Oil cylinder automatic telescopic device convenient to assemble

Abstract

The utility model discloses an automatic oil cylinder telescopic device convenient to assemble, and relates to the technical field of excavator arms, the automatic oil cylinder telescopic device comprises a machine arm mounting seat and an assembling frame, an excavator arm is fixedly arranged on the outer wall of the top of the machine arm mounting seat, a hydraulic oil pump is fixedly arranged on the outer wall of the top of the assembling frame, and a thread locking mechanism is arranged on the assembling frame. An L-shaped support is welded to the side wall of the assembling frame and provided with a cooling mechanism. According to the utility model, through the matching of the two positioning insertion blocks and the positioning insertion grooves, the assembly frame provided with the hydraulic oil pump can be inserted into the engine arm mounting seat, and then the two locking bolts are controlled by the thread locking mechanism to extend into the two locking grooves to realize locking, so that the assembly of the hydraulic oil cylinder is facilitated, and the assembly efficiency is improved; the three cooling fan blades can be driven by the driving assembly to rotate, so that the hydraulic oil pump can be rapidly cooled, the heat dissipation rate of the hydraulic oil pump is conveniently increased, and normal operation of the hydraulic oil pump is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator arms, in particular to an automatic telescopic device for an oil cylinder which is convenient to assemble. Background Art

[0002] At present, the movement of the excavator arm is mainly controlled by the extension and retraction of the oil cylinder installed thereon, and the automatic extension and retraction of the oil cylinder thereon is mainly controlled by the hydraulic oil pump and the oil pipe to supply oil into the oil cylinder. However, the hydraulic oil pump in the prior art has the problems of being difficult to assemble and difficult to cool down quickly. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides an easy-to-assemble automatic telescopic device for a cylinder. In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0004] An oil cylinder automatic telescopic device that is easy to assemble, comprising an arm mounting seat and an assembly frame, wherein an excavator arm is fixedly arranged on the top outer wall of the arm mounting seat, and a hydraulic oil pump is fixedly arranged on the top outer wall of the assembly frame;

[0005] The assembly frame is provided with a thread locking mechanism, and an L-shaped bracket is welded to the side wall of the assembly frame. The L-shaped bracket is provided with a cooling mechanism, and the cooling mechanism includes three cooling components distributed at equal distances and a driving component;

[0006] The thread locking mechanism includes an installation groove opened on one side of the assembly frame, a bidirectional screw rotatably installed in the installation groove, two centering rods symmetrically threaded on two opposite threaded ends of the bidirectional screw, and two locking pins welded in sequence on the outer walls of the adjacent sides of the two centering rods.

[0007] Preferably, a control hand wheel is fixedly connected to the outer wall of one end of the bidirectional screw, and the outer walls of the two centering rods are slidably connected to the inner wall of the mounting groove.

[0008] Preferably, two positioning blocks are symmetrically welded on the outer wall of the assembly frame, two positioning slots are symmetrically opened on one side of the arm mounting seat, and the two positioning blocks are respectively plugged into the two positioning slots.

[0009] Preferably, two locking grooves are symmetrically provided on two sides of the assembly frame, and two locking pins extend into the two locking grooves respectively.

[0010] Preferably, the three cooling components all include an air hole opened on an L-shaped bracket, a support rod welded in the air hole, a transmission shaft connected to the central inner wall of the support rod through a bearing, and a cooling fan blade fixedly mounted on the transmission shaft and located in the air hole.

[0011] Preferably, the driving assembly includes a U-shaped bracket welded to the rear outer wall of the L-shaped bracket, a driving motor fixed to the rear outer wall of the U-shaped bracket, a double-groove pulley fixedly mounted on one of the transmission shafts, and two single-groove pulleys fixedly mounted on the other two transmission shafts in sequence, the double-groove pulley is connected to the two single-groove pulleys in sequence through two belts, and the output shaft of the driving motor is coaxially fixedly connected to one of the transmission shafts through a coupling.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model can insert the assembly frame with the hydraulic oil pump installed on the machine arm mounting seat through the cooperation of two positioning plugs and positioning slots, and then control the two locking pins to extend into the two locking slots through the threaded locking mechanism to achieve locking, which facilitates the assembly of the hydraulic cylinder and improves the assembly efficiency;

[0014] 2. The utility model can rotate the three cooling blades through the driving of the driving assembly, so that the hydraulic oil pump can be quickly cooled, which is convenient for improving the heat dissipation rate of the hydraulic oil pump and ensuring the normal operation of the hydraulic oil pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model part;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the machine arm mounting seat in the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the cooling mechanism in the utility model.

[0019] In the figure: 1. Arm mounting base; 2. Assembly frame; 3. Excavator arm; 4. Hydraulic oil pump; 5. Mounting slot; 6. Bidirectional screw; 7. Centering rod; 8. Locking pin; 9. Control hand wheel; 10. Positioning plug; 11. Positioning slot; 12. Locking slot; 13. L-shaped bracket; 14. Support rod; 15. Drive shaft; 16. Cooling fan blade; 17. U-shaped bracket; 18. Drive motor; 19. Double-groove pulley; 20. Single-groove pulley. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Example 1, reference Figure 1-3 , an automatic telescopic device for a cylinder that is easy to assemble, comprising an arm mounting seat 1 and an assembly frame 2;

[0022] An excavator arm 3 is fixed to the top outer wall of the arm mounting seat 1 by bolts, and a hydraulic oil pump 4 is fixed to the top outer wall of the assembly frame 2 by bolts;

[0023] The assembly frame 2 is provided with a thread locking mechanism;

[0024] The thread locking mechanism includes a mounting groove 5 provided on one side of the assembly frame 2, a bidirectional screw 6 rotatably mounted in the mounting groove 5, two centering rods 7 symmetrically threaded on two opposite threaded ends of the bidirectional screw 6, and two locking latches 8 welded in sequence on the outer walls of adjacent sides of the two centering rods 7, a control hand wheel 9 is fixedly connected to the outer wall of one end of the bidirectional screw 6, and the outer walls of the two centering rods 7 are both slidably connected to the inner wall of the mounting groove 5;

[0025] Two positioning blocks 10 are symmetrically welded on the outer wall of the assembly frame 2, and two positioning slots 11 are symmetrically opened on one side of the arm mounting seat 1, and the two positioning blocks 10 are respectively plugged into the two positioning slots 11;

[0026] Two locking grooves 12 are symmetrically formed on both sides of the assembly frame 2, and two locking pins 8 extend into the two locking grooves 12 respectively;

[0027] In this embodiment, through the cooperation of two positioning blocks 10 and positioning slots 11, the assembly frame 2 equipped with the hydraulic oil pump 4 can be plugged into the arm mounting seat 1, and then the two locking pins 8 are controlled by the threaded locking mechanism to extend into the two locking grooves 12 to achieve locking, which facilitates the assembly of the hydraulic cylinder 4 and improves the assembly efficiency.

[0028] Example 2, reference Figure 2 and Figure 4 , This embodiment is optimized on the basis of embodiment 1, specifically: an automatic telescopic device for oil cylinder that is easy to assemble, and also includes a cooling mechanism;

[0029] An L-shaped bracket 13 is welded to the side wall of the assembly frame 2, and a cooling mechanism is arranged on the L-shaped bracket 13. The cooling mechanism includes three cooling components distributed at equal distances and a driving component;

[0030] The three cooling components all include an air hole opened on an L-shaped bracket 13, a support rod 14 welded in the air hole, a transmission shaft 15 connected to the central inner wall of the support rod 14 through a bearing, and a cooling fan blade 16 fixedly sleeved on the transmission shaft 15 and located in the air hole;

[0031] The driving assembly includes a U-shaped bracket 17 welded to the rear outer wall of the L-shaped bracket 13, a driving motor 18 fixed to the rear outer wall of the U-shaped bracket 17 by bolts, a double-groove pulley 19 fixedly mounted on one of the transmission shafts 15 located in the middle, and two single-groove pulleys 20 fixedly mounted on the other two transmission shafts 15 in sequence;

[0032] The double-groove pulley 19 is sequentially connected to the two single-groove pulleys 20 through two belts, and the output shaft of the drive motor 18 is coaxially fixedly connected to one of the transmission shafts 15 located in the middle through a coupling;

[0033] In this embodiment, the three cooling blades 16 can be rotated by driving the driving component, so that the hydraulic oil pump 4 can be quickly cooled, which is convenient for improving the heat dissipation rate of the hydraulic oil pump 4 and ensuring the normal operation of the hydraulic oil pump 4.

[0034] The working principle of this utility model:

[0035] First, during assembly, the two positioning blocks 10 are inserted into the two positioning slots 11, and then the bidirectional screw 6 is controlled to rotate by the control hand wheel 9, and then the two centering rods 7 control the two locking pins 8 to be centered and close together and inserted into the two locking slots 12 in sequence to achieve locking and fixing, which facilitates the assembly of the hydraulic cylinder 4 and improves the assembly efficiency;

[0036] Secondly, the double-groove pulley 19 and the cooling blades 16 on the transmission shaft 15 connected by the coupling are controlled to rotate by the driving motor 18, and then under the transmission action of the two belts, the other two single-groove pulleys 20 will control the cooling blades 16 on the other two transmission shafts 15 to rotate, and then the rotation of the three cooling blades 16 can achieve rapid cooling of the hydraulic oil pump 4, which is convenient for improving the heat dissipation rate of the hydraulic oil pump 4 and ensuring the normal operation of the hydraulic oil pump 4.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic telescopic oil cylinder device that is easy to assemble, comprising an arm mounting seat (1) and an assembly frame (2), wherein an excavator arm (3) is fixedly arranged on the top outer wall of the arm mounting seat (1), and a hydraulic oil pump (4) is fixedly arranged on the top outer wall of the assembly frame (2); It is characterized in that The assembly frame (2) is provided with a thread locking mechanism, and an L-shaped bracket (13) is welded to the side wall of the assembly frame (2), and the L-shaped bracket (13) is provided with a cooling mechanism, and the cooling mechanism includes three cooling components distributed at equal distances and a driving component; The thread locking mechanism comprises a mounting groove (5) provided on one side of the assembly frame (2), a bidirectional screw (6) rotatably mounted in the mounting groove (5), two centering rods (7) symmetrically threadedly connected to two opposite threaded ends of the bidirectional screw (6), and two locking latches (8) welded in sequence to the outer walls of adjacent sides of the two centering rods (7).

2. The easy-to-assemble automatic telescopic device of a cylinder according to claim 1, characterized in that: The outer wall of one end of the bidirectional screw (6) is fixedly connected to a control hand wheel (9), and the outer walls of the two centering rods (7) are both slidably connected to the inner wall of the mounting groove (5).

3. The easy-to-assemble automatic telescopic device of a cylinder according to claim 1, characterized in that: Two positioning blocks (10) are symmetrically welded on the outer wall of the assembly frame (2), and two positioning slots (11) are symmetrically opened on one side of the machine arm mounting seat (1), and the two positioning blocks (10) are respectively plugged into the two positioning slots (11).

4. The easy-to-assemble automatic telescopic device for oil cylinder according to claim 1, characterized in that: Two locking grooves (12) are symmetrically formed on two sides of the assembly frame (2), and two locking pins (8) extend into the two locking grooves (12) respectively.

5. The easy-to-assemble automatic telescopic device for oil cylinder according to claim 1, characterized in that: The three cooling components all include an air hole formed on an L-shaped bracket (13), a support rod (14) welded in the air hole, a transmission shaft (15) connected to and penetrating the central inner wall of the support rod (14) via a bearing, and a cooling fan blade (16) fixedly mounted on the transmission shaft (15) and located in the air hole.

6. The easy-to-assemble automatic telescopic device for oil cylinder according to claim 1, characterized in that: The driving assembly comprises a U-shaped bracket (17) welded to the rear outer wall of the L-shaped bracket (13), a driving motor (18) fixedly mounted on the rear outer wall of the U-shaped bracket (17), a double-groove pulley (19) fixedly mounted on one of the transmission shafts (15), and two single-groove pulleys (20) fixedly mounted on the other two transmission shafts (15) in sequence, the double-groove pulley (19) being sequentially connected to the two single-groove pulleys (20) through two belts, and the output shaft of the driving motor (18) being coaxially fixedly connected to one of the transmission shafts (15) through a coupling.

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