Driving device for jack

Abstract

The utility model discloses a driving device for a jack, which relates to the technical field of jacks and comprises a driving rod and a bevel gear set, the bevel gear set is positioned inside an outer tube of the jack, a through hole is arranged at the upper end of the outer tube, and one end of the driving rod penetrates through the through hole, extends into the outer tube and is connected with the bevel gear set. The other end of the driving rod is located on the outer side of the outer pipe, the driving rod drives the bevel gear set to rotate, an anti-vibration ring is arranged in the through opening, the thickness of the anti-vibration ring is larger than or equal to the wall thickness of the outer pipe, and the driving rod penetrates through the anti-vibration ring and is rotationally connected with the anti-vibration ring. The effect of improving the stability of the driving rod in the rotating process is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of jack technology especially is concerned with a driving device for jack. BACKGROUND

[0002] At present, the bevel gear jack is provided with a fixed driving rod in the use process, the fixed driving rod is installed on the top of the outer pipe of the bevel gear jack, the fixed driving rod provides stable support and fixation for the bevel gear jack, ensures that the bevel gear jack does not displace or tilt in the working process, and thus ensures the accuracy and safety of the jacking operation.

[0003] The existing driving rod design penetrates the upper end of the outer pipe of the bevel gear jack, drives the gear to rotate by rotating the driving rod, and thus controls the lifting of the jack. However, since the driving rod and the jack are rigidly connected, the driving rod collides with and rubs against the outer pipe in the rotating process. In a high-frequency vibration or heavy-load working environment, the vibration is directly transmitted to the jack and the driving rod, which easily causes wear, loosening, and even structural damage of the components, thereby affecting the stability and service life of the jack and reducing the reliability and safety of the overall equipment.

[0004] In view of the related technology in the above, a driving device for jack is urgently needed to reduce the influence of vibration on the device in the use process of the jack and improve the stability of the rotation of the driving rod. UTILITY MODEL CONTENTS

[0005] In order to improve the stability of the rotation of the driving rod, the application provides a driving device for jack.

[0006] The application provides a driving device for jack, which adopts the following technical scheme:

[0007] A driving device for jack includes a driving rod and a bevel gear set. The bevel gear set is located inside the outer pipe of the jack. The upper end of the outer pipe is provided with a through hole. One end of the driving rod extends to the inside of the outer pipe through the through hole and is connected with the bevel gear set. The other end of the driving rod is located outside the outer pipe. The driving rod drives the bevel gear set to rotate. A shockproof ring is arranged in the through hole. The thickness of the shockproof ring is greater than or equal to the wall thickness of the outer pipe. The driving rod penetrates the shockproof ring and is rotationally connected with the shockproof ring.

[0008] By adopting the above technical scheme, the driving rod drives the bevel gear set to rotate, and thus the jack is jacked up. The shockproof ring in the through hole is used to reduce the influence of the driving rod on the outer pipe in the rotating process of the bevel gear set, thereby improving the stability of the rotating process of the driving rod.

[0009] Optionally, the through hole at the upper end of the outer pipe is two, the two through holes face each other, and a shockproof ring is arranged in each of the two through holes. The driving rod penetrates the two shockproof rings and is rotationally connected with the shockproof rings.

[0010] Through the above technical scheme, the two openings make the connection between the driving rod and the outer tube more stable, and the two shockproof rings cooperate to further improve the stability of the driving rod during rotation.

[0011] Optionally, the bevel gear set comprises a bevel gear one and a bevel gear two, the bevel gear one is arranged along the direction of the jack lifting and is engaged with the bevel gear two, the driving rod passes through the bevel gear one, and the bevel gear two is connected with the inner tube of the jack.

[0012] Through the above technical scheme, the driving rod drives the bevel gear one to rotate, the bevel gear one drives the bevel gear two to rotate, and then the outer tube of the jack is lifted, thereby improving the convenience and stability of the jack lifting.

[0013] Optionally, the bevel gear one comprises a cylinder and a rotating gear, the cylinder is fixedly connected to the toothed surface of the rotating gear, the cylinder rotates coaxially with the rotating gear, and the large-diameter side of the rotating gear is attached to the shockproof pad on the side of the rotating gear away from the cylinder.

[0014] Through the above technical scheme, the cylinder and the rotating gear cooperate, which is conducive to reducing the space ratio of the bevel gear one in the outer tube, providing support for the subsequent spring and fixing sleeve, and improving the stability of the connection between the bevel gear one and the fixing sleeve.

[0015] Optionally, the cylinder is radially provided with a limiting hole one, the driving rod is radially provided with a limiting hole two, and a limiting pin is arranged between the driving rod and the cylinder, the limiting pin passes through the limiting hole one and the limiting hole two, and is used for positioning the driving rod and the cylinder.

[0016] Through the above technical scheme, the limiting pin passes through the limiting hole one and the limiting hole two to fix the driving rod and the cylinder, and the cylinder and the driving rod are detachable, thereby improving the convenience of part replacement.

[0017] Optionally, a limiting device is arranged on the inner side of the outer tube, the limiting device is located on the side of the cylinder away from the rotating gear, and is used for limiting the cylinder.

[0018] Through the above technical scheme, the limiting device is used for limiting the cylinder and the rotating gear, thereby improving the engagement stability of the rotating gear and the bevel gear two.

[0019] Optionally, the limiting device comprises a fixing sleeve and a spring, the fixing sleeve is sleeved on the outer side of the driving rod, the fixing sleeve is located on the side of the cylinder away from the rotating gear, the spring is sleeved on the outer side of the cylinder and the fixing sleeve, one end of the spring abuts against the rotating gear, and the other end of the spring abuts against the outer tube.

[0020] Through the above technical scheme, the spring and the fixing sleeve cooperate to limit the cylinder, and under the limiting action of the spring, the convenience of splicing the cylinder and the fixing sleeve is improved.

[0021] Optionally, the inner diameter of the fixing sleeve is smaller than the outer diameter of the cylinder, and the outer diameter of the fixing sleeve is smaller than the diameter of the small-diameter end of the rotating gear.

[0022] By adopting the above technical scheme, the spring is used for limiting and guiding the fixing sleeve, thereby improving the convenience of splicing the fixing sleeve and the cylinder.

[0023] Optionally, when the one end of the fixing sleeve along the length direction abuts against the cylinder, a gap is left between the other end of the fixing sleeve and the outer tube.

[0024] By adopting the above technical scheme, the spring limits the fixing sleeve, and the fixing sleeve and the outer tube have a gap, thereby improving the convenience of installing the fixing sleeve and the cylinder in the outer tube.

[0025] Optionally, the inner tube is transversely rotatably connected with a limiting shaft at the upper end, the limiting shaft is located between the inner tube and the second bevel gear, the lower end of the second bevel gear is axially provided with a limiting slot, the limiting slot is matched with the limiting shaft, and the limiting shaft is located in the limiting slot.

[0026] By adopting the above technical scheme, the limiting shaft is located in the limiting slot, thereby limiting the second gear, and the second gear is detachable from the limiting shaft, thereby improving the convenience of replacing the second gear.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The two through holes make the driving rod and the outer tube more stable in connection, and the shockproof ring is used for reducing the vibration influence of the driving rod on the outer tube during the rotation of the bevel gear set, thereby improving the stability of the driving rod during rotation.

[0029] 2. The cylinder and the rotating gear are matched, which is conducive to reducing the space ratio of the first bevel gear in the outer tube and providing support for the subsequent fixing sleeve and spring.

[0030] 3. The spring limits the fixing sleeve, and the fixing sleeve and the outer tube have a gap, thereby improving the convenience of installing the fixing sleeve and the cylinder in the outer tube. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of a driving device for a jack.

[0032] Figure 2 It is a schematic diagram of the connection relationship between the limiting device and the driving rod.

[0033] Figure 3 It is a schematic diagram of the connection relationship between the limiting shaft and the second bevel gear.

[0034] Figure 4 It is a schematic diagram of the connection relationship between the first bevel gear and the driving rod.

[0035] Figure 5 is a schematic view highlighting the driving rod structure.

[0036] BRIEF DESCRIPTION OF DRAWINGS 1, driving rod; 11, limiting hole two; 12, limiting pin; 13, limiting device; 131, fixed sleeve; 132, spring; 2, bevel gear set; 21, bevel gear one; 211, cylinder; 212, rotating gear; 213, limiting hole one; 22, bevel gear two; 221, limiting slot; 222, limiting shaft; 3, through port; 31, shockproof ring. DETAILED DESCRIPTION

[0037] The application will be further described in detail below with reference to all the drawings.

[0038] The application discloses a driving device for a jack. EMBODIMENT

[0039] WITH REFERENCE Figure 1 and Figure 2 A driving device for a jack, comprising a driving rod 1 and a bevel gear set 2, the bevel gear set 2 is located inside the outer tube of the jack, the upper end of the outer tube is provided with a through port 3, one end of the driving rod 1 passes through the through port 3 and extends to the inside of the outer tube and is connected with the bevel gear set 2, the driving rod 1 drives the bevel gear set 2 to rotate, thereby making the jack jack up.

[0040] WITH REFERENCE Figure 2 The through port 3 of the upper end of the outer tube is two, the two through ports 3 face each other, and the two through ports 3 make the connection of the driving rod 1 and the outer tube more stable. The two through ports 3 are each provided with a shockproof ring 31, the driving rod 1 passes through the two shockproof rings 31 and is rotationally connected with the shockproof rings 31, the shockproof rings 31 are beneficial to reducing the influence of the driving rod 1 on the outer tube of the jack during rotation, thereby improving the stability of the rotation of the driving rod 1, and the thickness of the shockproof ring 31 is greater than or equal to the wall thickness of the outer tube.

[0041] WITH REFERENCE Figure 2 and Figure 3 The bevel gear set 2 comprises a bevel gear one 21 and a bevel gear two 22, the bevel gear one 21 is arranged along the jack lifting direction and is engaged with the bevel gear two 22, the bevel gear two 22 is connected with the inner tube of the jack, the driving rod 1 passes through the bevel gear one 21, the driving rod 1 drives the bevel gear one 21 to rotate, and the bevel gear one 21 and the bevel gear two 22 cooperate to make the jack jack up. The upper end of the inner tube is rotationally connected with a limiting shaft 222 in the transverse direction, the limiting shaft 222 is located between the inner tube and the bevel gear two 22, the lower end of the bevel gear two 22 is provided with a limiting slot 221 in the axial direction, the limiting slot 221 is matched with the limiting shaft 222, the limiting shaft 222 is located in the limiting slot 221, the bevel gear two is limited, and the bevel gear two and the limiting shaft 222 are detachable, thereby improving the convenience of replacing the bevel gear two.

[0042] WITH REFERENCEFigure 4 The bevel gear 21 comprises a cylinder 211 and a rotating gear 212. The cylinder 211 is fixedly connected to the toothed surface of the rotating gear 212, which is conducive to reducing the space ratio of the bevel gear 21 in the outer tube and providing support for the subsequent spring 132 and fixing sleeve 131. The cylinder 211 rotates coaxially with the rotating gear 212, and the large-diameter side of the rotating gear 212 is attached to the shock pad on the side of the rotating gear 212 away from the cylinder 211.

[0043] Referring to Figure 4 and Figure 5 The cylinder 211 is radially provided with a limiting hole one 213, and the drive rod 1 is radially provided with a limiting hole two 11. A limiting bolt 12 is arranged between the drive rod 1 and the cylinder 211. The limiting bolt 12 passes through the limiting hole one 213 and the limiting hole two 11. The limiting bolt 12 passes through the limiting hole one 213 and the limiting hole two 11, which is used for fixing the drive rod 1 and the cylinder 211. The cylinder 211 and the drive rod 1 are detachable, which improves the convenience of part replacement.

[0044] Referring to Figure 2 and Figure 4 A limiting device 13 is arranged on the inner side of the outer tube. The limiting device 13 is located on the side of the cylinder 211 away from the rotating gear 212. The limiting device 13 is used for limiting the cylinder 211. The limiting device 13 comprises a fixing sleeve 131 and a spring 132. The fixing sleeve 131 is arranged on the outer side of the drive rod 1. The fixing sleeve 131 is located on the side of the cylinder 211 away from the rotating gear 212. The fixing sleeve 131 limits the cylinder 211, which reduces the probability of shaking along the length direction of the drive rod 1 during rotation. The spring 132 is arranged on the outer side of the cylinder 211 and the fixing sleeve 131. One end of the spring 132 abuts against the rotating gear 212, and the other end of the spring 132 abuts against the outer tube. The spring 132 guides the fixing sleeve 131, which improves the convenience of splicing the cylinder 211 and the fixing sleeve 131.

[0045] Referring to Figure 2 and Figure 4 The inner diameter of the fixing sleeve 131 is smaller than the outer diameter of the cylinder 211, and the outer diameter of the fixing sleeve 131 is smaller than the diameter of the small-diameter end of the rotating gear 212. When the one end of the fixing sleeve 131 along the length direction abuts against the cylinder 211, a gap is left between the other end of the fixing sleeve 131 and the outer tube. The spring 132 is used for limiting and guiding the fixing sleeve 131, which improves the convenience of splicing the fixing sleeve 131 and the cylinder 211.

[0046] The implementation principle of the driving device for the jack is that the driving rod 1 rotates to drive the cylinder 211 and the rotating gear 212 to rotate, the limiting bolt 12 passes through the limiting hole one 213 and the limiting hole two 11 to position the cylinder 211, the spring 132 limits the position of the fixed sleeve 131 and the cylinder 211, and a gap is left between one end of the fixed sleeve 131 and the outer pipe, the convenience of splicing of the fixed sleeve 131 and the cylinder 211 is improved, the rotating gear 212 drives the bevel gear two 22 to rotate, and then the lifting of the jack is controlled, and the shock absorbing ring 31 plays a damping effect in the rotating process of the driving rod 1, and the stability of the jack in use is improved.

[0047] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so: equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A driving device for a jack, comprising a driving rod (1) and a bevel gear set (2), wherein the bevel gear set (2) is located inside the outer tube of the jack, the upper end of the outer tube has an opening (3), one end of the driving rod (1) extends through the opening (3) into the outer tube and connects to the bevel gear set (2), the other end of the driving rod (1) is located outside the outer tube, and the driving rod (1) drives the bevel gear set (2) to rotate, characterized in that, The shockproof ring (31) is arranged in the through hole (3), the thickness of the shockproof ring (31) is greater than or equal to the wall thickness of the outer tube, and the driving rod (1) passes through the shockproof ring (31) and is rotationally connected with the shockproof ring (31).

2. A drive unit for a jack as claimed in claim 1, characterized in that: The through hole (3) of the upper end of the outer tube is two, the two through holes (3) are opposite to each other, the two through holes (3) are each provided with a shockproof ring (31), and the driving rod (1) passes through the two shockproof rings (31) and is rotationally connected with the shockproof rings (31).

3. The drive apparatus for a jack as set forth in claim 1, characterized by: The bevel gear set (2) comprises a bevel gear one (21) and a bevel gear two (22), the bevel gear one (21) is arranged along the direction of the jack lifting and is engaged with the bevel gear two (22), the driving rod (1) passes through the bevel gear one (21), and the bevel gear two (22) is connected with the inner tube of the jack.

4. A drive unit for a jack as claimed in claim 3, characterised in that: The gear one comprises a cylinder (211) and a rotating gear (212), the cylinder (211) is fixedly connected to the toothed surface of the rotating gear (212), the cylinder (211) rotates coaxially with the rotating gear (212), and the large-diameter side of the rotating gear (212) is attached to the shockproof ring (31) on the side of the rotating gear (212) away from the cylinder (211).

5. A drive unit for a jack as claimed in claim 4, characterised in that: The cylinder (211) is radially provided with a limiting hole one (213), the driving rod (1) is radially provided with a limiting hole two (11), a limiting pin (12) is arranged between the driving rod (1) and the cylinder (211), the limiting pin (12) passes through the limiting hole one (213) and the limiting hole two (11), and the limiting pin (12) is used for positioning the driving rod (1) and the cylinder (211).

6. A drive unit for a jack as claimed in claim 4, characterised in that: The inner side of the outer tube is provided with a limiting device (13), the limiting device (13) is located on the side of the cylinder (211) away from the rotating gear (212), and the limiting device (13) is used for limiting the cylinder (211).

7. A drive unit for a jack as claimed in claim 6, characterised in that: The limiting device (13) comprises a fixed sleeve (131) and a spring (132), the fixed sleeve (131) is arranged on the outer side of the driving rod (1), the fixed sleeve (131) is located on the side of the cylinder (211) away from the rotating gear (212), the spring (132) is arranged on the outer sides of the cylinder (211) and the fixed sleeve (131), one end of the spring (132) abuts against the rotating gear (212), and the other end of the spring (132) abuts against the outer tube.

8. A drive unit for a jack as claimed in claim 7, characterised in that: The inner diameter of the fixed sleeve (131) is smaller than the outer diameter of the cylinder (211), and the outer diameter of the fixed sleeve (131) is smaller than the diameter of the small-diameter end of the rotating gear (212).

9. A drive unit for a jack as claimed in claim 7, characterised in that: When one end of the fixed sleeve (131) along the length direction abuts against the cylinder (211), a gap is left between the other end of the fixed sleeve (131) and the outer tube.

10. The drive apparatus for a jack as defined in claim 3, wherein: The upper end of the inner tube is rotationally connected with a limiting shaft (222) in the transverse direction, the limiting shaft (222) is located between the inner tube and the bevel gear two (22), the lower end of the bevel gear two (22) is axially provided with a limiting groove (221), the limiting groove (221) is matched with the limiting shaft (222), and the limiting shaft (222) is located in the limiting groove (221).

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