Hydraulic oil cylinder for adjusting movable arm of loading machine

Abstract

The utility model discloses a hydraulic oil cylinder for adjusting a movable arm of a loading machine, and relates to the technical field of hydraulic oil cylinders. A piston rod is arranged in the cylinder body shell, the outer surface of the cylinder body shell is fixedly connected with a limiting assembly, the cylinder body shell is fixedly connected with a heat conduction assembly through the limiting assembly, the outer surface of the heat conduction assembly is slidably connected with a cooling assembly, and the outer surface of the cooling assembly is fixedly connected with a connecting assembly. Through connection of the heat conduction assembly and the cooling assembly, heat generated by friction between the piston rod and the cylinder body shell is transmitted to the heat conduction assembly, the heat conduction assembly increases the contact area of the cylinder body shell and external air, and heat dissipation is facilitated; the cooling assembly can move along with the position of the piston on the piston rod, additional cooling and heat dissipation treatment is carried out on the friction position of the piston on the piston rod and the cylinder body shell, and thermal deformation of the cylinder body shell and the piston rod is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic cylinders. Specifically, it particularly relates to a hydraulic cylinder for regulating the boom of a loader. Background Technique

[0002] A loader is an earthwork construction machine widely used in construction projects such as highways, railways, buildings, hydropower, ports, mines, etc. It is mainly used for shoveling bulk materials such as soil, sand, gravel, lime, coal, etc., and can also perform light shoveling operations on ores, hard soil, etc. The boom is a working device of the loader, usually also called the jib, and its main function is to control the bucket to perform various actions.

[0003] In the prior art, the boom is commonly driven by a hydraulic cylinder. A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion or swinging motion, and has advantages such as smooth transmission and no clearance. However, when the hydraulic oil in the hydraulic cylinder pushes the piston rod to move, the piston rod will rub against the inner wall of the hydraulic cylinder, thereby generating heat. When the heat is relatively large, it will cause thermal deformation of equipment such as the hydraulic cylinder and the piston rod, resulting in its inability to work properly.

[0004] In response to the problems in the related art, no effective solution has been proposed yet. Content of the Utility Model

[0005] In response to the problems in the related art, the utility model proposes a hydraulic cylinder for regulating the boom of a loader to overcome the above-mentioned technical problems existing in the prior related art.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a hydraulic cylinder for regulating the boom of a loader, including a cylinder housing. A piston rod is arranged inside the cylinder housing. A limiting component is fixedly connected to the outer surface of the cylinder housing. The cylinder housing is fixedly connected to a heat conduction component through the limiting component. A cooling component is slidably connected to the outer surface of the heat conduction component. A connecting component is fixedly connected to the outer surface of the cooling component. The connecting component is fixedly connected to the piston rod. The limiting component is used to fix the heat conduction component. The heat conduction component is used to conduct the heat of the cylinder housing. The cooling component is used to cool the heat conduction component and the cylinder housing. The connecting component is used to drive the cooling component to move by the piston rod.

[0008] Further, the limiting component includes a first half-ring. A first bolt is threadedly connected to the outer surface of the first half-ring. The first half-ring is fixedly connected to a second half-ring through the first bolt. Both the first half-ring and the second half-ring are clamped on the outer surface of the cylinder housing. Both the first half-ring and the second half-ring are used to limit and fix the heat conduction component.

[0009] Furthermore, the heat conduction component includes a heat conduction sleeve which is sleeved on the outer surface of the cylinder housing. There are two groups of the first half-rings and the second half-rings, and the two groups of the first half-rings and the second half-rings are respectively located at both ends of the heat conduction sleeve. The outer surface of the heat conduction sleeve is fixedly connected with fins, and round holes and square grooves are formed on the outer surface of the fins, and the round holes and the square grooves communicate with each other.

[0010] Furthermore, the cooling component includes a sliding seat, the outer surface of the sliding seat is fixedly connected with a connecting pipe, a water passing groove is formed inside the sliding seat, the water passing groove communicates with the connecting pipe, and the sliding seat is slidably connected to the outer surfaces of the heat conduction sleeve and the fins.

[0011] Furthermore, the connecting component includes a connecting seat which is fixedly connected to the outer surface of the piston rod. A second bolt is threadedly connected to the top of the connecting seat, and the connecting seat is fixedly connected with a connecting rod through the second bolt, and the connecting rod is fixedly connected to the outer surface of the sliding seat.

[0012] Furthermore, positioning rings are fixedly connected to the outer surfaces of the first half-ring and the second half-ring, positioning grooves matching with the positioning rings are formed on the outer surface of the cylinder housing, and the positioning rings are inserted into the positioning grooves.

[0013] Furthermore, fixing rings are fixedly connected to the ends of the cylinder housing and the piston rod.

[0014] The utility model has the following beneficial effects:

[0015] 1. Through the connection of the heat conduction component and the cooling component, the heat generated by the friction between the piston rod and the cylinder housing is transferred to the heat conduction component. The heat conduction component increases the contact area between the cylinder housing and the external air, facilitating the dissipation of heat. At the same time, when the piston rod moves, it will drive the cooling component, and the cooling component can move along with the position of the piston on the piston rod, and perform additional cooling and heat dissipation treatment on the position where the piston on the piston rod rubs against the cylinder housing, avoiding thermal deformation of the cylinder housing and the piston rod.

[0016] 2. Through the connection of the sliding seat and the heat conduction sleeve, the heat dissipation area of the cylinder housing is increased by the heat conduction sleeve and the fins. When the external cold air passes through the round holes and the square grooves on the fins, the heat on the fins can be quickly taken away. When the piston on the piston rod moves inside the cylinder housing, the piston rod drives the sliding seat to move synchronously. The position of the sliding seat corresponds to the position of the piston, and water cooling can be performed on the position of the piston, avoiding the situation that the cylinder housing and the piston rod are damaged due to thermal deformation.

[0017] Certainly, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the external contour structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the first half-ring structure of the present utility model;

[0021] Figure 3 It is a schematic diagram of the heat-conducting sleeve structure of the present utility model;

[0022] Figure 4 It is a schematic diagram of the sectional structure of the sliding seat of the present utility model;

[0023] Figure 5 For the present utility model Figure 1 It is an enlarged schematic diagram of the structure at position A;

[0024] Figure 6 For the present utility model Figure 1 It is an enlarged schematic diagram of the structure at position B.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Cylinder housing; 2. Piston rod; 3. Limit assembly; 301. First half-ring; 302. First bolt; 303. Second half-ring; 4. Heat-conducting assembly; 401. Heat-conducting sleeve; 402. Fins; 403. Round hole; 404. Square groove; 5. Cooling assembly; 501. Sliding seat; 502. Connecting pipe; 503. Water channel; 6. Connecting assembly; 601. Connecting seat; 602. Second bolt; 603. Connecting rod; 7. Positioning ring; 8. Positioning groove; 9. Fixed ring. Detailed Description of the Preferred Embodiments

[0027] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the utility model.

[0028] In the description of the present utility model, it should be understood that terms such as "opening", "upper", "lower", "top", "middle", "inner", etc., indicating orientation or positional relationships are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the utility model.

[0029] Please refer to Figures 1-6 As shown, the present utility model is a hydraulic cylinder for adjusting the boom of a loader, including a cylinder body housing 1. A piston rod 2 is arranged inside the cylinder body housing 1. A limit component 3 is fixedly connected to the outer surface of the cylinder body housing 1. The cylinder body housing 1 is fixedly connected to a heat conduction component 4 through the limit component 3. A cooling component 5 is slidably connected to the outer surface of the heat conduction component 4. A connection component 6 is fixedly connected to the outer surface of the cooling component 5. The connection component 6 is fixedly connected to the piston rod 2. The limit component 3 is used to fix the heat conduction component 4. The heat conduction component 4 is used to conduct the heat of the cylinder body housing 1. The cooling component 5 is used to cool the heat conduction component 4 and the cylinder body housing 1. The connection component 6 is used to make the piston rod 2 drive the cooling component 5 to move.

[0030] The hydraulic oil in the cylinder body housing 1 pushes the piston rod 2 to move. The heat generated by the friction between the piston rod 2 and the cylinder body housing 1 during movement is transferred to the heat conduction component 4. At the same time, the piston rod 2 drives the cooling component 5 to move along the heat conduction component 4 to cool the main heat-generating parts. When the heat conduction efficiency of the heat conduction component 4 decreases after long-term use, the limit component 3 is removed to release the limit fixation of the heat conduction component 4, and the heat conduction component 4 can be removed from the cylinder body housing 1 for replacement.

[0031] Through the connection of the heat conduction component 4 and the cooling component 5 in the present utility model, the heat generated by the friction between the piston rod 2 and the cylinder body housing 1 is transferred to the heat conduction component 4. The heat conduction component 4 increases the contact area between the cylinder body housing 1 and the outside air, facilitating the dissipation of heat. At the same time, when the piston rod 2 moves, it will drive the cooling component 5, and the cooling component 5 can move along with the position of the piston on the piston rod 2 to perform additional cooling and heat dissipation treatment on the position where the piston on the piston rod 2 rubs against the cylinder body housing 1, avoiding thermal deformation of the cylinder body housing 1 and the piston rod 2.

[0032] In one embodiment, for the above-mentioned limit component 3, the limit component 3 includes a first half-ring 301. A first bolt 302 is threadedly connected to the outer surface of the first half-ring 301. The first half-ring 301 is fixedly connected to a second half-ring 303 through the first bolt 302. Both the first half-ring 301 and the second half-ring 303 are clamped on the outer surface of the cylinder body housing 1. Both the first half-ring 301 and the second half-ring 303 are used to limit and fix the heat conduction component 4.

[0033] Snap the first half-ring 301 and the second half-ring 303 onto the outer surface of the cylinder housing 1, and fix the first half-ring 301 and the second half-ring 303 through the bolt 302, so that the first half-ring 301 and the second half-ring 303 are clamped on the outer surface of the cylinder housing 1 to prevent unnecessary movement.

[0034] In one embodiment, for the above heat conduction component 4, the heat conduction component 4 includes a heat conduction sleeve 401, the heat conduction sleeve 401 is sleeved on the outer surface of the cylinder housing 1, there are two groups of the first half-ring 301 and the second half-ring 303, and the two groups of the first half-ring 301 and the second half-ring 303 are respectively located at both ends of the heat conduction sleeve 401. The outer surface of the heat conduction sleeve 401 is fixedly connected with fins 402, and round holes 403 and square grooves 404 are formed on the outer surface of the fins 402, and the round holes 403 and the square grooves 404 communicate with each other.

[0035] When the first half-ring 301 and the second half-ring 303 are fixed, the heat conduction sleeve 401 clamped between the two groups of the first half-ring 301 and the second half-ring 303 will also be fixed. The heat on the cylinder housing 1 is transferred to the heat conduction sleeve 401, and the heat conduction sleeve 401 and the fins 402 increase the heat dissipation area. When the outside cold air passes through the round holes 403 and the square grooves 404 on the fins 402, the heat on the fins 402 will be carried away, so as to achieve the purpose of heat dissipation.

[0036] In one embodiment, for the above cooling component 5, the cooling component 5 includes a sliding seat 501, the outer surface of the sliding seat 501 is fixedly connected with a connecting pipe 502, a water through-channel 503 is formed inside the sliding seat 501, the water through-channel 503 communicates with the connecting pipe 502, and the sliding seat 501 is slidably connected to the outer surfaces of the heat conduction sleeve 401 and the fins 402.

[0037] The connecting pipe 502 is externally connected with a cooling water tank, and the coolant in the cooling water tank is conveyed from the connecting pipe 502 to the water through-channel 503 in the sliding seat 501, and the sliding seat 501 contacts with the heat conduction sleeve 401 and the fins 402 to cool them.

[0038] In one embodiment, for the above connecting component 6, the connecting component 6 includes a connecting seat 601, the connecting seat 601 is fixedly connected to the outer surface of the piston rod 2, a second bolt 602 is threadedly connected to the top of the connecting seat 601, the connecting seat 601 is fixedly connected with a connecting rod 603 through the second bolt 602, and the connecting rod 603 is fixedly connected to the outer surface of the sliding seat 501.

[0039] The piston rod 2 drives the connecting seat 601 to move. The connecting seat 601 drives the sliding seat 501 to move through the second bolt 602 and the connecting rod 603. The sliding seat 501 corresponds to the position of the piston on the piston rod 2. When the piston rod 2 moves, the sliding seat 501 will also move accordingly, so as to realize the cooling treatment of the key heat-generating part. When the sliding seat 501 does not need to move, removing the second bolt 602 can make the sliding seat 501 no longer move with the piston rod 2.

[0040] In one embodiment, for the above-mentioned first half-ring 301, positioning rings 7 are fixedly connected to the outer surfaces of both the first half-ring 301 and the second half-ring 303. A positioning groove 8 matching the positioning ring 7 is formed on the outer surface of the cylinder housing 1, and the positioning ring 7 is inserted into the positioning groove 8.

[0041] In one embodiment, for the above-mentioned cylinder housing 1, fixing rings 9 are fixedly connected to the ends of both the cylinder housing 1 and the piston rod 2.

[0042] The fixing rings 9 on the cylinder housing 1 and the piston rod 2 are respectively used to connect the mounting seat and the driven boom. The positioning rings 7 on the first half-ring 301 and the second half-ring 303 are inserted into the positioning groove 8 on the cylinder housing 1, which can further prevent the first half-ring 301 and the second half-ring 303 from axially moving.

[0043] Through the above technical solutions: 1. Through the connection of the heat conduction component 4 and the cooling component 5, the heat generated by the friction between the piston rod 2 and the cylinder housing 1 is transferred to the heat conduction component 4. The heat conduction component 4 increases the contact area between the cylinder housing 1 and the outside air, facilitating the dissipation of heat. At the same time, when the piston rod 2 moves, it will drive the cooling component 5, and the cooling component 5 can move along with the position of the piston on the piston rod 2 to perform additional cooling and heat dissipation treatment on the position where the piston on the piston rod 2 rubs against the cylinder housing 1, avoiding thermal deformation of the cylinder housing 1 and the piston rod 2. 2. Through the connection of the sliding seat 501 and the heat conduction sleeve 401, the heat conduction sleeve 401 and the fins 402 increase the heat dissipation area of the cylinder housing 1. When the outside cold air passes through the round holes 403 and square grooves 404 on the fins 402, the heat on the fins 402 can be quickly taken away. When the piston on the piston rod 2 moves in the cylinder housing 1, the piston rod 2 drives the sliding seat 501 to move synchronously. The sliding seat 501 corresponds to the position of the piston, and the position of the piston can be cooled by water to avoid the situation that the cylinder housing 1 and the piston rod 2 are damaged due to thermal deformation.

[0044] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0045] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the utility model, so that those skilled in the art can well understand and utilize the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A hydraulic cylinder for adjusting a loader boom, comprising a cylinder housing (1), characterized in that: A piston rod (2) is arranged inside the cylinder housing (1); a limit assembly (3) is fixedly connected to the outer surface of the cylinder housing (1); the cylinder housing (1) is fixedly connected to a heat conducting assembly (4) via the limit assembly (3); a cooling assembly (5) is slidably connected to the outer surface of the heat conducting assembly (4); a connecting assembly (6) is fixedly connected to the outer surface of the cooling assembly (5); the connecting assembly (6) is fixedly connected to the piston rod (2); the limit assembly (3) is used to fix the heat conducting assembly (4); the heat conducting assembly (4) is used to conduct heat of the cylinder housing (1); the cooling assembly (5) is used to cool the heat conducting assembly (4) and the cylinder housing (1); and the connecting assembly (6) is used to enable the piston rod (2) to drive the cooling assembly (5) to move.

2. The hydraulic cylinder for adjusting the loader boom according to claim 1, characterized in that: The limiting assembly (3) comprises a first half ring (301), the outer surface of the first half ring (301) is threadedly connected to a first bolt (302), the first half ring (301) is fixedly connected to a second half ring (303) via the first bolt (302), the first half ring (301) and the second half ring (303) are both clamped on the outer surface of the cylinder housing (1), and the first half ring (301) and the second half ring (303) are both used to limit and fix the heat conduction assembly (4).

3. The hydraulic cylinder for adjusting the loader boom according to claim 2, characterized in that: The heat-conducting assembly (4) comprises a heat-conducting sleeve (401), the heat-conducting sleeve (401) being sleeved on the outer surface of the cylinder housing (1), the first half ring (301) and the second half ring (303) each having two groups, the two groups of the first half ring (301) and the second half ring (303) being respectively located at two ends of the heat-conducting sleeve (401), the outer surface of the heat-conducting sleeve (401) being fixedly connected with a fin (402), the outer surface of the fin (402) being provided with a circular hole (403) and a square groove (404), the circular hole (403) and the square groove (404) being interconnected.

4. The hydraulic cylinder for adjusting the loader boom according to claim 3, characterized in that: The cooling component (5) comprises a sliding seat (501), the outer surface of the sliding seat (501) is fixedly connected to a connecting pipe (502), a water groove (503) is provided inside the sliding seat (501), the water groove (503) and the connecting pipe (502) are interconnected, and the sliding seat (501) is slidably connected to the outer surfaces of the heat-conducting sleeve (401) and the fins (402).

5. The hydraulic cylinder for adjusting the loader boom according to claim 4, characterized in that: The connecting assembly (6) comprises a connecting seat (601), wherein the connecting seat (601) is fixedly connected to the outer surface of the piston rod (2), the top of the connecting seat (601) is threadedly connected to a second bolt (602), the connecting seat (601) is fixedly connected to a connecting rod (603) via the second bolt (602), and the connecting rod (603) is fixedly connected to the outer surface of the sliding seat (501).

6. The hydraulic cylinder for adjusting the loader boom according to claim 2, characterized in that: The outer surfaces of the first half ring (301) and the second half ring (303) are both fixedly connected with a positioning ring (7), and the outer surface of the cylinder housing (1) is provided with a positioning groove (8) matching the positioning ring (7), and the positioning ring (7) is plugged into the positioning groove (8).

7. The hydraulic cylinder for adjusting the loader boom according to claim 1, characterized in that: The cylinder housing (1) and the ends of the piston rod (2) are both fixedly connected with fixing rings (9).

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