Movable lead screw nut fixing support device

Abstract

The utility model relates to the technical field of machinery. A movable lead screw nut fixing support device comprises a supporting steel beam, a nut seat and a lead screw nut, the lead screw nut is installed on the nut seat, and a supporting shaft extending outwards is arranged on the opposite side of the nut seat; the nut seat supporting assembly comprises a fixed base plate and a supporting seat through which the supporting shaft penetrates; a rotating shaft hole through which the supporting shaft penetrates is formed in the supporting seat; the fixing base plate is welded to the supporting steel beam, a sliding groove used for being embedded into the supporting base is formed in the fixing base plate, and the supporting base and the fixing base plate are detachably connected through a first bolt which is vertically arranged. Limiting blocks are fixedly welded to the supporting steel beam, the two ends, in the length direction, of the sliding groove are each provided with one limiting block, the limiting blocks are in threaded connection with puller bolts, and the puller bolts are used for abutting against the two sides, in the length direction of the sliding groove, of the supporting base. According to the utility model, the problem of pinning in the operation process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a screw nut fixing support. Background Art

[0002] At present, there are many battery replacement schemes in the field of heavy-duty truck battery replacement. Among them, the lifting mechanism is a mechanism that must be designed for each battery replacement scheme. When a ball screw is used as the lifting mechanism, it can be easier to meet the requirements of lifting accuracy and speed. The ball screw support and the screw nut have high precision requirements, the battery load is large, and the battery replacement robot is as light as possible. During the lifting process, the battery replacement point robot will be deformed, which will affect the smooth operation of the screw nut on the screw. Even if the processing accuracy is improved, it is difficult to avoid the problem of stiffness during operation. In view of the difficulty of the screw nut running stably on the screw, a safe, feasible, and low-cost screw nut seat is needed to support the lifting system and reduce equipment costs. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention provides a movable screw nut fixing support device to solve at least one of the above technical problems.

[0004] In order to achieve the above-mentioned object, the utility model provides a movable screw nut fixing support device, comprising a supporting steel beam, a nut seat and a screw nut, wherein the screw nut is mounted on the nut seat, and is characterized in that support shafts extending outward are provided on opposite sides of the nut seat;

[0005] Also included is a nut seat support assembly, the nut seat support assembly including a fixed backing plate and a support seat for passing the support shaft;

[0006] The support seat is provided with a rotating shaft hole for passing the supporting shaft;

[0007] The fixing plate is welded to the supporting steel beam, and a slide groove for embedding the supporting seat is provided on the fixing plate, the length direction of the slide groove is perpendicular to the axial direction of the supporting shaft, and the supporting seat and the fixing plate are detachably connected by a vertically arranged first bolt;

[0008] A limit block is welded and fixed on the supporting steel beam, and a limit block is installed at both ends of the length direction of the slide groove, and a tightening bolt is threadedly connected to the limit block, and the tightening bolt is used to support the two sides of the support seat along the length direction of the slide groove.

[0009] The utility model realizes the smooth movement of the screw nut and the screw. The combination of the jacking bolt and the first bolt ensures the fixing effect of the support seat. The setting of the support shaft facilitates the mobility between the support shaft and the support seat, avoiding the problem of vibration during operation.

[0010] Further preferably, the inner diameter of the rotating shaft hole is larger than the outer diameter of the supporting shaft, and the difference is 0.2 to 0.5 mm.

[0011] Further preferably, the nut seat includes a base, and a circular hole for passing the ball screw is opened in the center of the base;

[0012] The support shaft is fixed to the opposite side of the base;

[0013] There is a gap between the end surface of the base connected to the support shaft and the end surface of the adjacent support seat.

[0014] Further preferably, there is a gap between the lower side of the base and the upper side of the fixing pad.

[0015] It is convenient for fine adjustment of the position of the nut seat.

[0016] Further preferably, the gap between the lower side of the base and the upper side of the fixing pad is 3 mm to 5 mm.

[0017] Further preferably, the support steel beam is provided with an avoidance hole for passing the ball screw.

[0018] Further preferably, a hole for passing the ball screw is formed on the fixed plate, and two sliding grooves are formed on the fixed plate, and the sliding grooves are located on opposite sides of the hole;

[0019] A threaded hole for threaded connection with the first bolt is provided at the bottom of the sliding groove.

[0020] Further preferably, the support seat includes a support portion and a mounting portion, the support portion is provided with the shaft hole, the mounting portions are provided on both sides of the support portion, and the mounting portion is provided with a mounting hole for passing the first bolt;

[0021] The top of the supporting portion is higher than the top of the mounting portion.

[0022] Further preferably, the tightening bolt abuts against a side wall of the mounting portion in the length direction of the sliding groove.

[0023] Beneficial Effects: This utility model addresses the problem of screw nuts in battery-swap robots becoming loose during operation, providing a screw nut fixing support device with a simple structure, safety, effectiveness, and low manufacturing cost. The device has low investment costs, is safe and reliable, and has low operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Fig. 1 This is a structural diagram of a specific embodiment 1 of the present utility model;

[0025] Fig. 2 This is an exploded view of the specific embodiment 1 of the present utility model;

[0026] Fig. 3 This is an exploded view of the specific embodiment 1 of the present invention from another perspective;

[0027] Fig. 4 This is a structural schematic diagram of the fixed pad in specific embodiment 1 of the present utility model.

[0028] Among them: 1 is the supporting steel beam, 2 is the fixed pad, 3 is the nut seat, 4 is the support seat, 5 is the screw nut, 6 is the ball screw, 7 is the limit block, 8 is the tightening bolt, 9 is the first bolt, 10 is the second bolt, 2-1 is the slide groove, 2-2 is the threaded hole, and 2-3 is the hole. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] See also Figs. 1 to 4Specific embodiment 1: A movable screw nut fixing support device includes a supporting steel beam 1, a nut seat 3 and a screw nut 5, and the screw nut 5 is installed on the nut seat 3. The nut seat 3 is connected to the screw nut 5 by a second bolt 10. An outwardly extending support shaft is provided on opposite sides of the nut seat 3. The nut seat 3 also includes a support assembly, which includes a fixed pad 2 and a support seat 4 for passing the support shaft. The support seat 4 is provided with a rotating shaft hole for passing the support shaft. The fixed pad 2 is welded to the support steel beam 1 and is provided with a slide 2-1 for inserting into the support seat 4. The length of the slide 2-1 is perpendicular to the axial direction of the support shaft. The support seat 4 and the fixed pad 2 are detachably connected by a vertically arranged first bolt 9. A limit block 7 is welded and fixed to the support steel beam 1. A limit block 7 is installed at each end of the length direction of the slide 2-1. The limit block 7 is threadedly connected to the limit block 7. The tightening bolt 8 is used to support the support seat 4 on both sides along the length direction of the slide 2-1. The utility model ensures the smooth movement of the screw nut 5 and the screw. The combination of the tightening bolt 8 and the first bolt 9 ensures the fixing effect of the support seat 4. The arrangement of the support shaft allows for mobility between the support shaft and the support seat 4, thereby avoiding the problem of stiffness during operation.

[0031] The inner diameter of the rotating shaft hole is larger than the outer diameter of the supporting shaft, and the difference is 0.2 to 0.5 mm.

[0032] The nut holder 3 comprises a base with a central circular hole for the ball screw 6. Support shafts are fixed to opposite sides of the base. A gap of 4-6 mm exists between the end face of the base connected to the support shaft and the adjacent end face of the support seat 4. A gap exists between the underside of the base and the upper side of the fixed pad 2, facilitating fine-tuning of the nut holder 3's position.

[0033] The supporting steel beam 1 is provided with an avoidance hole for passing the ball screw 6 .

[0034] The fixed plate 2 is provided with a hole 2-3 for passing the ball screw 6, and the fixed plate 2 is provided with two slide grooves 2-1, which are located on opposite sides of the hole; the bottom of the slide groove 2-1 is provided with a threaded hole 2-2 for threaded connection with the first bolt 9.

[0035] The support base 4 includes a support portion and a mounting portion. The support portion defines a rotation axis hole. Mounting portions are provided on either side of the support portion, each with a mounting hole for a first bolt 9. The top of the support portion is higher than the top of the mounting portion. A tightening bolt 8 abuts against the sidewalls of the mounting portion along the length of the chute 2-1.

[0036] When in use, first fix the fixed pad 2 and the limit block 7 on the supporting steel beam 1, put the two support seats 4 on the support shaft of the nut seat 3, install the support seat 4 in the slide groove 2-1 of the fixed pad 2, and use the first bolt 9 to fix the support seat 4 on the fixed pad 2. Pass the screw nut 5 and the ball screw 6 through the round hole in the middle of the nut seat 3, pass through the hole 2-3 of the fixed pad 2, tighten the second bolt 10, and after the screw nut runs smoothly, use the tightening bolt 8 to tighten the support seat.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A movable screw nut fixing support device, comprising a supporting steel beam, a nut seat and a screw nut, wherein the screw nut is mounted on the nut seat, characterized in that: An outwardly extending support shaft is provided on the opposite side of the nut seat; Also included is a nut seat support assembly, the nut seat support assembly including a fixed backing plate and a support seat for passing the support shaft; The support seat is provided with a rotating shaft hole for passing the supporting shaft; The fixing plate is welded to the supporting steel beam, and a slide groove for embedding the supporting seat is provided on the fixing plate, the length direction of the slide groove is perpendicular to the axial direction of the supporting shaft, and the supporting seat and the fixing plate are detachably connected by a vertically arranged first bolt; A limiting block is welded and fixed on the supporting steel beam, and a limiting block is installed at both ends of the length direction of the slide groove, and a tightening bolt is threadedly connected to the limiting block, and the tightening bolt is used to support the two sides of the support seat along the length direction of the slide groove.

2. The movable screw nut fixing support device according to claim 1, characterized in that: The inner diameter of the rotating shaft hole is larger than the outer diameter of the supporting shaft, and the difference is 0.2 to 0.5 mm.

3. The movable screw nut fixing support device according to claim 1, characterized in that: The nut seat includes a base, and a circular hole for passing the ball screw is opened in the center of the base; The support shaft is fixed to the opposite side of the base; There is a gap between the end surface of the base connected to the support shaft and the end surface of the adjacent support seat.

4. The movable screw nut fixing support device according to claim 3, characterized in that: There is a gap between the lower side of the base and the upper side of the fixing pad.

5. The movable screw nut fixing support device according to claim 1, characterized in that: The supporting steel beam is provided with an avoidance hole for passing the ball screw.

6. The movable screw nut fixing support device according to claim 1, characterized in that: The fixed plate is provided with a hole for passing the ball screw, and the fixed plate is provided with two sliding grooves, which are located on opposite sides of the hole; A threaded hole for threaded connection with the first bolt is provided at the bottom of the sliding groove.

7. The movable screw nut fixing support device according to claim 1, characterized in that: The support seat includes a support portion and a mounting portion, the support portion is provided with the shaft hole, the mounting portions are provided on both sides of the support portion, and the mounting portion is provided with a mounting hole for passing the first bolt; The top of the supporting portion is higher than the top of the mounting portion.

8. The movable screw nut fixing support device according to claim 7, characterized in that: The tightening bolt abuts against a side wall of the mounting portion in the length direction of the sliding groove.

Images