Tail hook oil cylinder

Abstract

The utility model belongs to the technical field of tail hooks, and particularly relates to a tail hook oil cylinder which comprises a hydraulic cylinder, a hydraulic oil connecting pipe, an oil pump, a piston rod, a travel switch mechanism, a travel switch connecting piece, an abutting mechanism and a controller. The hydraulic cylinder is detachably connected with the travel switch body through the travel switch connecting piece, the side face of the travel switch body is hinged to the hinge block, the abutting mechanism comprises an elastic abutting rod and an abutting installation block, the abutting installation block is fixedly connected with the piston rod, a threaded hole is formed in the abutting installation block, and the elastic abutting rod is in threaded connection with the abutting installation block. The controller is in communication connection with the switch button and the oil pump; compared with the prior art, the utility model has the advantages and positive effects that the precision is high, the supply of hydraulic oil is cut off in time, the hydraulic impact of a hydraulic system can be reduced, the noise of the system is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of tail hooks, and in particular relates to a tail hook oil cylinder. Background Art

[0002] The tail hook is a component of a dump truck. The existing tail hook is generally hydraulically driven, and the existing tail hook cylinder often uses manual control for braking control. The control accuracy is low, it is difficult to meet the needs of complex scenes, the efficiency is low, and there will be certain noise, which will affect the surroundings. Therefore, there is an urgent need for a tail hook cylinder with high control accuracy and low system noise. Utility Model Content

[0003] In view of the above problems, the utility model provides a tail hook oil cylinder.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a tail hook oil cylinder, including a hydraulic cylinder, a hydraulic oil connecting pipe, an oil pump and a piston rod, the hydraulic cylinder and the oil pump are connected through the hydraulic oil connecting pipe, the piston rod and the length direction of the hydraulic cylinder are both horizontal, and also includes a travel switch mechanism, a travel switch connecting piece, a push mechanism and a controller;

[0005] The travel switch mechanism comprises a travel switch body, an articulated block and a switch button, the hydraulic cylinder is detachably connected to the travel switch body through a travel switch connecting piece, the side surface of the travel switch body is articulated with the articulated block, and the switch button is installed on the side surface of the travel switch body close to the articulated block;

[0006] The push mechanism comprises an elastic push rod and a push mounting block, wherein the push mounting block is fixedly connected to the piston rod, a threaded hole is provided on the push mounting block, and the elastic push rod and the push mounting block are threadedly connected;

[0007] The controller is connected in communication with the switch button, and the controller is connected in communication with the oil pump.

[0008] Preferably, the elastic push rod includes a threaded rod portion and an elastic push top portion, the threaded rod portion and the elastic push top portion are fixedly connected, the length direction of the threaded rod portion is horizontal, the threaded rod portion is threadedly connected to the push mounting block, the switch button is columnar, and the switch button and the threaded rod portion are coaxial.

[0009] Preferably, the articulated block comprises a rigid articulated portion, an arcuate portion and an elastic buffer pad, the rigid articulated portion is articulated to the side of the travel switch body, the side of the rigid articulated portion away from the travel switch body is fixedly connected to the elastic buffer pad, and the arcuate portion and the rigid articulated portion are detachably connected.

[0010] Preferably, the travel switch mechanism further comprises a support spring, a slot is provided on the side of the travel switch body, the support spring is detachably connected to the slot, and one end of the support spring away from the bottom of the slot is detachably connected to the rigid hinge part.

[0011] Preferably, the hydraulic cylinder comprises a hydraulic cylinder body and a mounting member, and the mounting member is mounted on a side surface of the hydraulic cylinder body.

[0012] Preferably, the number of the mounting parts is two.

[0013] Preferably, the piston rod comprises a piston rod body and a first tail hook, the piston rod body and the first tail hook are fixedly connected, and one end of the piston rod body away from the first tail hook is slidably connected to the hydraulic cylinder body.

[0014] Preferably, it further comprises a second tail hook, wherein the second tail hook is mounted on the piston rod body.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] (1) The controller is connected to the switch button and the oil pump. Automatic control is faster and more efficient than manual control. Cutting off the hydraulic oil supply in time can reduce the hydraulic shock of the hydraulic system, reduce system noise and increase service life.

[0017] (2) A threaded hole is provided on the top mounting block, and the elastic top mounting rod and the top mounting block are threadedly connected. The return position is adjustable, which makes assembly more flexible and has more usage scenarios.

[0018] (3) The side of the rigid hinged part away from the travel switch body is fixedly connected to the elastic buffer pad. The elastic push rod first contacts the arc portion. When the elastic push rod runs between the arc portion and the elastic buffer pad, the rigid hinged part contacts the switch button. The switch button sends a signal to the controller, and the controller controls the oil pump to stop delivering hydraulic oil. During this process, the rigid hinged part does not deform, so more precise control is achieved. At this time, due to inertia, the elastic push rod and the piston rod still have a slight movement or movement tendency. The slight movement causes the elastic push rod to change from contacting the arc portion to contacting the elastic buffer pad. At this time, the elastic buffer pad plays a buffering role, reduces noise, avoids impacting the travel switch mechanism, and increases the actual service life;

[0019] (4) The switch button and the threaded rod are coaxial, which makes the force more even, reduces the hydraulic shock of the hydraulic system, and thus reduces the system noise;

[0020] (5) The first tail hook and the second tail hook are evenly stressed with the hook-pull connection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for describing the embodiment:

[0022] Figure 1 This is the front view of the tail hook cylinder;

[0023] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0024] Figure 3 A three-dimensional diagram of the tail hook cylinder Figure 1 ;

[0025] Figure 4 for Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0026] Figure 5 A three-dimensional diagram of the tail hook cylinder Figure 2 ;

[0027] Figure 6 This is a top view of the tail hook cylinder;

[0028] Figure 7 Schematic diagram of the tail hook cylinder travel switch mechanism Figure 1 ;

[0029] Figure 8 Schematic diagram of the tail hook cylinder travel switch mechanism Figure 2 .

[0030] Reference numerals:

[0031] 1—hydraulic cylinder, 11—hydraulic cylinder body, 12—mounting part;

[0032] 2—travel switch mechanism, 21—travel switch body, 22—hinge block, 23—switch button, 24—support spring, 25—rigid hinge portion, 26—arc portion, 27—elastic buffer pad;

[0033] 3—piston rod, 31—piston rod body, 32—first tail hook;

[0034] 4—travel switch connector;

[0035] 5—Second tail hook;

[0036] 6—abutting mechanism, 61—an elastic abutting rod, 62—abutting mounting block, 63—a threaded rod, 64—an elastic abutting top portion. DETAILED DESCRIPTION

[0037] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0039] Example 1

[0040] Combine the following Figures 1 to 8 Specific description of the tail hook cylinder, such as Figure 5 and Figure 6 As shown, a tail hook cylinder includes a hydraulic cylinder 1, a hydraulic oil connecting pipe, an oil pump and a piston rod 3. The hydraulic cylinder 1 and the oil pump are connected through the hydraulic oil connecting pipe. The piston rod 3 and the hydraulic cylinder 1 are both horizontal in length direction. The piston rod 3 is slidably connected to the hydraulic cylinder 1. It also includes a travel switch mechanism 2, a travel switch connecting piece 4, a push mechanism 6 and a controller.

[0041] like Figure 1 and Figure 2 As shown, the travel switch mechanism 2 includes a travel switch body 21, a hinge block 22 and a switch button 23. The hydraulic cylinder 1 is detachably connected to the travel switch body 21 through a travel switch connector 4. The side of the travel switch body 21 is hinged to the hinge block 22. The switch button 23 is installed on the side of the travel switch body 21 close to the hinge block 22.

[0042] like Figure 2 , Figure 3 and Figure 4 As shown, the push mechanism 6 includes an elastic push rod 61 and a push mounting block 62. The push mounting block 62 is fixedly connected to the piston rod 3. A threaded hole is provided on the push mounting block 62. The elastic push rod 61 and the push mounting block 62 are threadedly connected.

[0043] The controller is connected in communication with the switch button 23 , and the controller is connected in communication with the oil pump.

[0044] like Figure 2 As shown, the elastic push rod 61 includes a threaded rod portion 63 and an elastic push top portion 64, the threaded rod portion 63 and the elastic push top portion 64 are fixedly connected, the length direction of the threaded rod portion 63 is horizontal, the threaded rod portion 63 is threadedly connected to the push mounting block 62, the switch button 23 is columnar, and the switch button 23 and the threaded rod portion 63 are coaxial.

[0045] like Figure 7 and Figure 8 As shown, the hinge block 22 includes a rigid hinge portion 25, an arc portion 26 and an elastic buffer pad 27. The rigid hinge portion 25 is hinged to the side of the travel switch body 21. The side of the rigid hinge portion 25 away from the travel switch body 21 is fixedly connected to the elastic buffer pad 27, and the arc portion 26 and the rigid hinge portion 25 are detachably connected.

[0046] like Figure 8 As shown, the travel switch mechanism 2 also includes a support spring 24. A slot is provided on the side of the travel switch body 21. The support spring 24 is detachably connected to the slot. One end of the support spring 24 away from the bottom of the slot is detachably connected to the rigid hinge part 25.

[0047] like Figure 3 As shown, the hydraulic cylinder 1 includes a hydraulic cylinder body 11 and a mounting member 12 , and the mounting member 12 is mounted on the side of the hydraulic cylinder body 11 .

[0048] like Figure 3 As shown, there are two mounting members 12 .

[0049] like Figure 1 As shown, the piston rod 3 includes a piston rod body 31 and a first tail hook 32 , the piston rod body 31 and the first tail hook 32 are fixedly connected, and one end of the piston rod body 31 away from the first tail hook 32 is slidably connected to the hydraulic cylinder barrel 11 .

[0050] like Figure 1 As shown, it also includes a second tail hook 5, which is installed on the piston rod body 31.

[0051] Working principle of tail hook cylinder:

[0052] The controller sends a signal to the oil pump, and the hydraulic oil in the hydraulic cylinder body 11 flows into the hydraulic oil connecting pipe, thereby driving the piston rod body 31 to move in the direction close to the second tail hook 5. Since the first tail hook 32 is slidably connected to the piston rod body 31, the distance between the first tail hook 32 and the second tail hook 5 is shortened. When the piston rod body 31 runs to a certain distance, the elastic abutting top 64 of the elastic abutting rod 61 will contact the arc portion 26 of the hinge block 22. When the elastic abutting top 64 runs between the arc portion 26 and the elastic buffer pad 27, the rigid hinge portion 25 contacts the switch button 23, and the switch button 23 sends a signal to the controller. The controller controls the oil pump to stop delivering hydraulic oil. During this process, the rigid hinge portion 25 does not deform, thereby achieving precise control. At this time, due to the inertia, the whole composed of the elastic abutting rod 61 and the piston rod 3 still has a slight movement or movement tendency, thereby driving the elastic abutting rod 61 to run to the elastic buffer pad 27. At this time, the elastic buffer pad 27 plays a buffering role, reduces noise, and achieves noise reduction and shock absorption on the basis of precise control.

[0053] As the technical solution of the utility model, the hardware setting provided is only for the purpose of facilitating the realization of braking control based on the hardware facilities. How to realize braking control and braking control method specifically is not the technical problem to be solved and the object to be protected by the utility model. At the same time, the communication methods between the devices adopt the existing communication methods, which are not the utility model points of the present application.

[0054] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A tail hook oil cylinder, comprising a hydraulic cylinder (1), a hydraulic oil connecting pipe, an oil pump and a piston rod (3), wherein the hydraulic cylinder (1) and the oil pump are connected via the hydraulic oil connecting pipe, and the piston rod (3) and the hydraulic cylinder (1) are both horizontal in length direction, characterized in that: It also includes a travel switch mechanism (2), a travel switch connecting piece (4), a push-up mechanism (6) and a controller; The travel switch mechanism (2) comprises a travel switch body (21), a hinge block (22) and a switch button (23); the hydraulic cylinder (1) is detachably connected to the travel switch body (21) via a travel switch connector (4); a side surface of the travel switch body (21) is hinged to the hinge block (22); and the switch button (23) is mounted on a side surface of the travel switch body (21) close to the hinge block (22); The push mechanism (6) comprises an elastic push rod (61) and a push mounting block (62), the push mounting block (62) being fixedly connected to the piston rod (3), a threaded hole being provided on the push mounting block (62), and the elastic push rod (61) and the push mounting block (62) being threadedly connected; The controller is communicatively connected to the switch button (23), and the controller is communicatively connected to the oil pump.

2. The tail hook cylinder according to claim 1, characterized in that: The elastic abutting rod (61) comprises a threaded rod portion (63) and an elastic abutting top portion (64); the threaded rod portion (63) and the elastic abutting top portion (64) are fixedly connected; the threaded rod portion (63) is horizontal in length; the threaded rod portion (63) is threadedly connected to the abutting mounting block (62); the switch button (23) is columnar; and the switch button (23) and the threaded rod portion (63) are coaxial.

3. The tail hook oil cylinder according to claim 1, characterized in that: The hinge block (22) comprises a rigid hinge portion (25), an arc portion (26) and an elastic buffer pad (27); the rigid hinge portion (25) is hinged to the side of the travel switch body (21); the side of the rigid hinge portion (25) away from the travel switch body (21) is fixedly connected to the elastic buffer pad (27); and the arc portion (26) and the rigid hinge portion (25) are detachably connected.

4. The tail hook cylinder according to claim 3, characterized in that: The travel switch mechanism (2) further comprises a support spring (24); a slot is provided on the side of the travel switch body (21); the support spring (24) is detachably connected to the slot; and one end of the support spring (24) away from the bottom surface of the slot is detachably connected to the rigid hinge portion (25).

5. The tail hook cylinder according to claim 1, characterized in that: The hydraulic cylinder (1) comprises a hydraulic cylinder body (11) and a mounting member (12), wherein the mounting member (12) is mounted on a side surface of the hydraulic cylinder body (11).

6. The tail hook cylinder according to claim 5, characterized in that: The number of the mounting parts (12) is two.

7. The tail hook cylinder according to claim 5, characterized in that: The piston rod (3) comprises a piston rod body (31) and a first tail hook (32); the piston rod body (31) and the first tail hook (32) are fixedly connected; and one end of the piston rod body (31) away from the first tail hook (32) is slidably connected to the hydraulic cylinder body (11).

8. The tail hook oil cylinder according to claim 7, characterized in that: It also includes a second tail hook (5), wherein the second tail hook (5) is mounted on the piston rod body (31).

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