Dustproof flow guide hydraulic cylinder

Abstract

The utility model discloses a dustproof flow guide hydraulic cylinder, which belongs to the technical field of hydraulic cylinders and comprises a cylinder body, a piston rod and a cleaning component. The cleaning assembly comprises a dustproof box, a conical dustproof plate is installed on the inner wall of the lower end of the dustproof box, the inner walls of the two ends of the conical dustproof plate are attached to the surface of the piston rod, a cleaning ring is arranged at the upper end of the interior of the dustproof box and located on the surface of the piston rod, and a plurality of sets of cleaning brushes are evenly fixed to the inner side of the cleaning ring. A supporting mechanism is arranged between the surface of the cleaning ring and the inner wall of the dustproof box, and the bottom of the cleaning ring is connected with a transmission mechanism. According to the hydraulic oil cylinder, the dustproof box, the conical dustproof plate, the cleaning ring, the cleaning brush, the supporting mechanism and the transmission mechanism are used in cooperation, dust and small particles on the surface of the piston rod can be cleaned and collected, cleanliness of the interior of the cylinder body is guaranteed, and the sealing performance of the interior of the hydraulic oil cylinder and the purity of oil liquid are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a dustproof flow-guiding hydraulic cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] A Chinese patent with a publication (announcement) number of CN102003430B discloses a hydraulic cylinder, including a cylinder body, an external insulation device, a piston, a piston seal, a piston rod and an insulation material, wherein: the piston is a U-shaped structure, and the opening of the U-shaped structure is sealed and connected to the piston rod; a coolant inlet and a coolant outlet are provided on the piston rod at one end away from the piston; the piston rod is provided with a guide member, and the guide member divides the internal space of the piston rod into two parts of space, the two parts of space are closed at the end away from the piston, and are connected at the end close to the piston, and one part of the space is connected to the coolant inlet, and the other part of the space is connected to the coolant outlet.

[0004] The hydraulic cylinder involved in the above patent still has some obvious shortcomings in actual use. The device cannot clean the dust on the surface of the piston rod, which makes cleaning inconvenient. Therefore, we need to propose a dust-proof diversion hydraulic cylinder. Utility Model Content

[0005] The utility model aims to provide a dustproof flow-guiding hydraulic cylinder, which has a structure that is convenient for cleaning the surface of a piston rod, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust-proof flow-guiding hydraulic cylinder, comprising a cylinder body, one end of which is slidably connected to a piston rod, and a cleaning component for cleaning the surface of the piston rod is provided on the surface of the piston rod and located at one end of the cylinder body;

[0007] The cleaning assembly includes a dust box fixedly mounted on the top of the cylinder body and located on the surface of the piston rod, a conical dust plate is fixedly mounted on the inner wall of the lower end of the dust box, the inner walls of both ends of the conical dust plate are in contact with the surface of the piston rod, a cleaning ring is provided at the upper end of the dust box and located on the surface of the piston rod, a plurality of groups of cleaning brushes are evenly fixedly mounted on the inner side of the cleaning ring, a supporting mechanism is provided between the surface of the cleaning ring and the inner wall of the dust box, and a transmission mechanism is connected to the bottom of the cleaning ring.

[0008] Preferably, the support mechanism comprises an annular groove formed on the inner wall of the dustproof box, a support ring is adapted to be arranged inside the annular groove, and a surface of the support ring is slidably connected to an inner cavity of the annular groove.

[0009] Preferably, the support mechanism also includes several groups of support rods arranged between the outer side of the cleaning ring and the inner side of the support ring, one end of several groups of support rods is fixedly installed on the inner side of the support ring, and the other end of several groups of support rods is fixedly connected to the surface of the cleaning ring.

[0010] Preferably, the transmission mechanism comprises a fixing ring fixedly mounted on the surface of the piston rod, a connecting rod is fixedly mounted on one side of the surface of the fixing ring, and a rack is fixedly mounted on one end of the connecting rod.

[0011] Preferably, the transmission mechanism also includes a transmission rod rotatably connected to the inner wall of one side of the dustproof box, a gear is fixedly mounted on the surface of the transmission rod, the surface of the gear is adaptively arranged to the surface of the rack, and the gear and the rack are meshingly connected together.

[0012] Preferably, the transmission mechanism also includes a first bevel gear fixedly mounted on the bottom of the cleaning ring and a second bevel gear fixedly mounted on one end of the transmission rod, the surface of the second bevel gear is adapted to match the surface of the first bevel gear, and the first bevel gear and the second bevel gear are meshed and connected together.

[0013] Preferably, a piston is adapted to be arranged inside the cylinder body, an oil seal gasket is fixedly sleeved on the surface of the piston, the top of the piston is fixedly mounted on the bottom end of the piston rod, and oil inlet and outlet pipes are fixedly mounted on both ends of one side of the cylinder body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can clean and collect dust and tiny particles on the surface of the piston rod through the coordinated use of the dustproof box, the conical dustproof plate, the cleaning ring, the cleaning brush, the supporting mechanism and the transmission mechanism, thereby ensuring the cleanliness of the inside of the cylinder body and effectively improving the sealing inside the hydraulic cylinder and the purity of the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the support mechanism of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the transmission mechanism of the utility model.

[0020] In the figure: 1. cylinder body; 2. piston rod; 3. dust box; 4. conical dust plate; 5. cleaning ring; 6. cleaning brush; 7. supporting mechanism; 701. annular groove; 702. supporting ring; 703. supporting rod; 8. transmission mechanism; 801. fixing ring; 802. connecting rod; 803. rack; 804. transmission rod; 805. gear; 806. first conical gear; 807. second conical gear; 9. piston; 10. oil seal gasket; 11. oil inlet and outlet pipes. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a dust-proof flow-guiding hydraulic cylinder, comprising a cylinder body 1, a piston rod 2, a cleaning assembly, a piston 9, an oil seal gasket 10 and an oil inlet and outlet pipe 11.

[0023] Preferably, one end of the cylinder body 1 is slidably connected to a piston rod 2, and a cleaning component for cleaning the surface of the piston rod 2 is provided on the surface of the piston rod 2 and located at one end of the cylinder body 1. A piston 9 is adapted to be provided inside the cylinder body 1, and an oil seal gasket 10 is fixedly sleeved on the surface of the piston 9. The top of the piston 9 is fixedly installed on the bottom end of the piston rod 2, and oil inlet and outlet pipes 11 are fixedly installed at both ends of one side of the cylinder body 1.

[0024] Preferably, the cleaning assembly includes: a dust box 3, a conical dust plate 4, a cleaning ring 5, a cleaning brush 6, a supporting mechanism 7 and a transmission mechanism 8. The bottom of the dust box 3 is fixedly mounted on the top of the cylinder body 1, and the two ends of the dust box 3 are rotatably connected to the surface of the piston rod 2. The inner wall of the lower end of the dust box 3 is fixedly mounted with a conical dust plate 4, and the inner walls of the two ends of the conical dust plate 4 are in contact with the surface of the piston rod 2. A cleaning ring 5 is provided at the upper end of the dust box 3 and on the surface of the piston rod 2. Several groups of cleaning brushes 6 are evenly and fixedly mounted on the inner side of the cleaning ring 5. A supporting mechanism 7 is provided between the surface of the cleaning ring 5 and the inner wall of the dust box 3, and the bottom of the cleaning ring 5 is connected with a transmission mechanism 8.

[0025] Specifically, through the coordinated use of the dust box 3, the conical dust plate 4, the cleaning ring 5, the cleaning brush 6, the supporting mechanism 7 and the transmission mechanism 8, the cleaning ring 5 is connected to the dust box 3 by using the supporting mechanism 7, so that the cleaning brush 6 inside the cleaning ring 5 is close to the surface of the piston rod 2, and then the transmission mechanism 8 is used to control the cleaning ring 5 to rotate on the surface of the piston rod 2, so that the cleaning brush 6 cleans the dust on the surface of the piston rod 2, and then the conical dust plate 4 is used to perform secondary dust prevention on the connection between the piston rod 2 and the cylinder body 1, so that the dust and tiny particles on the surface of the piston rod 2 can be cleaned and collected, thereby ensuring the cleanliness of the inside of the cylinder body 1, and effectively improving the sealing inside the hydraulic cylinder and the purity of the oil.

[0026] Preferably, the supporting mechanism 7 comprises: an annular groove 701, a supporting ring 702 and a supporting rod 703, the annular groove 701 is opened on the inner wall of the dustproof box 3, the interior of the annular groove 701 is adapted to be provided with a supporting ring 702, the surface of the supporting ring 702 is slidingly connected to the inner cavity of the annular groove 701, and a plurality of groups of supporting rods 703 are arranged, and the plurality of groups of supporting rods 703 are evenly arranged between the outer side of the cleaning ring 5 and the inner side of the supporting ring 702, one end of the plurality of groups of supporting rods 703 is fixedly installed on the inner side of the supporting ring 702, and the other end of the plurality of groups of supporting rods 703 is fixedly connected to the surface of the cleaning ring 5.

[0027] Preferably, the transmission mechanism 8 includes: a fixed ring 801, a connecting rod 802, a rack 803, a transmission rod 804, a gear 805, a first bevel gear 806 and a second bevel gear 807. The inner wall of the fixed ring 801 is fixedly mounted on the surface of the piston rod 2, a connecting rod 802 is fixedly mounted on one side of the surface of the fixed ring 801, a rack 803 is fixedly mounted on one end of the connecting rod 802, one end of the transmission rod 804 is rotatably connected to the inner wall of one side of the dustproof box 3, and the surface of the transmission rod 804 is fixedly mounted. A gear 805 is fixedly installed, and the surface of the gear 805 is adapted to the surface of the rack 803, and the gear 805 and the rack 803 are meshed and connected together. One end of the first bevel gear 806 is fixedly installed on the bottom of the cleaning ring 5, and one side of the second bevel gear 807 is fixedly installed on one end of the transmission rod 804, and the surface of the second bevel gear 807 is adapted to the surface of the first bevel gear 806, and the first bevel gear 806 and the second bevel gear 807 are meshed and connected together.

[0028] Specifically, the inner wall of the fixing ring 801 is installed on the surface of the piston rod 2 through the coordinated use of the fixing ring 801, the connecting rod 802, the rack 803, the transmission rod 804, the gear 805, the first bevel gear 806 and the second bevel gear 807. When the piston rod 2 moves, the fixing ring 801 will move with it, and the fixing ring 801 will move with the rack 803 through the connecting rod 802, so that transmission occurs between the rack 803 and the gear 805, and then the gear 805 will rotate with the transmission rod 804, and then the transmission rod 804 controls the second bevel gear 807 to rotate, so that the second bevel gear 807 can drive the first bevel gear 806, and can control the cleaning ring 5 on the surface of the piston rod 2 to rotate, so that the cleaning brush 6 inside the cleaning ring 5 can clean the dust particles on the surface of the piston rod 2.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust-proof flow-guiding hydraulic cylinder, characterized in that: It comprises a cylinder body (1), one end of the cylinder body (1) is slidably connected to a piston rod (2), and a cleaning component for cleaning the surface of the piston rod (2) is provided on the surface of the piston rod (2) and located at one end of the cylinder body (1); The cleaning assembly comprises a dustproof box (3) fixedly mounted on the top of the cylinder body (1) and located on the surface of the piston rod (2); a conical dustproof plate (4) is fixedly mounted on the inner wall of the lower end of the dustproof box (3); the inner walls of both ends of the conical dustproof plate (4) are in contact with the surface of the piston rod (2); a cleaning ring (5) is arranged at the upper end of the dustproof box (3) and located on the surface of the piston rod (2); a plurality of groups of cleaning brushes (6) are evenly fixedly mounted on the inner side of the cleaning ring (5); a supporting mechanism (7) is arranged between the surface of the cleaning ring (5) and the inner wall of the dustproof box (3); and a transmission mechanism (8) is connected to the bottom of the cleaning ring (5).

2. A dust-proof flow-guiding hydraulic cylinder according to claim 1, characterized in that: The support mechanism (7) comprises an annular groove (701) formed on the inner wall of the dustproof box (3); a support ring (702) is adapted to be arranged inside the annular groove (701); and a surface of the support ring (702) is slidably connected to an inner cavity of the annular groove (701).

3. A dust-proof flow-guiding hydraulic cylinder according to claim 2, characterized in that: The support mechanism (7) further comprises a plurality of groups of support rods (703) arranged between the outer side of the cleaning ring (5) and the inner side of the support ring (702), one end of the plurality of groups of support rods (703) being fixedly mounted on the inner side of the support ring (702), and the other end of the plurality of groups of support rods (703) being fixedly connected to the surface of the cleaning ring (5).

4. The dust-proof flow-guiding hydraulic cylinder according to claim 1, characterized in that: The transmission mechanism (8) comprises a fixing ring (801) fixedly mounted on the surface of the piston rod (2), a connecting rod (802) fixedly mounted on one side of the surface of the fixing ring (801), and a rack (803) fixedly mounted on one end of the connecting rod (802).

5. The dust-proof flow-guiding hydraulic cylinder according to claim 4, characterized in that: The transmission mechanism (8) further comprises a transmission rod (804) rotatably connected to an inner wall of one side of the dustproof box (3); a gear (805) is fixedly mounted on the surface of the transmission rod (804); the surface of the gear (805) is adapted to match the surface of the rack (803), and the gear (805) and the rack (803) are meshed and connected together.

6. The dust-proof flow-guiding hydraulic cylinder according to claim 5, characterized in that: The transmission mechanism (8) further comprises a first bevel gear (806) fixedly mounted on the bottom of the cleaning ring (5) and a second bevel gear (807) fixedly mounted on one end of the transmission rod (804), wherein the surface of the second bevel gear (807) is matched with the surface of the first bevel gear (806), and the first bevel gear (806) and the second bevel gear (807) are meshed and connected together.

7. The dust-proof flow-guiding hydraulic cylinder according to claim 1, characterized in that: A piston (9) is adapted to be arranged inside the cylinder body (1), an oil seal gasket (10) is fixedly sleeved on the surface of the piston (9), the top of the piston (9) is fixedly mounted on the bottom end of the piston rod (2), and oil inlet and outlet pipes (11) are fixedly mounted on both ends of one side of the cylinder body (1).

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