Device for increasing supporting area of oil cylinder

Abstract

The utility model discloses a device for increasing the supporting area of an oil cylinder, which comprises a mounting seat and a cylinder barrel, a piston rod is arranged in the cylinder barrel, a piston is fixedly mounted below the piston rod, a guide sleeve is arranged in the cylinder barrel, the guide sleeve is slidably sleeved with the piston rod, a first extension sleeve is fixedly mounted below the guide sleeve, and a second extension sleeve is fixedly mounted below the first extension sleeve. A second extension sleeve is fixedly installed above the piston, the second extension sleeve is movably connected with the first extension sleeve in a clamped mode, the piston rod is sleeved with a fixing base, and two sets of supporting rods are symmetrically installed on the two sides of the fixing base; the overlapping part of the guide sleeve and the piston is lengthened through the first extension sleeve and the second extension sleeve which are arranged on the guide sleeve and the piston, the supporting area of the piston at the lower end of the piston rod in the oil cylinder is increased, and the working efficiency and the stability performance of the oil cylinder are effectively improved; and meanwhile, the stable performance support of piston movement in the whole working process of the oil cylinder is realized through the mounting seat sleeved outside the oil cylinder and the fixed seat sleeved on the piston rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil cylinder, concretely is a device of increasing oil cylinder support area. BACKGROUND

[0002] The oil cylinder is the hydraulic energy conversion mechanical energy, does linear reciprocating motion's hydraulic actuating element, it simple structure, work is reliable, with it to realize reciprocating motion, can dispense with the speed reducer, and there is no transmission gap, movement is stable, therefore obtains the wide application in the hydraulic system of various machinery, the support area of oil cylinder usually refers to the effective work area of oil cylinder piston, this area directly influences the output and work efficiency of oil cylinder.

[0003] The support area of oil cylinder is the important factor of deciding the stability of oil cylinder, the installation distance of oil cylinder is short in prior art, the length of guide bush and piston part is limited, and then the use performance of oil cylinder is affected, and the stability of system operation is easily affected when the support area of oil cylinder is insufficient in prior art. UTILITY MODEL CONTENT

[0004] The utility model discloses a device of increasing oil cylinder support area to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a device of increasing oil cylinder support area, including mounting seat and cylinder barrel, be equipped with oil inlet and oil outlet on the cylinder barrel, be equipped with piston rod in the cylinder barrel, the piston rod below fixed mounting has the piston, be equipped with guide sleeve in the cylinder barrel, the guide sleeve with piston rod sliding sleeve joint, the guide sleeve below fixed mounting has first extension sleeve, the piston above fixed mounting has second extension sleeve, the second extension sleeve with first extension sleeve swing joint, the piston rod is sleeved with fixed seat, two groups of support rods are symmetrically installed to both sides of the fixed seat, the end away from the fixed seat of support rod rotatory mounting has the moving block, be equipped with two -way screw in the mounting seat, be equipped with four groups of symmetric distribution's clamping blocks on the mounting seat, four groups of clamping blocks swing joint with cylinder barrel respectively, rotatory mounting has the mounting ring in the fixed seat, fixed mounting has the annular tooth on the mounting ring, be equipped with three groups of annular distribution's clamping rods on the fixed seat, the first slide rod of two groups of symmetric distribution is slidably installed in the mounting seat, the second slide rod of two groups of symmetric distribution is slidably installed in the mounting seat.

[0006] As the further preferred of this technical scheme, two groups of support rods are rotatory connected with the fixed seat through the pivot respectively, two groups of moving blocks are slidably connected with the mounting seat, the both ends of two -way screw are respectively through mounting seat and rotatory connected with mounting seat through the bearing, the both ends of two -way screw are respectively through two groups of moving blocks and respectively with two groups of moving blocks screw connection.

[0007] As a further preferred of the technical solution, three groups of the clamping rod below fixedly installed with a sliding block, the fixed seat is provided with three groups of annular distribution sliding groove, the sliding block is correspondingly arranged with the sliding groove, the sliding block is slidably connected with the fixed seat through the sliding groove, the sliding block is engagedly connected with the mounting ring through the annular gear.

[0008] As a further preferred of the technical solution, the mounting ring is sleeved with a gear ring, the fixed seat is provided with a rack and a cylinder, the rack is slidably connected with the fixed seat, the rack is connected with the output end of the cylinder piston rod, and the rack is engagedly connected with the gear ring.

[0009] As a further preferred of the technical solution, the first sliding rod and the second sliding rod are vertically distributed, and four groups of the clamping blocks are respectively slidably sleeved with two groups of the first sliding rod and the second sliding rod which are adjacently distributed.

[0010] As a further preferred of the technical solution, the mounting seat is provided with two groups of symmetrically distributed first and second bidirectional screws, the two ends of the first and second bidirectional screws are rotatably connected with the mounting seat, two groups of synchronous wheels are sleeved on the first and second bidirectional screws, and two groups of synchronous belts are arranged in the mounting seat and are respectively in transmission connection with the two groups of synchronous wheels.

[0011] As a further preferred of the technical solution, the two ends of the first bidirectional screw are respectively threaded through two groups of first sliding rods and are respectively in threaded connection with the two groups of first sliding rods, and the two ends of the second bidirectional screw are respectively threaded through two groups of second sliding rods and are respectively in threaded connection with the two groups of second sliding rods.

[0012] The device provided by the utility model has the following beneficial effects:

[0013] (1) The first and second extension sleeves arranged on the guide sleeve and the piston are used to extend the overlapping part of the guide sleeve and the piston, increase the supporting area of the lower end of the piston rod inside the oil cylinder, effectively improve the working efficiency and stability of the oil cylinder, and realize the stability support for the movement of the piston during the overall working process of the oil cylinder through the mounting seat of the oil cylinder outer sleeve and the fixed seat sleeved on the piston rod, thereby assisting the stability during the output and retraction process of the piston rod and avoiding the influence of insufficient supporting area of the oil cylinder on the system running stability when the oil cylinder is used alone.

[0014] (2) The first and second sliding rods in the fixed seat and the mounting seat are used to adjust the spacing between the four groups of clamping blocks and the spacing between the three groups of clamping rods, so that the fixed seat and the mounting seat can be additionally installed on different models of oil cylinders, complete the auxiliary support during the operation of the piston rod of the oil cylinder, and improve the running stability of the oil cylinder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the piston rod of this utility model;

[0017] Figure 3 This is a schematic diagram of the support rod of this utility model;

[0018] Figure 4 This is a schematic diagram of the mounting base of this utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point A;

[0020] Figure 6 This is a schematic diagram of the structure of the first sliding rod of this utility model;

[0021] Figure 7 For the present utility model Figure 6 Enlarged view of the structure at point -B;

[0022] In the diagram: 1. Mounting base; 2. Cylinder; 3. Piston rod; 4. Oil inlet; 5. Oil outlet; 6. Guide sleeve; 7. First extension sleeve; 8. Piston; 9. Second extension sleeve; 10. Fixed base; 11. Support rod; 12. Mounting ring; 13. Ring tooth; 14. Gear ring; 15. Rack; 16. Cylinder; 17. Slide groove; 18. Slider; 19. Clamping rod; 20. Moving block; 21. Double-acting screw; 22. Clamping block; 23. First slide rod; 24. Second slide rod; 25. First double-acting screw; 26. Second double-acting screw; 27. Synchronous pulley; 28. Synchronous belt. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, a device for increasing the support area of the oil cylinder includes a mounting seat 1 and a cylinder barrel 2, the cylinder barrel 2 is provided with an oil inlet 4 and an oil outlet 5, the cylinder barrel 2 is provided with a piston rod 3, the lower part of the piston rod 3 is fixedly provided with a piston 8, the cylinder barrel 2 is provided with a guide sleeve 6, the guide sleeve 6 is slidably connected with the piston rod 3, the lower part of the guide sleeve 6 is fixedly provided with a first extension sleeve 7, the upper part of the piston 8 is fixedly provided with a second extension sleeve 9, the second extension sleeve 9 is movably connected with the first extension sleeve 7, the piston rod 3 is provided with a fixed seat 10, two groups of supporting rods 11 are symmetrically arranged on both sides of the fixed seat 10, a moving block 20 is rotatably arranged on the end of the supporting rod 11 away from the fixed seat 10, a bidirectional screw 21 is arranged in the mounting seat 1, four groups of clamping blocks 22 are symmetrically arranged on the mounting seat 1, the four groups of clamping blocks 22 are movably connected with the cylinder barrel 2, an installation ring 12 is rotatably arranged in the fixed seat 10, an annular tooth 13 is fixedly arranged on the installation ring 12, three groups of clamping rods 19 are annularly arranged above the fixed seat 10, two groups of first sliding rods 23 are symmetrically arranged in the mounting seat 1, two groups of second sliding rods 24 are symmetrically arranged in the mounting seat 1, the first extension sleeve 7 and the second extension sleeve 9 arranged on the guide sleeve 6 and the piston 8 are used to extend the overlapping part of the guide sleeve 6 and the piston 8, increase the support area of the lower end of the piston rod 3 inside the oil cylinder, effectively improve the working efficiency and stability of the oil cylinder, the two groups of supporting rods 11 are rotatably connected with the fixed seat 10 through the rotating shaft, the two groups of moving blocks 20 are slidably connected with the mounting seat 1, the two ends of the bidirectional screw 21 are respectively penetrated through the mounting seat 1 and rotatably connected with the mounting seat 1 through the bearing, the two ends of the bidirectional screw 21 are respectively penetrated through the two groups of moving blocks 20 and threadedly connected with the two groups of moving blocks 20, and the mounting seat 1 connected with the oil cylinder and the fixed seat 10 sleeved on the piston rod 3 are used to support the stability of the piston 8 during the whole working process of the oil cylinder, the two groups of supporting rods 11 drive the fixed seat 10 to move synchronously with the piston rod 3 under the action of the bidirectional screw 21 and the moving block 20 during the sliding process of the piston rod 3, and the stability during the sliding process of the piston rod 3 is maintained.

[0025] As Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, three groups of clamping rods 19 are fixedly installed below the sliding blocks 18, and the fixed seat 10 is provided with three groups of annularly distributed sliding grooves 17, the sliding blocks 18 are correspondingly arranged with the sliding grooves 17, the sliding blocks 18 are slidably connected with the fixed seat 10 through the sliding grooves 17, the sliding blocks 18 are meshingly connected with the mounting ring 12 through the annular teeth 13, the mounting ring 12 is sleeved with the tooth ring 14, the fixed seat 10 is provided with the rack 15 and the cylinder 16, the rack 15 is slidably connected with the fixed seat 10, the rack 15 is connected with the output end of the piston rod 3 of the cylinder 16, the rack 15 is meshingly connected with the tooth ring 14, before using the cylinder, the cylinder 16 in the fixed seat 10 is started to drive the rack 15 to slide, the tooth ring 14 meshingly connected with the rack 15 drives the mounting ring 12 to rotate, the mounting ring 12 drives the annular teeth 13 to rotate, and the three groups of sliding blocks 18 meshingly connected with the annular teeth 13 slide in the sliding grooves 17 to drive the three groups of clamping rods 19 to adhere to the outer wall of the piston rod 3, the piston rod 3 is protected in stability during the sliding process under the action of the fixed seat 10 and the clamping rods 19, the first sliding rod 23 and the second sliding rod 24 are vertically distributed, four groups of clamping blocks 22 are respectively slidably sleeved with two groups of first sliding rods 23 and second sliding rods 24 distributed adjacent to each other, the mounting seat 1 is provided with two groups of first bidirectional screws 25 and second bidirectional screws 26 symmetrically distributed, the two ends of the first bidirectional screws 25 and the second bidirectional screws 26 are respectively penetrated through the mounting seat 1 and rotatably connected with the mounting seat 1, the two groups of first bidirectional screws 25 and the second bidirectional screws 26 are respectively sleeved with synchronous wheels 27, the mounting seat 1 is provided with two groups of synchronous belts 28, the two groups of synchronous belts 28 are respectively drivingly connected with the two groups of synchronous wheels 27, the two ends of the first bidirectional screws 25 are respectively penetrated through the two groups of first sliding rods 23 and are respectively threadedly connected with the two groups of first sliding rods 23, the two ends of the second bidirectional screws 26 are respectively penetrated through the two groups of second sliding rods 24 and are respectively threadedly connected with the two groups of second sliding rods 24, two groups of motors in the mounting seat 1 are respectively started to drive the rotation of the first bidirectional screws 25 and the second bidirectional screws 26, the two groups of first bidirectional screws 25 and the two groups of second bidirectional screws 26 are synchronously rotated under the action of the synchronous belts 28 and the synchronous wheels 27, the two groups of first sliding rods 23 and the two groups of second sliding rods 24 are synchronously slid inward or outward under the limiting action of the mounting seat 1, the clamping blocks 22 are synchronously gathered inward or slid outward under the action of the first sliding rods 23 and the second sliding rods 24, are adapted below the cylinder barrel 2, complete the fixation of the mounting seat 1 and the cylinder barrel 2, so that the supporting device can be applied to different models of cylinder barrels 2 within a certain range.

[0026] The utility model provides a device of increasing oil cylinder support area, concrete working principle is as follows: through the first extension sleeve 7 and the second extension sleeve 9 of setting on the guide bush 6 and piston 8 realize the extension of the overlapping part of guide bush 6 and piston 8, increase the support area of the lower end piston 8 of oil cylinder internal piston rod 3, effectively improve the working efficiency and stability of oil cylinder, and through the mounting base 1 of oil cylinder outer sleeve and the fixed seat 10 of piston rod 3 sleeve realize the stability performance support of piston 8 movement in the whole working process of oil cylinder, the fixed seat 10 is driven along with piston rod 3 synchronous movement under the action of two groups of support pole 11 in bidirectional screw rod 21 and moving block 20 in the sliding process of piston rod 3, keep the stability in the sliding process of piston rod 3, before using the oil cylinder, start the cylinder 16 in fixed seat 10 and drive rack 15 sliding, and the gear ring 14 of meshing connection of rack 15 drives mounting ring 12 to rotate, and mounting ring 12 drives annular gear 13 to rotate, and the three groups of sliding block 18 of meshing connection of annular gear 13 slide in the sliding slot 17, drive three groups of clamping rod 19 to adhere to the outer wall of piston rod 3, and the output stability of piston rod 3 is protected under the action of fixed seat 10 and clamping rod 19 in the sliding process, respectively start two groups of motor in mounting base 1 drive the rotation of first bidirectional screw rod 25 and second bidirectional screw rod 26, make two groups of first bidirectional screw rod 25 and two groups of second bidirectional screw rod 26 synchronous rotation under the action of synchronous belt 28 and synchronous wheel 27, make two groups of first slide rod 23 and two groups of second slide rod 24 synchronous slide inwards or outwards under the limiting action of mounting base 1, and the clamping block 22 is synchronous to the inside or outside slide under the action of first slide rod 23 and second slide rod 24, is adapted to the lower of cylinder barrel 2, completes the fixation of mounting base 1 and cylinder barrel 2, so that the supporting device can be applicable to the cylinder barrel 2 of different models within a certain range.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for increasing the support area of a cylinder, comprising a mounting base (1) and a cylinder barrel (2), characterized in that: The cylinder (2) is provided with an oil inlet (4) and an oil outlet (5), the cylinder (2) is provided with a piston rod (3), the lower portion of the piston rod (3) is fixedly provided with a piston (8), the cylinder (2) is provided with a guide sleeve (6), the guide sleeve (6) is slidably connected with the piston rod (3), the lower portion of the guide sleeve (6) is fixedly provided with a first extension sleeve (7), the upper portion of the piston (8) is fixedly provided with a second extension sleeve (9), the second extension sleeve (9) is movably connected with the first extension sleeve (7), the piston rod (3) is provided with a fixing base (10), the two sides of the fixing base (10) are symmetrically provided with two groups of supporting rods (11), the end, away from the fixing base (10), of the supporting rod (11) is rotatably provided with a moving block (20), the mounting base (1) is provided with a bidirectional screw rod (21), the mounting base (1) is provided with four groups of clamping blocks (22) which are symmetrically distributed, the four groups of clamping blocks (22) are movably connected with the cylinder (2) respectively, the fixing base (10) is rotatably provided with a mounting ring (12), the mounting ring (12) is fixedly provided with an annular gear (13), the upper portion of the fixing base (10) is provided with three groups of clamping rods (19) which are annularly distributed, the mounting base (1) is slidably provided with two groups of first sliding rods (23) which are symmetrically distributed, the mounting base (1) is slidably provided with two groups of second sliding rods (24) which are symmetrically distributed.

2. The device for increasing the support area of the oil cylinder according to claim 1, characterized in that: The two groups of supporting rods (11) are rotatably connected with the fixing base (10) through rotation shafts respectively, the two groups of moving blocks (20) are slidably connected with the mounting base (1) respectively, the two ends of the bidirectional screw rod (21) penetrate through the mounting base (1) and are rotatably connected with the mounting base (1) through bearings respectively, the two ends of the bidirectional screw rod (21) penetrate through the two groups of moving blocks (20) and are threadedly connected with the two groups of moving blocks (20) respectively.

3. The device for increasing the support area of the oil cylinder according to claim 1, characterized in that: The lower portion of each of the three groups of clamping rods (19) is fixedly provided with a sliding block (18), the fixing base (10) is provided with three groups of sliding grooves (17) which are annularly distributed, the sliding block (18) is correspondingly arranged with the sliding groove (17), the sliding block (18) is slidably connected with the fixing base (10) through the sliding groove (17), and the sliding block (18) is meshedly connected with the mounting ring (12) through the annular gear (13).

4. The device for increasing the support area of the oil cylinder according to claim 1, characterized in that: The mounting ring (12) is sleeved with a gear ring (14), the fixing base (10) is provided with a rack (15) and an air cylinder (16), the rack (15) is slidably connected with the fixing base (10), the rack (15) is connected with the output end of the piston rod (3) of the air cylinder (16), and the rack (15) is meshedly connected with the gear ring (14).

5. The device for increasing the support area of a cylinder according to claim 1, characterized in that: The first sliding rod (23) and the second sliding rod (24) are vertically distributed, and the four groups of clamping blocks (22) are slidably sleeved with the two groups of first sliding rods (23) and the two groups of second sliding rods (24) which are adjacently distributed respectively.

6. The device for increasing the support area of a cylinder according to claim 1, characterized in that: The mounting seat (1) is internally provided with two groups of symmetrically distributed first bidirectional screws (25) and second bidirectional screws (26), both ends of the first bidirectional screws (25) and the second bidirectional screws (26) penetrate the mounting seat (1) and are rotationally connected with the mounting seat (1), both groups of the first bidirectional screws (25) and the second bidirectional screws (26) are sleeved with synchronous wheels (27), the mounting seat (1) is internally provided with two groups of synchronous belts (28), and the two groups of synchronous belts (28) are respectively in transmission connection with the two groups of synchronous wheels (27).

7. The device for increasing the support area of a cylinder according to claim 6, characterized in that: Both ends of the first bidirectional screws (25) respectively penetrate two groups of first sliding rods (23) and are respectively in threaded connection with the two groups of first sliding rods (23), both ends of the second bidirectional screws (26) respectively penetrate two groups of second sliding rods (24) and are respectively in threaded connection with the two groups of second sliding rods (24).

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