Tool for pressing lifter into shaft sleeve

Abstract

The utility model relates to the technical field of shaft sleeve assembly, in particular to a tool for pressing a lifter into a shaft sleeve, which comprises two oppositely arranged hydraulic cylinder seats, horizontally arranged hydraulic cylinders are mounted in the hydraulic cylinder seats in an up-down adjustable manner, the hydraulic cylinders penetrate through the inner side walls and the outer side walls of the hydraulic cylinder seats, and cylinder rods of the two hydraulic cylinders are coaxially and oppositely arranged. Pressing plates are fixedly installed at the ends of cylinder rods of the hydraulic cylinders and located outside the inner side walls of the hydraulic cylinder bases, and the two hydraulic cylinders communicate with synchronous valves correspondingly. The device further comprises a conveying support located between the two hydraulic cylinder seats, a roll shaft conveying face used for conveying a lifter and a shaft sleeve is installed on a top platform of the conveying support, and a tensioning beam is installed between the tops of the two hydraulic cylinder seats. Shaft sleeves are pre-installed at the two ends of the lifter and then placed on the roll shaft conveying face, the shaft sleeves are pressed into the lifter when the shaft sleeves move to the position between the two hydraulic cylinders, the shaft sleeve lifting device is simple in structure, rapid and stable, and can be matched with a workshop assembly line, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeve assembly, in particular to a lifting device pressing into a shaft sleeve tool. Background Art

[0002] As the main tool of agricultural mechanization, tractors are the most widely used in agricultural production. They are the main power output source for various types of agricultural machinery and are also an important symbol of agricultural mechanization. At present, most of the domestic tractor lifters are composed of lifter housing, inner lift arm, lift shaft, outer lift arm, single-acting independent cylinder, piston, distributor, safety valve, descending speed regulating valve, force feedback sub-assembly, operating mechanism, etc. During the lifter processing and assembly process, it is necessary to press the sleeves at both ends of the lifter. The traditional press-in sleeves are mainly done manually, which is time-consuming and labor-intensive, cannot adapt to assembly line operations, and has low work efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a lifter pressing-in shaft sleeve tooling which is simple in structure, quick and convenient and can match with a workshop assembly line.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: the lifter is pressed into the sleeve tooling, including two relatively arranged hydraulic cylinder seats, and a horizontally arranged hydraulic cylinder is installed in the hydraulic cylinder seat so as to be adjustable up and down, and the hydraulic cylinder passes through the inner wall and the outer wall of the hydraulic cylinder seat, and the cylinder rods of the two hydraulic cylinders are coaxially arranged opposite to each other, and a pressure plate is fixedly installed on the end of the cylinder rod of the hydraulic cylinder, and the pressure plate is located outside the inner wall of the hydraulic cylinder seat, and the two hydraulic cylinders are respectively connected with a synchronization valve; it also includes a conveying bracket located between the two hydraulic cylinder seats, and a roller conveying surface for conveying the lifter and the sleeve is installed on the top platform of the conveying bracket, and a tensioning beam is installed between the tops of the two hydraulic cylinder seats.

[0005] As a preferred technical solution, a mounting plate is provided around the outer wall of the cylinder barrel of the hydraulic cylinder, the mounting plate is located outside the hydraulic cylinder seat and is close to the outer wall of the hydraulic cylinder seat, a plurality of mounting holes are opened on the mounting plate, and a plurality of groups of positioning holes used in conjunction with the mounting holes are symmetrically provided on the inner wall and the outer wall of the hydraulic cylinder seat, the positioning bolts pass through the mounting holes, the positioning holes on the outer wall and the positioning holes on the inner wall in sequence from the outside of the hydraulic cylinder seat, and are fixed by nuts to fix the hydraulic cylinder at the set position of the hydraulic cylinder seat.

[0006] As a preferred technical solution, the mounting plate is a circular plate with a horizontal straight edge cut on the top, and two mounting holes are respectively provided on the left and right sides of the mounting plate.

[0007] As a preferred technical solution, a vertical long slot hole is opened on the inner wall of the hydraulic cylinder seat, and the width of the long slot hole is equal to the diameter of the cylinder rod. When the hydraulic cylinder is located at the position of the positioning hole at the upper end, the top arc surface of the long slot hole is tangent to the upper arc surface of the cylinder rod. When the hydraulic cylinder is located at the position of the positioning hole at the lower end, the bottom arc surface of the long slot hole is tangent to the lower arc surface of the cylinder rod.

[0008] As a preferred technical solution, the diameter of the pressing plate is larger than the outer diameter of the sleeve.

[0009] As a preferred technical solution, the cross-section of the tension beam is one of semicircular, circular, and polygonal, and both ends of the tension beam are respectively welded and fixed to the top of the hydraulic cylinder seat, and there is more than one tension beam.

[0010] As a preferred technical solution, the roller conveying surface includes a plurality of rollers arranged in parallel, and the rollers can be rotated manually individually.

[0011] As a preferred technical solution, a plurality of lifter support plates are laid on the roller conveying surface, and rubber pads are installed on the upper surfaces of the lifter support plates.

[0012] Due to the adoption of the above technical scheme, the lifter is pressed into the sleeve tooling, including two relatively arranged hydraulic cylinder seats, and a horizontally arranged hydraulic cylinder is installed in the hydraulic cylinder seat so as to be adjustable up and down. The hydraulic cylinder passes through the inner wall and the outer wall of the hydraulic cylinder seat, and the cylinder rods of the two hydraulic cylinders are coaxially arranged opposite to each other. A pressure plate is fixedly installed at the end of the cylinder rod of the hydraulic cylinder, and the pressure plate is located outside the inner wall of the hydraulic cylinder seat. The two hydraulic cylinders are respectively connected with a synchronization valve; it also includes a conveying bracket located between the two hydraulic cylinder seats, and a roller conveying surface for conveying the lifter and the sleeve is installed on the top platform of the conveying bracket, and a pulling rod is installed between the tops of the two hydraulic cylinder seats. Tightening beam; The beneficial effect of the utility model is: the sleeves are pre-installed at both ends of the lifter, and then placed on the roller conveying surface, the lifter is pushed, and as the roller moves forward, when it moves between the two hydraulic cylinders, the hydraulic cylinder is started, and under the action of the synchronization valve, the two hydraulic cylinders synchronously compress the middle sleeve, and press the sleeve pre-installed on the lifter onto the lifter, and then the installed lifter is manually moved backwards, and then the next lifter and sleeve are compressed. The utility model has a simple structure, can quickly and stably press the sleeve into the lifter, and can match the workshop assembly line, which greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0014] Figure 1 This is one of the structural schematic diagrams of the utility model lifter press-in sleeve tooling;

[0015] Figure 2 This is the second structural schematic diagram of the utility model lifter press-in sleeve tooling;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model of the lifter pressed into the shaft sleeve tooling in the high position assembly state;

[0017] Figure 4 yes Figure 3 Sectional view along AA direction;

[0018] Figure 5 It is a schematic diagram of the structure of the utility model of the lifter pressed into the shaft sleeve tooling in the low position assembly state;

[0019] Figure 6 yes Figure 5 Cross-sectional view along the BB direction;

[0020] Figure 7 It is a top view of the utility model lifter press-fitting shaft sleeve tooling;

[0021] Figure 8 yes Figure 3 C-direction view in.

[0022] In the figure: 1-hydraulic cylinder seat; 11-inner wall; 12-outer wall; 13-positioning hole; 14-long slot hole; 2-hydraulic cylinder; 21-pressing plate; 22-mounting plate; 23-mounting hole; 3-synchronizing valve; 4-transmission bracket; 5-roller transmission surface; 6-tensioning beam; 7-lifter support plate. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0024] like Figures 1 to 8As shown in common, the lifter is pressed into the sleeve tooling, including two hydraulic cylinder seats 1 arranged opposite to each other, and a horizontally arranged hydraulic cylinder 2 is installed in the hydraulic cylinder seat 1 so as to be adjustable up and down, and the hydraulic cylinder 2 passes through the inner wall 11 and the outer wall 12 of the hydraulic cylinder seat 1, and the cylinder rods of the two hydraulic cylinders 2 are coaxially arranged opposite to each other, and a pressure plate 21 is fixedly installed at the end of the cylinder rod of the hydraulic cylinder 2, and the pressure plate 21 is located outside the inner wall 11 of the hydraulic cylinder seat 1, and the two hydraulic cylinders 2 are respectively connected with a synchronization valve 3; it also includes a conveying bracket 4 located between the two hydraulic cylinder seats 1, and a roller conveying surface 5 for conveying the lifter and the sleeve is installed on the top platform of the conveying bracket 4, and the two hydraulic A tensioning beam 6 is installed between the tops of the cylinder seats 1; the sleeves are pre-installed at both ends of the lifter and then placed on the roller conveying surface 5, the lifter is pushed, and as the roller moves forward, when it moves between the two hydraulic cylinders 2, the hydraulic cylinder 2 is started, and under the action of the synchronization valve 3, the two hydraulic cylinders 2 are synchronously compressed toward the middle sleeve, and the sleeve pre-installed on the lifter is pressed onto the lifter, and then the installed lifter is manually moved backwards, and then the next lifter and sleeve are compressed. The utility model has a simple structure, can quickly and stably press the sleeve into the lifter, and can match the workshop assembly line, which greatly improves work efficiency.

[0025] like Figure 1 and Figure 2 As shown in common, a mounting plate 22 is provided around the outer wall of the cylinder barrel of the hydraulic cylinder 2. The mounting plate 22 is located outside the hydraulic cylinder seat 1 and is close to the outer wall 12 of the hydraulic cylinder seat 1. A plurality of mounting holes 23 are provided on the mounting plate 22. A plurality of positioning holes 13 used in conjunction with the mounting holes 23 are symmetrically provided on the inner wall 11 and the outer wall 12 of the hydraulic cylinder seat 1. Positioning bolts pass through the mounting holes 23, the positioning holes 13 on the outer wall 12 and the positioning holes 13 on the inner wall 11 from the outside of the hydraulic cylinder seat 1 in sequence, and are fixed by nuts to fix the hydraulic cylinder 2 at the set position of the hydraulic cylinder seat 1. The mounting plate 22 extends along the radial direction of the cylinder barrel. When the mounting plate 22 moves up and down, it drives the hydraulic cylinder 2 to move up and down. By aligning the mounting hole 23 with the positioning hole 13 to be matched and fixing it with the positioning bolt, the hydraulic cylinder 2 can be controlled at a desired height. This height is determined according to the height of the lifting frame and the shaft sleeve, so that the height of the cylinder rod of the hydraulic cylinder 2 just meets the height position of the shaft sleeve on the lifting frame. The positioning bolts penetrate the mounting plate 22 and penetrate the outer side wall 12 and the inner side wall 11, thereby enhancing the stability of the installation of the hydraulic cylinder 2. The positioning bolts and nuts are not shown in the figure because they are prior art and are not described in detail in the figure.

[0026] like Figure 3 and Figure 5As shown in the figure, the mounting plate 22 is a circular plate with a horizontal straight edge cut on the top, and two mounting holes 23 are respectively provided on the left and right sides of the mounting plate 22. The horizontal straight edge is cut on the top of the mounting plate 22 so that the mounting plate 22 will not interfere with the hydraulic cylinder seat 1 when it is in a high position. Two mounting holes 23 are provided on one side, which correspond to the positioning holes 13 respectively, to achieve positioning on both sides.

[0027] like Figure 1 and Figure 2 As shown in common, a vertical long slot hole 14 is provided on the inner side wall 11 of the hydraulic cylinder seat 1. The width of the long slot hole 14 is equal to the diameter of the cylinder rod. When the hydraulic cylinder 2 is located at the uppermost positioning hole 13, the top arc surface of the long slot hole 14 is tangent to the upper arc surface of the cylinder rod. When the hydraulic cylinder 2 is located at the lowermost positioning hole 13, the bottom arc surface of the long slot hole 14 is tangent to the lower arc surface of the cylinder rod. The long slot hole 14 facilitates the up and down movement of the cylinder rod, and also plays a role in limiting the highest and lowest positions. The width of the long slot hole 14 is adapted to the cylinder rod, which prevents the cylinder rod from shaking left and right in the long slot hole 14.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown in the figure, the diameter of the pressing plate 21 is larger than the outer diameter of the shaft sleeve. The diameter of the pressing plate 21 is set as large as possible, so that when the shaft sleeve is squeezed, it is not necessary to face the axis, which is convenient for operation.

[0029] like Figures 1 to 8 As shown in the figure, the cross section of the tension beam 6 is one of a semicircular, circular, and polygonal shape, and the two ends of the tension beam 6 are respectively welded and fixed to the top of the hydraulic cylinder seat 1, and there are more than one tension beam 6. The tension beam 6 is preferably arranged at the top of the hydraulic cylinder seat 1, because this will not affect the displacement of the lifter on the roller conveying surface 5. The installation of the tension beam 6 is to offset the reaction force generated by the hydraulic cylinder 2 squeezing the sleeve, to ensure that the distance between the two hydraulic cylinder seats 1 is not enlarged, and to ensure the stability of the work.

[0030] like Figure 1 , Figure 2 and Figure 7 As shown in the figure, the roller conveying surface 5 includes a plurality of rollers arranged in parallel, and the rollers can be rotated manually individually. Each roller can be rotated manually individually. When the lifter needs to be moved, it only needs to be gently pushed. The lifter moves forward under the rolling action of the rollers. When the lifter is not pushed, the lifter can stop positioning instantly, which is convenient for operation. No complicated positioning mechanism is required.

[0031] like Figure 1 , Figure 2 and Figure 7As shown in the figure, a plurality of lifter pallets 7 are laid on the roller conveying surface 5, and rubber pads are installed on the upper surface of the lifter pallets 7. The pallet lifter is set to protect the lifter from friction with the roller, causing the lifter to lose paint, etc. The rubber pad strengthens the protection of the lifter surface.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. The lifter is pressed into the sleeve tooling, which is characterized by: The invention comprises two hydraulic cylinder seats (1) arranged opposite to each other, wherein a horizontally arranged hydraulic cylinder (2) is installed in the hydraulic cylinder seats (1) so as to be adjustable in the upper and lower directions, wherein the hydraulic cylinder (2) passes through the inner wall (11) and the outer wall (12) of the hydraulic cylinder seat (1), wherein the cylinder rods of the two hydraulic cylinders (2) are arranged opposite to each other coaxially, wherein a pressure plate (21) is fixedly installed at the end of the cylinder rod of the hydraulic cylinder (2), wherein the pressure plate (21) is located outside the inner wall (11) of the hydraulic cylinder seat (1), and wherein the two hydraulic cylinders (2) are respectively connected to a synchronization valve (3); and further comprises a conveying bracket (4) located between the two hydraulic cylinder seats (1), wherein a roller conveying surface (5) for conveying a lifter and a shaft sleeve is installed on the top platform of the conveying bracket (4), and a tensioning beam (6) is installed between the tops of the two hydraulic cylinder seats (1).

2. The lifter press-in sleeve tooling according to claim 1, characterized in that: A mounting plate (22) is provided around the outer wall of the cylinder barrel of the hydraulic cylinder (2). The mounting plate (22) is located outside the hydraulic cylinder seat (1) and is in close contact with the outer wall (12) of the hydraulic cylinder seat (1). A plurality of mounting holes (23) are provided on the mounting plate (22). A plurality of groups of positioning holes (13) used in conjunction with the mounting holes (23) are symmetrically provided on the inner wall (11) and the outer wall (12) of the hydraulic cylinder seat (1). Positioning bolts are passed through the mounting holes (23), the positioning holes (13) on the outer wall (12), and the positioning holes (13) on the inner wall (11) from the outside of the hydraulic cylinder seat (1) in sequence and are fixed by nuts, thereby fixing the hydraulic cylinder (2) at a set position of the hydraulic cylinder seat (1).

3. The lifter press-in sleeve tooling according to claim 2, characterized in that: The mounting plate (22) is a circular plate with a horizontal straight edge cut on the top, and two mounting holes (23) are respectively provided on the left and right sides of the mounting plate (22).

4. The lifter press-in sleeve tooling according to claim 2, characterized in that: The inner wall (11) of the hydraulic cylinder seat (1) is provided with a vertical long slot hole (14), the width of which is equal to the diameter of the cylinder rod. When the hydraulic cylinder (2) is located at the uppermost position of the positioning hole (13), the top arc surface of the long slot hole (14) is tangent to the upper arc surface of the cylinder rod. When the hydraulic cylinder (2) is located at the lowermost position of the positioning hole (13), the bottom arc surface of the long slot hole (14) is tangent to the lower arc surface of the cylinder rod.

5. The lifter press-in sleeve tooling according to claim 1, characterized in that: The diameter of the pressing plate (21) is greater than the outer diameter of the shaft sleeve.

6. The lifter press-in sleeve tooling according to claim 1, characterized in that: The cross section of the tension beam (6) is one of a semicircular, circular, and polygonal shape, and both ends of the tension beam (6) are respectively welded and fixed to the top of the hydraulic cylinder seat (1), and more than one tension beam (6) is provided.

7. The lifter press-in sleeve tooling according to claim 1, characterized in that: The roller conveying surface (5) comprises a plurality of rollers arranged in parallel, and the rollers can be rotated manually individually.

8. The lifter pressing-in sleeve tooling according to any one of claims 1 to 7, characterized in that: A plurality of lifter support plates (7) are laid on the roller conveying surface (5), and a rubber pad is installed on the upper surface of the lifter support plates (7).

Images