Lifting device

Abstract

The lifting device comprises a jack and an adjusting mechanism, and the jack ascends and descends in the first direction and comprises a jacking base located at the top end; the adjusting mechanism comprises a fixing piece and a supporting piece, the fixing piece is connected to the jacking base, the supporting piece is connected to the fixing piece in the first direction in a position adjustable mode, the supporting piece is used for supporting the pump body, and the lifting device can improve the centering accuracy of the pump body and the motor.

Description

Technical Field

[0001] The present disclosure relates to the technical field of gear oil pumps, and in particular to a lifting device. Background Art

[0002] The pump body and motor of a gear oil pump are usually connected and fixed by a coupling. After the gear oil pump has been used for a long time, the pump body needs to be replaced. When replacing the pump body, it is usually necessary to place the new pump body on top of a jack to support the pump body and then adjust the height. After aligning the height of the pump body and the motor, the pump body and the motor are connected by a coupling to complete the assembly. However, when supporting the pump body with a jack, the height adjustment of the jack is inaccurate, which can easily cause the pump body and motor alignment operation to be time-consuming and laborious. Utility Model Content

[0003] The purpose of the present disclosure is to provide a lifting device that can improve the centering accuracy of a pump body and a motor, so as to at least partially solve the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a lifting device, including: a jack, which is lifted and lowered along a first direction and includes a lifting seat located at the top; and an adjustment mechanism, including a fixing member and a supporting member, the fixing member is connected to the lifting seat, the supporting member is connected to the fixing member so that its position can be adjusted along the first direction, and the supporting member is used to support a pump body.

[0005] Optionally, the fixing member includes a screw hole extending along the first direction, and the supporting member includes a mounting shaft threadedly connected to the screw hole.

[0006] Optionally, the fixing member includes a base and a mounting portion, the base is connected to the lifting seat, the mounting portion is connected to the base and the screw hole is formed inside; the supporting member includes a supporting portion and an adjusting portion, the adjusting portion forms the mounting axis, the supporting portion is connected to the adjusting portion and is located on a side of the adjusting portion away from the lifting seat.

[0007] Optionally, the supporting portion includes a supporting surface for supporting the pump body.

[0008] Optionally, the outer peripheral wall of the support portion includes a plurality of clamping surfaces connected in sequence along the circumferential direction.

[0009] Optionally, the support portion is provided with a limiting surface capable of abutting against the mounting portion on a side away from the support surface.

[0010] Optionally, the lifting seat is provided with an avoidance hole, and the avoidance hole is used for inserting the installation shaft.

[0011] Optionally, the base extends outward along a radial direction of the screw hole that is perpendicular to the first direction.

[0012] Optionally, the base is welded to the lifting seat.

[0013] Optionally, the jack is a scissor jack.

[0014] Through the above technical solution, that is, the lifting device provided by the present invention, when the pump body and the motor are centered by the lifting device, the pump body can be supported by the support member of the lifting device, and can be lifted and lowered along the first direction by a jack to roughly adjust the height of the position of the pump body. After adjusting to a height approximately equal to that of the motor, the height can be fine-tuned in the first direction by the support member connected to the fixing member, and then the height of the pump body can be fine-tuned, so that the height of the pump body and the motor can be finally placed on the same horizontal line, which can facilitate the subsequent connection of the pump body and the motor and improve the centering accuracy of the pump body and the motor.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a front view of a lifting device provided in an exemplary embodiment of the present disclosure;

[0018] Figure 2 is a side view of a lifting device provided in an exemplary embodiment of the present disclosure;

[0019] Figure 3 is a top view of a lifting device provided in an exemplary embodiment of the present disclosure;

[0020] Figure 4 2 is a schematic diagram of the three-dimensional structure of a lifting device provided in an exemplary embodiment of the present disclosure.

[0021] Description of Reference Numerals

[0022] 1- jack; 110- lifting seat; 111- avoidance hole; 2- adjusting mechanism; 210- fixing piece; 211- screw hole; 212- base; 213- mounting part; 220- supporting piece; 221- mounting shaft; 222- supporting part; 2221- supporting surface; 2222- clamping surface; 2223- limiting surface; 223- adjusting part. DETAILED DESCRIPTION

[0023] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0024] In the present disclosure, unless otherwise specified, directional words such as "inside" and "outside" refer to the inside and outside relative to the outline of the structure or component itself; "first, second" and the like are intended to distinguish one element from another and have no order or importance. In addition, the same figure marks in different reference drawings represent the same elements.

[0025] The present invention provides a lifting device, referring to Figures 1 to 4 As shown, the lifting device includes a jack 1 and an adjusting mechanism 2. The jack 1 is lifted and lowered along a first direction and includes a lifting seat 110 located at the top; the adjusting mechanism 2 includes a fixing member 210 and a supporting member 220. The fixing member 210 is connected to the lifting seat 110, and the supporting member 220 is connected to the fixing member 210 so that its position can be adjusted along the first direction. The supporting member 220 is used to support the pump body.

[0026] In this way, the lifting device provided by the present invention can support the pump body through the support member 220 of the lifting device when the pump body and the motor are centered. The pump body can be lifted and lowered along the first direction by the jack 1 to roughly adjust the height of the pump body. After adjusting to a height approximately equal to that of the motor, the height can be fine-tuned in the first direction by the support member 220 connected to the fixing member 210, and then the height of the pump body can be fine-tuned, so that the height of the pump body and the motor can be finally placed on the same horizontal line, thereby facilitating the subsequent connection between the pump body and the motor and improving the centering accuracy of the pump body and the motor.

[0027] It should be noted that the first direction mentioned in the above specific implementation manner may be the height direction of the jack 1 itself, that is, it may be Figure 1 Up and down direction.

[0028] In some embodiments, reference Figures 1 to 4As shown, the fixing member 210 includes a screw hole 211 extending along a first direction, and the support member 220 includes a mounting shaft 221 threadedly connected to the screw hole 211. In this way, when the support member 220 moves relative to the fixing member 210, the relative height of the support member 220 can be adjusted by rotating the mounting shaft 221, and through this form similar to the screw movement, the relative height of the pump body supported above the support member 220 can be fine-tuned more accurately. After the height of the pump body is determined, the screw hole 211 and the mounting shaft 221 connected by the thread can also allow the pump body to be stably placed above the support member 220, so that it is not easy to shake and cause the position height to change, thereby improving the position accuracy of the pump body and the motor when they are aligned.

[0029] In addition, in other embodiments, the fixing member 210 and the supporting member 220 may also be configured as any other suitable components, which is not specifically limited in the present disclosure. For example, the supporting member 220 may also include a rack extending along the first direction, and the fixing member 210 may include a gear and a driving part that drives the gear to rotate, and the gear and the rack are meshed to drive the supporting member to move through the gear rack to perform fine adjustment. The driving part may be, for example, a driving block or a hand wheel that can be clamped by a wrench, which is not specifically limited in the present disclosure.

[0030] In some embodiments, reference Figures 1 to 4 As shown, the fixing member 210 includes a base 212 and a mounting portion 213, the base 212 is connected to the lifting seat 110, the mounting portion 213 is connected to the base 212 and has a screw hole 211 formed therein; the supporting member 220 includes a supporting portion 222 and an adjusting portion 223, the adjusting portion 223 forms a mounting shaft 221, the supporting portion 222 is connected to the adjusting portion 223 and is located on the side of the adjusting portion 223 away from the lifting seat 110. In this way, the base 212 can allow the fixing member 210 to be more stably supported above the lifting seat 110, which helps to improve the stability of the support, the screw hole 211 formed inside the mounting portion 213 can be threadedly connected to the mounting shaft 221, the supporting portion 222 above the supporting member 220 can be used to stably support the pump body, and the mounting shaft 221 formed by the adjusting portion 223 can be threadedly matched with the screw hole 211 to achieve the lifting and lowering of the supporting member 220, thereby achieving fine adjustment of the height position of the pump body.

[0031] In some embodiments, reference Figures 1 to 4 As shown, the support portion 222 includes a support surface 2221 for supporting the pump body. In this way, the support surface 2221 can stably support the pump body, and can refer to Figure 1 and Figure 4As shown, the support surface is oriented parallel to the horizontal direction. When supporting the pump body, the position height of the pump body can be accurately adjusted through the support member 220 while being able to stably support the pump body, thereby quickly realizing the centering operation of the pump body and the motor, facilitating the subsequent connection of the pump body and the motor.

[0032] It should be noted that since the bottom structures of different types of pump bodies are different, in order to improve the supporting effect on the pump body, the supporting surface 2221 can also be designed as a special-shaped structure that matches the bottom structure of the pump body, thereby improving the supporting stability of different types of pump bodies.

[0033] In some embodiments, reference Figures 1 to 4 As shown, the outer peripheral wall of the support portion 222 includes a plurality of clamping surfaces 2222 connected in sequence along the circumferential direction. In this way, the plurality of clamping surfaces 2222 can facilitate the staff to rotate the support portion 222 through an external tool, thereby rotating the mounting shaft 221 relative to the screw hole 211, so as to achieve fine adjustment of the height of the support member 220 in the first direction, referring to Figure 3 and Figure 4 As shown, the number of the clamping surfaces 2222 may be six. In this arrangement, the staff can clamp at least two clamping surfaces 2222 by using tools such as a hexagonal wrench, thereby more conveniently rotating the support portion 222 .

[0034] It should be noted that the number of clamping surfaces 2222 is not limited to six as specified in the above specific implementation. Under the premise that clamping can be performed by external tools, the number of clamping surfaces 2222 can also be two, three, four or more, and the present disclosure does not make specific limitations on this.

[0035] In some embodiments, reference Figures 1 to 4 As shown, the support portion 222 is provided with a limiting surface 2223 capable of abutting against the mounting portion 213 on the side away from the support surface 2221. In this way, the limiting surface 2223 can prevent the support portion 222 from completely falling into the screw hole 211 during the rotation process, that is, it can be referred to Figure 1 As shown, when the installation shaft 221 moves downward relative to the screw hole 211, when the installation shaft 221 drops to a certain height, the limiting surface 2223 will abut against the top of the installation portion 213. At this time, the support portion 222 cannot continue to drop and remains in the current position. In addition, the setting of the limiting surface 2223 can also prevent the support portion 222 from falling completely into the screw hole 211 due to the excessive weight of the pump body, thereby reducing the occurrence of the situation where the height cannot be adjusted.

[0036] In some embodiments, reference Figures 1 to 4As shown, the jacking seat 110 is provided with an avoidance hole 111, and the avoidance hole 111 is used for inserting the installation shaft 221. In this way, when the installation shaft 221 rotates relative to the screw hole 211 and moves up and down, the avoidance hole 111 can allow the installation shaft 221 to be inserted, so that the longer installation shaft 221 can have more movement in the first direction, and the height can be flexibly adjusted, which can improve the centering accuracy of the pump body and the motor and the range of height adjustment.

[0037] In some embodiments, reference Figures 1 to 4 As shown, the base 212 extends outwardly along the radial direction perpendicular to the first direction of the screw hole 211. With this arrangement, the outwardly extending base 212 can further increase the contact area between the fixing member 210 and the lifting seat 110, thereby allowing the base 212 to be more stably installed above the lifting seat 110, which can indirectly improve the stability of the lifting device supporting the pump body.

[0038] In some embodiments, reference Figures 1 to 4 As shown, the base 212 is welded to the lifting seat 110. In this way, the base 212 and the lifting seat 110 are connected by welding, so that the base 212 and the lifting seat 110 can be more firmly installed together, so that the adjustment mechanism 2 is less likely to shake relative to the jack 1 when supporting the pump body, thereby improving the stability of the pump body support and facilitating the subsequent centering operation of the pump body and the motor.

[0039] In some embodiments, reference Figures 1 to 4 As shown, the jack 1 is a scissor jack. In this way, the scissor jack usually has a better load-bearing capacity and can achieve rapid lifting and lowering, and can occupy a smaller space. When the water pump is supported by the scissor jack, it has a better supporting effect. In addition, it should be noted that the scissor jack can adopt the height adjustment method of the existing scissor jack in the relevant technology when realizing the up and down adjustment of the relative position of the water pump. The present disclosure does not elaborate on this. In addition, the jack 1 can also be constructed in the form of any other different types of jacks that can support the pump body. For example, the jack 1 can also be a screw jack, a sleeve jack or a rack jack, etc., and the present disclosure does not make specific limitations on this.

[0040] The present disclosure exemplarily describes the supporting steps of the lifting device when replacing the pump body, which may include the following steps:

[0041] When the pump body of the gear oil pump needs to be replaced, the pump body is placed on the support surface 2221 and roughly adjusted in the first direction by using the jack 1. After the pump body and the motor are adjusted to approximately the same height, the clamping surface 2222 can be clamped by an external tool such as a wrench, and then the support portion 222 can be rotated. When the support portion 222 rotates, the mounting shaft 221 can be driven to rotate, and then the entire support member 220 can be driven to perform fine-tuning of the height up and down in the first direction. After the pump body and the motor are adjusted to the same height, the centering operation of the pump body and the motor is completed. Subsequently, the motor and the pump body can be connected by means of components such as couplings, thereby completing the entire connection process of the pump body and the motor.

[0042] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0044] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A lifting device, characterized in that: include: A jack, which is lifted and lowered along a first direction and includes a jacking seat at a top end; and The adjusting mechanism comprises a fixing member and a supporting member, wherein the fixing member is connected to the lifting seat, the supporting member is connected to the fixing member in an adjustable manner along the first direction, and the supporting member is used to support the pump body.

2. The lifting device according to claim 1, characterized in that: The fixing member includes a screw hole extending along the first direction, and the supporting member includes a mounting shaft threadedly connected to the screw hole.

3. The lifting device according to claim 2, characterized in that: The fixing member comprises a base and a mounting portion, wherein the base is connected to the lifting seat, and the mounting portion is connected to the base and has the screw hole formed therein; The support member includes a supporting portion and an adjusting portion, wherein the adjusting portion forms the mounting shaft, and the supporting portion is connected to the adjusting portion and is located at a side of the adjusting portion away from the lifting seat.

4. The lifting device according to claim 3, characterized in that: The supporting portion includes a supporting surface for supporting the pump body.

5. The lifting device according to claim 4, characterized in that: The outer peripheral wall of the support portion includes a plurality of clamping surfaces sequentially connected along the circumferential direction.

6. The lifting device according to claim 5, characterized in that: The support portion is provided with a limiting surface capable of abutting against the mounting portion on a side away from the support surface.

7. The lifting device according to claim 3, characterized in that: The lifting seat is provided with an avoidance hole, and the avoidance hole is used for the installation shaft to be inserted.

8. The lifting device according to claim 3, characterized in that: The base extends outward along a radial direction of the screw hole that is perpendicular to the first direction.

9. The lifting device according to claim 8, characterized in that: The base is welded to the lifting seat.

10. The lifting device according to claim 1, characterized in that: The jack is a scissor jack.

Images