saves time and effort, solves the drawbacks of the existing adjustment mechanism, has a clever design, is simple and convenient to operate, has strong practicality, high cost performance, and strong feasibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an existing grader blade guide rail and angle positioner clearance adjustment mechanism;

[0015] Figure 2 It is a stereoscopic diagram of an existing blade angle positioner;

[0016] Figure 3 It is a cross-sectional view of the initial position of the new blade guide rail and angle positioner adjustment mechanism;

[0017] Figure 4 This is a cross-sectional view of the new blade guide rail and angle positioner adjustment mechanism after initial adjustment;

[0018] Figure 5 Cross-section of the adjustment mechanism (large gap);

[0019] Figure 6 Cross-sectional view of adjustment mechanism (after clearance adjustment);

[0020] In the figure: 1, stud; 2, nut; 3, pad; 4, cross section of angle positioner; 5, copper guide groove; 6, side baffle; 7, scraper; 8, three-dimensional view of angle positioner; 9, scraper back plate; 91, guide rail; 10, guard plate; 11, adjustment stud; 12, steel ball; 13, pad; 14, angle positioner; 15, copper guide groove; 16, baffle; 17, gap. DETAILED DESCRIPTION

[0021] The present invention is described below with reference to the accompanying drawings and implementation examples.

[0022] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention is a blade guide rail and angle positioner gap adjustment mechanism for a grader, comprising an adjustment stud 11, a steel ball 12, a pad 13, an angle positioner 14, a copper guide groove 15 and a baffle 16, etc.

[0023] The two ends of the angle positioner 14 are respectively provided with an internal threaded hole extending horizontally inward, and the internal threaded hole can threadably accommodate an adjustment stud 11 with an external thread to move therein. The inner end of the threaded hole is connected with a vertical steel ball raceway 141. The steel ball raceway 141 can accommodate a steel ball 12 to move therein.

[0024] The adjusting stud 11 is a hexagonal stud, and one end of the adjusting stud 11 extending inside the angle positioner 14 is a conical head 111. When the conical head 111 moves inward, it can push the steel ball 12 to move downward along the steel ball raceway 141.

[0025] An adjusting stud 11 is symmetrically arranged at each of the two ends of the angle positioner 14 .

[0026] The outer sides of the adjusting studs 11 and the copper guide grooves 15 on both sides are covered with baffles 16 to prevent the copper guide grooves 15 and the adjusting studs 11 from loosening and moving outward.

[0027] A step-shaped pad 131 is welded on the pad 13, which can be inserted into the steel ball raceway 141 and contact the steel ball 12. When the steel ball 12 moves downward, the pad 131 and the pad 13 are pushed downward. A slot matching the shape of the pad 131 is provided on the angle positioner 14, and the slot is connected to the steel ball raceway 141. The pad 13 is inserted into the slot of the angle positioner 14 through the pad 131 to prevent the pad 13 from jumping left and right.

[0028] There is a copper guide groove 15 below the backing plate 13. When the backing plate 13 moves downward, it pushes the copper guide groove 15 to move downward, thereby reducing the gap between the angle positioner and the blade guide rail.

[0029] like Figure 3 The figure shows the initial position of the new blade guide rail and the angle positioner adjustment mechanism. At this time, the end face of the adjustment stud 11 is flush with the two side ends of the angle positioner 14, the pad 13 is flush with the inner section of the angle positioner 14, and the copper guide groove 15 is in an unworn state.

[0030] like Figure 4 The figure shows the position diagram of the new scraper guide rail and the angle positioner after adjustment. After the scraper has been working for a period of time, the copper guide groove 15 will be worn to a certain extent, so that there is a large gap between the guide rail 91 and the angle positioner, such as Figure 5As shown, the back and forth movement of the scraper along the guide rail 91 is affected, so it is necessary to adjust the gap 17 between the guide rail 91 on the scraper back plate and the angle positioner. By rotating the adjustment stud 11, the adjustment stud 11 moves inward along the threaded hole of the angle positioner 14, and the conical head 111 inside the adjustment stud 11 squeezes the steel ball 12. The steel ball 12 is forced to move downward in the steel ball raceway 141 inside the angle positioner 14. The steel ball 12 moves downward against the pad 16, driving the copper guide groove 15 to move downward, thereby adjusting the gap between the scraper guide rail and the angle positioner. This adjustment mechanism is simple and convenient to operate. Figure 6 shown.

[0031] The adjustment stud 11 is adjusted intermittently to ensure that the pad 16 keeps moving downward horizontally, thereby ensuring that the copper guide groove 15 is in a horizontal state.

[0032] The present invention places the blade guide rail and angle positioner gap adjustment mechanism of the grader on both sides of the angle positioner 14, thereby solving the problems of cleaning accumulated soil and stones and disassembling and assembling the blade guard plate of the existing adjustment mechanism. The invention is simple and convenient to operate, has strong practicality, high cost performance and strong feasibility.

Claims

1. A blade guide rail and angle positioner gap adjustment mechanism for a grader, comprising a pad arranged under the angle positioner for squeezing a copper guide groove, wherein the copper guide groove is used to accommodate the guide rail on the blade back plate to slide therein, characterized in that: An inner hole extending inward horizontally is respectively provided at both ends of the angle positioner, and an adjusting stud is accommodated in the inner hole to move therein, and one end of the adjusting stud extending inside the angle positioner is a conical head; the inner hole is an internal threaded hole, and the inner end of the internal threaded hole is connected with a vertical steel ball raceway; a steel ball is accommodated in the steel ball raceway to move therein; The pad is provided with a pad that can extend into the steel ball raceway and contact the steel ball. When the adjustment stud is screwed forward, the conical head at the front end squeezes the steel ball to move downward, pushing the pad and the pad downward, squeezing the copper guide groove against the guide rail on the back plate of the scraper. The cushion block is in the shape of a step, and the angle positioner is provided with a slot matching the shape of the cushion block, and the slot is connected to the steel ball raceway; An adjusting stud is symmetrically arranged at each end of the angle positioner; The outside of the adjustment studs and copper guide grooves are covered with baffles.

2. The blade guide rail and angle positioner gap adjustment mechanism for a grader according to claim 1, characterized in that: The adjusting stud is a hexagon socket stud.

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