Synchronous lifting mechanism

Abstract

The utility model provides a synchronous lifting mechanism. The synchronous lifting mechanism comprises a supporting seat, a pair of worm and gear mechanisms and a middle connecting rod, the worm and gear mechanisms are installed on the end faces of the two opposite ends of the supporting base respectively, the threaded rods are installed on the upper end faces of worm gears in the worm and gear mechanisms in a threaded mode, and when a worm in the worm and gear mechanism on one side is driven to rotate, the worm on the other side can be driven to rotate synchronously through the middle connecting rod; the worm in the rotating state can drive the worm gear to rotate horizontally, the worm gear can drive the threaded rods to rotate, the worm gear is installed in the base in a horizontally rotating mode (namely, the worm gear cannot ascend and descend), the threaded columns are in a fixed state, and therefore the threaded rods on the two sides can ascend and descend synchronously. Therefore, the synchronous adjustment of the two sides of the product part is ensured, and the adjustment is accurate, convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting and adjusting equipment, in particular to a synchronous lifting mechanism. Background Art

[0002] In the product structure of mechanical equipment, there are many occasions where parts need to be lifted and fine-tuned. For example, after the mechanical equipment arrives at the site, the equipment needs to be calibrated and adjusted. When lifting and adjusting some larger product parts, lifting and adjusting mechanisms are usually installed on both sides of the product parts. After adjustment, it is necessary to ensure that the lifting positions of the product parts adjusted by the lifting and adjusting mechanisms on both sides are at the same height. During the adjustment process, the operator needs to adjust the lifting and adjusting mechanisms on both sides of the product parts separately, which makes the adjustment operation more troublesome, and sometimes it takes multiple repeated adjustments to ensure the consistency of the lifting positions on both sides of the product. Summary of the invention

[0003] In view of the defects existing in the prior art, the purpose of the utility model is to provide a synchronous lifting mechanism to solve the problem that the existing lifting adjustment mechanisms arranged on both sides of product parts are inconvenient to adjust due to the need to adjust them separately.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] The present application provides a synchronous lifting mechanism, which includes a support seat, a pair of worm gear mechanisms and an intermediate connecting rod, wherein the pair of worm gear mechanisms are respectively arranged at opposite ends of the support seat, and the worm gear mechanism includes a base, a worm, a worm wheel, a threaded rod and a threaded column, the base is fixedly installed at an end surface of one end of the support seat, the worm is horizontally rotatably installed on the base, the worm wheel is installed in the base and meshed with the worm, the threaded column is vertically fixedly installed on the end surface of the base, the inner wall of the threaded column is formed with an internal thread, the threaded rod is vertically installed in the inner cavity of the threaded column, the outer wall of the threaded rod is formed with an external thread meshed with the internal thread, the bottom end of the threaded rod is threadedly installed on the worm wheel, and the two ends of the intermediate connecting rod are respectively fixedly connected to one end of the worm located in the pair of worm gear mechanisms.

[0006] In a possible implementation manner, a handwheel is fixedly mounted on an outer end of a worm in the worm gear mechanism.

[0007] In a possible embodiment, the worm gear mechanism also includes a connecting seat, the upper end surface of the worm wheel is formed with an internal connecting thread, the outer surface of the bottom end of the connecting seat is formed with an external connecting thread, the connecting seat is formed with a through hole that passes through from top to bottom, the connecting seat is fixedly installed in the inner cavity of the base through the external connecting thread, the bottom end surface of the connecting seat is in contact with the top end surface of the worm wheel through a retaining ring to prevent the worm wheel from rising and falling, and the bottom end of the threaded rod vertically passes through the through hole and is connected to the internal connecting thread on the worm wheel.

[0008] In a possible embodiment, a keyway is formed at one inner end of the worm, insertion holes for inserting the worm are formed at both ends of the intermediate connecting rod, and locking holes for inserting locking screws into the keyway are formed at positions on the outer surface of the intermediate connecting rod corresponding to the insertion holes.

[0009] In a possible implementation, a scale is installed in the worm gear mechanism, the scale is fixedly mounted on the base, and the scale cooperates with the threaded rod to mark the lifting height of the threaded rod.

[0010] In a possible embodiment, the base includes an upper base and a lower base, the upper base and the lower base are fixedly connected by bolts, the scale includes a mounting seat and a scale portion formed with scale dimensions, the scale portion extends vertically upward from the outer side of the mounting seat, and the mounting seat is installed between the upper base and the lower base.

[0011] The beneficial effects of the utility model are:

[0012] A worm gear mechanism is respectively installed on the end faces of the opposite ends of the support seat, and a threaded rod is threadedly installed on the upper end face of the worm wheel in the worm gear mechanism, and the threaded rod is vertically arranged, and the threaded rod is meshed with the internal thread on the inner wall of the threaded column sleeved on its outer surface, and the threaded column is in a fixed state. At the same time, a pair of worms in the pair of worm gear mechanisms are respectively fixedly connected to the middle connecting rod. Therefore, when the worm in the worm gear mechanism on one side is driven to rotate, it will drive the worm on the other side to rotate synchronously through the middle connecting rod. The rotating worm will then drive the worm wheel to rotate horizontally, and the worm wheel will then drive the threaded rod to rotate. Since the worm wheel is installed in the base for horizontal rotation (that is, it will not be lifted or lowered) and the threaded column is in a fixed state, the threaded rods on both sides will be lifted or lowered synchronously, thereby driving the product parts on both sides connected thereto to be lifted or lowered synchronously, ensuring the synchronous adjustment of the product parts on both sides, and the adjustment is accurate, convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the exploded structure of the installation and assembly of the synchronous lifting mechanism according to an embodiment of the present application.

[0014] Figure 2 This is a schematic diagram of the exploded structure of the installation and assembly of the worm gear mechanism in the synchronous lifting mechanism of the embodiment of the present application.

[0015] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at A in the figure.

[0016] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure at point B in the figure.

[0017] Figure 5 for Figure 2 Schematic diagram of the local enlarged structure at point C in the figure.

[0018] In the figure:

[0019] 100-synchronous lifting mechanism, 200-product parts, 10-support seat, 20-worm gear mechanism, 21-base, 211-upper base, 212-lower base, 22-threaded column, 23-internal thread, 24-threaded rod, 25-external thread, 26-worm, 27-worm wheel, 271-internal connecting thread, 28-connecting seat, 281-through hole, 30-middle connecting rod, 40-scale, 41-mounting seat, 42-scale part, 50-handwheel. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] See attached Figure 1 To Attachment Figure 2 As shown, this embodiment provides a synchronous lifting mechanism 100 , which includes a support base 10 , a pair of worm gear mechanisms 20 and an intermediate connecting rod 30 .

[0022] The pair of worm gear mechanisms 20 are arranged at the left and right ends of the support base 10, and the intermediate connecting rod 30 is horizontally connected between the pair of worm gear mechanisms 20. Specifically, the worm gear mechanism 20 includes a base 21, a worm 26, a worm wheel 27, a threaded rod 24 and a threaded column 22. In order to facilitate the installation of the worm gear mechanism 20 in the base, the base 21 can be composed of a split structure, for example, it can be composed of an upper base 211 and a lower base 212, and the upper base 211 and the lower base 212 can be fixedly connected by bolts.

[0023] Continue to refer to the attached Figure 1 , Attachment Figure 2 And attached Figure 5As shown, the worm 26 is horizontally rotatably installed in the base, the worm wheel 27 is installed inside the base and located above the worm 26, the worm wheel 27 is meshed with the worm 26, and the worm wheel 27 forms a horizontal rotation connection in the base. The bottom end of the threaded column 22 is fixedly installed on the end surface of the upper base 211, the threaded column 22 is vertically arranged, the inner wall of the threaded column 22 is formed with an internal thread 23, the outer peripheral surface of the threaded rod 24 is formed with an external thread 25, the threaded rod 24 is vertically installed in the inner cavity of the threaded column 22, and the external thread 25 of the threaded rod 24 is meshed with the internal thread 23 of the threaded column 22, and the bottom end of the threaded rod 24 is connected to the worm wheel 27 through a connection seat 28.

[0024] The upper end surface of the worm wheel 27 is formed with an internal connection thread 271, the outer surface of the bottom end of the connection seat 28 is formed with an external connection thread, and the connection seat 28 is formed with a through hole 281 that passes through from top to bottom. The connection seat 28 is fixedly installed in the inner cavity of the base through the external connection thread, and the bottom end surface of the connection seat 28 is in contact with the top end surface of the worm wheel 27 through a retaining ring to prevent the worm wheel 27 from moving up and down. The threaded rod 24 and the through hole 281 on the connection seat 28 are clearance-matched, and the bottom end of the threaded rod 24 vertically passes through the through hole 281 and is connected to the internal connection thread 271 on the worm wheel 27.

[0025] Combined with reference to Figure 1 , Attachment Figure 3 And attached Figure 4 As shown, the two ends of the middle connecting rod 30 are respectively fixedly connected to the inner sides of the worm 26 in the worm gear mechanism 20 on both sides, so that the transmission of the worm 26 on one side can be transmitted to the worm 26 on the other side through the middle connecting rod 30, so as to achieve the synchronous action of the worm gear mechanism 20 on both sides. In order to facilitate the adjustment of the middle worm 26 of the worm gear mechanism 20 on one side, a hand wheel 50 is installed at one end of the outer side of the worm 26 in the worm gear mechanism 20 on one side. When in use, the operator can rotate the hand wheel 50 to drive the worm 26 to rotate forward or reverse.

[0026] Specifically, a keyway is formed at one end of the inner side of the worm 26, and insertion holes for inserting the worm 26 are formed at both ends of the intermediate connecting rod 30, and a locking hole for inserting a locking screw into the keyway is formed at a position corresponding to the insertion hole on the outer surface of the intermediate connecting rod 30. In this way, after one end of the worm 26 is inserted into the insertion hole of the intermediate connecting rod 30, the locking screw is screwed into the locking hole and the bottom end of the locking screw enters the mounting hole formed in the keyway to lock the keyway, so that the worm 26 and the intermediate connecting rod 30 are locked into one.

[0027] See attached Figure 1As shown, in order to intuitively know the lifting distance of the threaded rod 24, a scale 40 is installed in the worm gear mechanism 20 on at least one side. The scale 40 is fixedly installed on the base. The scale 40 cooperates with the threaded rod 24 to mark the lifting height of the threaded rod 24.

[0028] Continue to refer to the attached Figure 1 As shown, the scale 40 includes a mounting seat 41 and a scale portion 42 formed with the scale 40, and the scale portion 42 extends vertically upward from the outer side of the mounting seat 41, and the mounting seat 41 is installed between the upper base 211 and the lower base 212.

[0029] In order to better understand the synchronous lifting mechanism in this embodiment, the working principle thereof is briefly described below:

[0030] When adjusting the height position of the product part 200, the operator rotates the hand wheel 50, and the rotating hand wheel 50 drives the worm 26 connected to it to rotate. When the worm 26 on one side rotates, it will drive the worm 26 on the other side to rotate synchronously through the middle connecting rod 30. The rotating worm 26 will then drive the worm wheel 27 to rotate horizontally, and the worm wheel 27 will then drive the threaded rod 24 to rotate. Since the worm wheel 27 is installed in the base for horizontal rotation (that is, it will not be lifted or lowered) and the threaded column 22 is in a fixed state, the threaded rods 24 on both sides will be lifted or lowered synchronously, thereby driving the product parts on both sides connected to it to be lifted or lowered synchronously, ensuring the synchronous adjustment of the product parts on both sides, and the adjustment is accurate, convenient and quick.

[0031] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include these modifications and variations.

Claims

1. Synchronous lifting mechanism, characterized in that: The synchronous lifting mechanism includes a support seat, a pair of worm gear mechanisms and an intermediate connecting rod. The pair of worm gear mechanisms are respectively arranged at opposite ends of the support seat. The worm gear mechanisms include a base, a worm, a worm wheel, a threaded rod and a threaded column. The base is fixedly installed at the end surface of one end of the support seat, the worm is horizontally rotatably installed on the base, the worm wheel is installed in the base and meshed with the worm, the threaded column is vertically fixed on the end surface of the base, the inner wall of the threaded column is formed with an internal thread, the threaded rod is vertically installed in the inner cavity of the threaded column, the outer wall of the threaded rod is formed with an external thread meshed with the internal thread, the bottom end of the threaded rod is threadedly installed on the worm wheel, and the two ends of the intermediate connecting rod are respectively fixedly connected to one end of the worm located in the pair of worm gear mechanisms.

2. The synchronous lifting mechanism according to claim 1, characterized in that: A hand wheel is fixedly mounted on one end of the outer side of the worm in the worm gear mechanism.

3. The synchronous lifting mechanism according to claim 1 or 2, characterized in that: The worm gear mechanism also includes a connecting seat, the upper end surface of the worm wheel is formed with an internal connecting thread, the outer surface of the bottom end of the connecting seat is formed with an external connecting thread, the connecting seat is formed with a through hole that passes through from top to bottom, the connecting seat is fixedly installed in the inner cavity of the base through the external connecting thread, the bottom end surface of the connecting seat is in contact with the top end surface of the worm wheel through a retaining ring to prevent the worm wheel from rising and falling, and the bottom end of the threaded rod vertically passes through the through hole and is connected to the internal connecting thread on the worm wheel.

4. The synchronous lifting mechanism according to claim 1 or 2, characterized in that: A keyway is formed at one inner end of the worm, insertion holes for inserting the worm are formed at both ends of the intermediate connecting rod, and locking holes for inserting a locking screw into the keyway are formed on the outer surface of the intermediate connecting rod at positions corresponding to the insertion holes.

5. The synchronous lifting mechanism according to claim 1, characterized in that: A scale is installed in the worm gear mechanism, and the scale is fixedly installed on the base. The scale cooperates with the threaded rod and is used to mark the lifting height of the threaded rod.

6. The synchronous lifting mechanism according to claim 5, characterized in that: The base includes an upper base and a lower base, and the upper base and the lower base are fixedly connected by bolts. The scale includes a mounting seat and a scale portion with scale dimensions formed thereon, and the scale portion extends vertically upward from the outer side of the mounting seat. The mounting seat is installed between the upper base and the lower base.

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